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Minami R, Nakahodo J, Kikuyama M, Chiba K, Tabata H, Tachibana A, Kamisawa T. Endoscopic Nasopancreatic Drainage Contributes to Early Resolution of Postgastrectomy Gastropancreatic Fistula. Intern Med 2024; 63:487-491. [PMID: 37407450 PMCID: PMC10937146 DOI: 10.2169/internalmedicine.1500-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 05/07/2023] [Indexed: 07/07/2023] Open
Abstract
A 76-year-old man experienced abdominal pain 43 days after gastric cancer resection. Computed tomography revealed a gastric wall defect extending to the pancreas, and endoscopic retrograde pancreatography revealed a gastropancreatic fistula. Afterward, a nasopancreatic duct drainage tube was inserted. Seven days later, no leakage of the contrast medium from the duct was observed, and the patient was discharged 22 days after endoscopic nasopancreatic duct drainage. Endoscopic nasopancreatic duct drainage prevents pancreatic juice leakage and promotes gastric ulcer healing.
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Affiliation(s)
- Ryogo Minami
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Jun Nakahodo
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Masataka Kikuyama
- Department of Gastroenterology, Tokyo Women's Medical University, Japan
| | - Kazuro Chiba
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Hiroki Tabata
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Ayu Tachibana
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Terumi Kamisawa
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
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2
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Sasaki Y, Nakahodo J, Onishi T, Tachibana A, Minami R, Noma E, Moriguchi Y, Tabata H, Shimizuguchi R, Takao A, Shibata S, Chiba K, Arakawa T, Iizuka T, Kamisawa T. Duodenal Diverticular Perforation Treated Conservatively: Reassessing Indications for Treatment. Intern Med 2023; 62:3327-3331. [PMID: 36948615 DOI: 10.2169/internalmedicine.1211-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/24/2023] Open
Abstract
A 59-year-old woman presented with a chief complaint of melena. She had no abdominal findings, such as tenderness or tapping pain. Laboratory tests revealed a white blood cell count of 5,300 cells/μL and C-reactive protein level of 0.07 mg/dL. Inflammation and anemia (hemoglobin 12.4 g/dL) were denied. Contrast-enhanced computed tomography (CT) revealed multiple duodenal diverticula and air surrounding a descending duodenal diverticulum. Based on these findings, duodenal diverticular perforation (DDP) was suspected. Oral food intake was stopped, and nasogastric tube feeding and conservative treatment with cefmetazole, lansoprazole, and ulinastatin were begun. On day 8 of hospitalization, follow-up CT revealed the disappearance of the air surrounding the duodenum, and the patient was discharged on day 19 after the resumption of oral feeding.
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Affiliation(s)
- Yuri Sasaki
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Jun Nakahodo
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Tomoko Onishi
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Ayu Tachibana
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Ryogo Minami
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Eriko Noma
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Yoshiaki Moriguchi
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Hiroki Tabata
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Ryoko Shimizuguchi
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Akinari Takao
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Satomi Shibata
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Kazuro Chiba
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Takeo Arakawa
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Toshiro Iizuka
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
| | - Terumi Kamisawa
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Japan
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3
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Minami R, Tachibana A, Moriguchi Y, Noma E, Arakawa T, Oonishi T, Horiguchi S, Iizuka T. Endoscopic submucosal dissection for pharyngeal cancer: removal of supra-oropharyngeal cancer. VideoGIE 2023; 8:253-256. [PMID: 37456214 PMCID: PMC10339103 DOI: 10.1016/j.vgie.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Video 1.
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Affiliation(s)
- Ryogo Minami
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Ayu Tachibana
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Yoshiaki Moriguchi
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Eriko Noma
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Takeo Arakawa
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Tomoko Oonishi
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Shinichiro Horiguchi
- Department of Pathology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Toshiro Iizuka
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
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4
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Minami R, Iizuka T, Tachibana A, Moriguchi Y, Noma E, Onishi T, Arakawa T, Horiguchi S. Rapidly growing oropharyngeal cancer with a 6-month course. Clin J Gastroenterol 2023:10.1007/s12328-023-01796-9. [PMID: 37055609 DOI: 10.1007/s12328-023-01796-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 03/30/2023] [Indexed: 04/15/2023]
Abstract
A male patient in his 70s who had undergone a regular upper gastrointestinal endoscopy noted a flat, erythematous area on the right soft palate of the oropharynx 9 months after his treatment of oropharyngeal cancer. Six months after noticing the lesion, endoscopy revealed that the lesion had rapidly developed into a thick, erythematous, bump. Endoscopic submucosal dissection was performed. Pathological analysis of the resected tissue found a squamous cell carcinoma with a thickness of 1400 μm invading the subepithelial layer. There are few reports on the growth speed of pharyngeal cancer and it remains unclear. In some cases, the growth of the pharyngeal cancer may be rapid, and it is important to follow up the patient in a short period of time.
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Affiliation(s)
- Ryogo Minami
- Department of Gastroenterology, Komagome Hospital, Tokyo Metropolitan Cancer and Infectious Diseases Center, 3-18-22 Honkomagome, Bunkyo-Ku, Tokyo, 113-8677, Japan
| | - Toshiro Iizuka
- Department of Gastroenterology, Komagome Hospital, Tokyo Metropolitan Cancer and Infectious Diseases Center, 3-18-22 Honkomagome, Bunkyo-Ku, Tokyo, 113-8677, Japan.
| | - Ayu Tachibana
- Department of Gastroenterology, Komagome Hospital, Tokyo Metropolitan Cancer and Infectious Diseases Center, 3-18-22 Honkomagome, Bunkyo-Ku, Tokyo, 113-8677, Japan
| | - Yoshiaki Moriguchi
- Department of Gastroenterology, Komagome Hospital, Tokyo Metropolitan Cancer and Infectious Diseases Center, 3-18-22 Honkomagome, Bunkyo-Ku, Tokyo, 113-8677, Japan
| | - Eriko Noma
- Department of Gastroenterology, Komagome Hospital, Tokyo Metropolitan Cancer and Infectious Diseases Center, 3-18-22 Honkomagome, Bunkyo-Ku, Tokyo, 113-8677, Japan
| | - Tomoko Onishi
- Department of Gastroenterology, Komagome Hospital, Tokyo Metropolitan Cancer and Infectious Diseases Center, 3-18-22 Honkomagome, Bunkyo-Ku, Tokyo, 113-8677, Japan
| | - Takeo Arakawa
- Department of Gastroenterology, Komagome Hospital, Tokyo Metropolitan Cancer and Infectious Diseases Center, 3-18-22 Honkomagome, Bunkyo-Ku, Tokyo, 113-8677, Japan
| | - Shinichiro Horiguchi
- Department of Pathology, Komagome Hospital, Tokyo Metropolitan Cancer and Infectious Diseases Center, Bunkyo-Ku, Tokyo, Japan
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5
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Yoshikawa M, Mouri T, Nakanishi H, Kohagura J, Shima Y, Sakamoto M, Nakashima Y, Ezumi N, Minami R, Yamada I, Yasuhara R, Funaba H, Minami T, Kenmochi N. Improvement in multipass Thomson scattering system comprising laser amplification system developed in GAMMA 10/PDX. Rev Sci Instrum 2021; 92:033515. [PMID: 33820074 DOI: 10.1063/5.0040461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 02/13/2021] [Indexed: 06/12/2023]
Abstract
The multipass Thomson scattering (MPTS) technique is one of the most useful methods for measuring low-electron-density plasmas. The MPTS system increases Thomson scattering (TS) signal intensities by integrating all multipass (MP) signals and improving the TS time resolution by analyzing each pass signal. The fully coaxial MPTS system developed in GAMMA 10/potential-control and diverter-simulator experiments has a polarization-based configuration with image-relaying optics. The MPTS system can enhance Thomson scattered signals for improving the measurement accuracy and megahertz-order time resolution. In this study, we develop a new MPTS system comprising a laser amplification system to obtain continuous MP signals. The laser amplification system can improve degraded laser power and return an amplified laser to the MP system. We obtain continuous MP signals from the laser amplification system by improving the laser beam profile adjuster in gas scattering experiments. Moreover, we demonstrate that more MP signals and stronger amplified MP signals can be achieved via multiple laser injections to the laser amplification system in the developed MP system comprising a laser amplification system.
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Affiliation(s)
- M Yoshikawa
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - T Mouri
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - H Nakanishi
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - J Kohagura
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Shima
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - M Sakamoto
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Nakashima
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - N Ezumi
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - R Minami
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - I Yamada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
| | - R Yasuhara
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
| | - H Funaba
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
| | - T Minami
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - N Kenmochi
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
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6
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Yoshikawa M, Kohagura J, Chikatsu M, Shima Y, Sakamoto M, Nakashima Y, Ezumi N, Minami R, Yasuhara R, Yamada I, Funaba H, Minami T, Kenmochi N. Development of a laser amplification system for the multi-pass Thomson scattering system for GAMMA 10/PDX. Rev Sci Instrum 2018; 89:10C102. [PMID: 30399870 DOI: 10.1063/1.5032224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The multi-pass Thomson scattering (MPTS) system is a useful technique for increasing the Thomson scattering (TS) signal intensities and improving the TS diagnostic time resolution. The MPTS system developed in GAMMA 10/PDX has a polarization-based configuration with an image relaying system. The MPTS system has been constructed for enhancing the Thomson scattered signals for the improvement of measurement accuracy and the megahertz sampling time resolution. However, in the normal MPTS system, the MPTS signal intensities decrease with the pass number because of the damping due to the optical components. Subsequently, we have developed a new MPTS system with the laser amplification system. The laser amplification system can improve the degraded laser power after six passes in the multi-pass system to the initial laser power. For the first time worldwide, we successfully obtained the continued multi-pass signals after the laser amplification system in the gas scattering experiments.
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Affiliation(s)
- M Yoshikawa
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - J Kohagura
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - M Chikatsu
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Shima
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - M Sakamoto
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Nakashima
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - N Ezumi
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - R Minami
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - R Yasuhara
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
| | - I Yamada
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
| | - H Funaba
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
| | - T Minami
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - N Kenmochi
- Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
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7
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Cho T, Higaki H, Hirata M, Hojo H, Ichimura M, Ishii K, Itakura A, Katanuma I, Kohagura J, Nakashima Y, Saito T, Tatematsu Y, Yoshikawa M, Itoh H, Minami R, Nagashima S, Numakura T, Watanabe H, Yoshida M, Yatsu K, Miyoshi S. Summarized Scaling Laws of Plasma Confining Potential Formation and Effects in the Gamma 10 Tandem Mirror. Fusion Science and Technology 2018. [DOI: 10.13182/fst03-a11963560] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Higaki
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Hojo
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ichimura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ishii
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - A. Itakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - I. Katanuma
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Nakashima
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Saito
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tatematsu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshikawa
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Itoh
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Nagashima
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Watanabe
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshida
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Yatsu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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8
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Imai T, Ichimura M, Nakashima Y, Sakamoto M, Katanuma I, Yoshikawa M, Kariya T, Hirata M, Kohagura J, Minami R, Numakura T, Ikezoe R, Oki K, Sakamoto K. GAMMA 10/PDX Project Status and Future. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-1t29] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Imai
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - M. Hirata
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - R. Ikezoe
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - K. Oki
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - K. Sakamoto
- Japan Atomic Energy Research Institute(JAEA), Naka, Japan
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9
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Kariya T, Minami R, Imai T, Kubo S, Shimozuma T, Takahashi H, Yoshimura Y, Ito S, Mutoh T, Ota M, Endo Y, Sakamoto K. Development of Mega-Watt Gyrotrons for Fusion Research. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a11622] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Kariya
- Plasma Research Center (PRC), University of Tsukuha, Tsukuha, lharaki, 305-8577, Japan
| | - R. Minami
- Plasma Research Center (PRC), University of Tsukuha, Tsukuha, lharaki, 305-8577, Japan
| | - T. Imai
- Plasma Research Center (PRC), University of Tsukuha, Tsukuha, lharaki, 305-8577, Japan
| | - S. Kubo
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - H. Takahashi
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - Y. Yoshimura
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - S. Ito
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - T. Mutoh
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - M. Ota
- Plasma Research Center (PRC), University of Tsukuha, Tsukuha, lharaki, 305-8577, Japan
| | - Y. Endo
- Plasma Research Center (PRC), University of Tsukuha, Tsukuha, lharaki, 305-8577, Japan
| | - K. Sakamoto
- Japan Atomic Energy Agency (JAEA), Naka, lharaki, 311-0193, Japan
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10
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Imai T, Ichimura M, Nakashima Y, Katanuma I, Yoshikawa M, Kariya T, Minami R, Miyata Y, Yamaguchi Y, Ikezoe R, Shimozuma T, Kubo S, Yoshimura Y, Takahashi H, Mutoh T, Sakamoto K, Mizuguchi M, Ota M, Ozawa H, Hosoi K, Yaguchi F, Yonenaga R, Imai Y, Murakani T, Yagi K, Nakamura T, Aoki1 H, Iizumi H, Ishii T, Kondou H, Takeda H, Ichioka N, Masaki S, Yokoyama T. Status and Plan of GAMMA 10 Tandem Mirror Program. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a11563] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Imai
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - Y. Miyata
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - Y. Yamaguchi
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - R. Ikezoe
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - T. Shimozuma
- National Institute of Fusion Science(NIFS), Toki, Japan
| | - S. Kubo
- National Institute of Fusion Science(NIFS), Toki, Japan
| | - Y. Yoshimura
- National Institute of Fusion Science(NIFS), Toki, Japan
| | - H. Takahashi
- National Institute of Fusion Science(NIFS), Toki, Japan
| | - T. Mutoh
- National Institute of Fusion Science(NIFS), Toki, Japan
| | - K. Sakamoto
- Japan Atomic Energy Research Institute(JAEA), Naka, Japan
| | - M. Mizuguchi
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - M. Ota
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - H. Ozawa
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - K. Hosoi
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - F. Yaguchi
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - R. Yonenaga
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - Y. Imai
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - T. Murakani
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - K. Yagi
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | | | - H. Aoki1
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - H. Iizumi
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - T. Ishii
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - H. Kondou
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - H. Takeda
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - N. Ichioka
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - S. Masaki
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - T. Yokoyama
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
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11
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Imai T, Tatematsu Y, Numakura T, Sakamoto K, Minami R, Watanabe O, Kariya T, Mitsunaka Y, Kamata Y, Machida N, Kaizuka T, Nakamura M, Saito T, Cho T. Upgrade Program of ECRH System for GAMMA 10. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1352] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Imai
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Sakamoto
- Naka Fusion Research Est., Japan Atomic Energy Agency, Naka,Ibaraki, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - O. Watanabe
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kariya
- Toshiba Electron Tubes & Devices Co. Ltd, Otawara, Tochigi, Japan
| | - Y. Mitsunaka
- Toshiba Electron Tubes & Devices Co. Ltd, Otawara, Tochigi, Japan
| | - Y. Kamata
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - N. Machida
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kaizuka
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Nakamura
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Saito
- Toshiba Electron Tubes & Devices Co. Ltd, Otawara, Tochigi, Japan
| | - T. Cho
- Research Center for Dev. of Far Infrared Region, Univ. of Fukui, Fukui, Japan
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12
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Kariya T, Mitsunaka Y, Imai T, Saito T, Tatematsu Y, Sakamoto K, Minami R, Watanabe O, Numakura T, Endo Y. Optimization of 28 GHz Gyrotron Output Performance for ECRH Experiment of the GAMMA 10. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1414] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Kariya
- Toshiba Electron Tubes & Devices Co. Ltd, Otawara, Tochigi 324-8550, Japan
| | - Y. Mitsunaka
- Toshiba Electron Tubes & Devices Co. Ltd, Otawara, Tochigi 324-8550, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Saito
- Research Center for Dev. of Far Infrared Region, Univ. of Fukui, Bumkyo, Fukui 910-8507, Japan
| | - Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Sakamoto
- Naka Fusion Research Est., Japan Atomic Energy Agency, Naka,Ibaraki 311-0193, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - O. Watanabe
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Endo
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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13
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Nakashima Y, Sakamoto M, Takeda H, Ichimura K, Hosoi K, Oki K, Yoshikawa M, Nishino N, Matsuura H, Hirata M, Ichimura M, Kariya T, Katanuma I, Kohagura J, Minami R, Numakura T, Ikezoe R, Akabane Y, Kigure S, Nagatsuka Y, Takahashi S, Ueda H, Imai T. First Results and Future Research Plan of Divertor Simulation Experiments Using D-Module in the End-Cell of the GAMMA 10/PDX Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-a16881] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - H. Takeda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - K. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - K. Hosoi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - K. Oki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - N. Nishino
- Graduate school of Engineering, Hiroshima University, Hiroshima 739-8527, Japan
| | - H. Matsuura
- Radiation Research Center, Osaka Prefecture University, Osaka 599-8570, Japan
| | - M. Hirata
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - R. Ikezoe
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - Y. Akabane
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - S. Kigure
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - Y. Nagatsuka
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - S. Takahashi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - H. Ueda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
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14
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Kariya T, Minami R, Imai T, Shimozuma T, Kubo S, Yoshimura Y, Takahashi H, Ito S, Mutoh T, Nakabayashi H, Eguchi T, Numakura T, Endo Y, Mitsunaka Y, Sakamoto K. Development of 154 GHz 1 MW Gyrotron for ECRH of LHD. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-a16923] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Kariya
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Minami
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Imai
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Shimozuma
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - S. Kubo
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - Y. Yoshimura
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - H. Takahashi
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - S. Ito
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - T. Mutoh
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - H. Nakabayashi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Eguchi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Numakura
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - Y. Endo
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - Y. Mitsunaka
- Toshiba Electron Tubes & Devices Co., Ltd. (TETD), Otawara, Tochigi, 324-8550, Japan
| | - K. Sakamoto
- Japan Atomic Energy Agency (JAEA), Naka, Ibaraki, 311-0193, Japan
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15
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Cho T, Higaki H, Hirata M, Hojo H, Ichimura M, Ishii K, Islam K, Itakura A, Katanuma I, Kohagura J, Minami R, Nakashima Y, Numakura T, Saito T, Tatematsu Y, Yoshikawa M, Watanabe O, Kubota Y, Kobayashi T, Yamaguchi Y, Saimaru H, Higashizono Y, Miyata Y, Kiminami S, Shimizu K, Itou M, Ikuno T, Mase A, Yasaka Y, Sakamoto K, Yoshida M, Kojima A, Ogura K, Nishino N, Horton W, Kariya T, Imai T, Pastukhov V, Miyoshi S. Overview of Recent Progress in the GAMMA 10 Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1305] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Cho
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - H. Higaki
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - M. Hirata
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - H. Hojo
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - K. Ishii
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - K. Islam
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - A. Itakura
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - T. Saito
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - O. Watanabe
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - Y. Kubota
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - T. Kobayashi
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - Y. Yamaguchi
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - H. Saimaru
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - Y. Higashizono
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - Y. Miyata
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - S. Kiminami
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - K. Shimizu
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - M. Itou
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - T. Ikuno
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - A. Mase
- Art, Science and Technology Center for Cooperative Research, Kyushu University, Japan
| | - Y. Yasaka
- Department of Electrical and Electronics Engineering, Kobe University, Japan
| | - K. Sakamoto
- Naka Fusion Research Establishment, Japan Atomic Energy Agency, Japan
| | - M. Yoshida
- Naka Fusion Research Establishment, Japan Atomic Energy Agency, Japan
| | - A. Kojima
- Naka Fusion Research Establishment, Japan Atomic Energy Agency, Japan
| | - K. Ogura
- Graduate School of Science and Technology, Niigata University, Japan
| | - N. Nishino
- Graduated School of Engineering, Hiroshima University, Japan
| | - W. Horton
- Institute for Fusion Studies, The University of Texas at Austin, USA
| | - T. Kariya
- Toshiba Electron Tubes and Devices Co. Ltd., Tochigi, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - V.P. Pastukhov
- Russian Research Center “Kurchatov Institute”, Moscow, Russia Kurchatov Institute, Russia
| | - S. Miyoshi
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
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16
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Nakashima Y, Takeda H, Yonenaga R, Hosoi K, Ozawa H, Ishii T, Nishino N, Ichimura M, Kariya T, Katanuma I, Minami R, Miyata Y, Yamaguchi Y, Yoshikawa M, Imai T. Research Plan for Divertor Simulation Studies and Its Recent Results Using the GAMMA 10 Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a11575] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Takeda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Yonenaga
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Hosoi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Ozawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Ishii
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - N. Nishino
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, 739-8527, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Miyata
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Yamaguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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17
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Takahashi H, Shimozuma T, Kubo S, Ito S, Kobayashi S, Yoshimura Y, Igami H, Mizuno Y, Takita Y, Mutoh T, Kariya T, Minami R, Imai T. The Development of a 77-GHz, 1-MW ECRH System for the Large Helical Device. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-a9265] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Takahashi
- National Institute for Fusion Science Toki, Gifu, Japan
| | - T. Shimozuma
- National Institute for Fusion Science Toki, Gifu, Japan
| | - S. Kubo
- National Institute for Fusion Science Toki, Gifu, Japan
| | - S. Ito
- National Institute for Fusion Science Toki, Gifu, Japan
| | - S. Kobayashi
- National Institute for Fusion Science Toki, Gifu, Japan
| | - Y. Yoshimura
- National Institute for Fusion Science Toki, Gifu, Japan
| | - H. Igami
- National Institute for Fusion Science Toki, Gifu, Japan
| | - Y. Mizuno
- National Institute for Fusion Science Toki, Gifu, Japan
| | - Y. Takita
- National Institute for Fusion Science Toki, Gifu, Japan
| | - T. Mutoh
- National Institute for Fusion Science Toki, Gifu, Japan
| | - T. Kariya
- Plasma Research Centre, University of Tsukuba, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Japan
| | - T. Imai
- Plasma Research Centre, University of Tsukuba, Japan
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18
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Shimozuma T, Takahashi H, Kubo S, Yoshimura Y, Igami H, Takita Y, Kobayashi S, Ito S, Mizuno Y, Idei H, Notake T, Sato M, Ohkubo K, Watari T, Mutoh T, Minami R, Kariya T, Imai T. ECRH-Related Technologies for High-Power and Steady-State Operation in LHD. Fusion Science and Technology 2017. [DOI: 10.13182/fst58-530] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Shimozuma
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Takahashi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Kubo
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Yoshimura
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Igami
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Takita
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Kobayashi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Ito
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Mizuno
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Idei
- Research Institute for Applied Mechanics, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - T. Notake
- Tera-Photonics Laboratory, RIKEN, Aoba Sendai-City, Miyagi 980-0845, Japan
| | - M. Sato
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Ohkubo
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Watari
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mutoh
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba 305-8577, Japan
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19
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Yoshikawa M, Miyata Y, Mizuguchi M, Imai N, Hojo H, Ichimura M, Kariya T, Katanuma I, Nakashima Y, Minami R, Shidara H, Yamaguchi Y, Shima Y, Ohno Y, Yaguchi F, Imai T. Use of a Gold Neutral Beam Probe to Study Fluctuation Suppression During Potential Formation in the GAMMA 10 Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-a9492] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Yoshikawa
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Miyata
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Mizuguchi
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - N. Imai
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Hojo
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ichimura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kariya
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - I. Katanuma
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Nakashima
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Shidara
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Yamaguchi
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Shima
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Ohno
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - F. Yaguchi
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
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20
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Nakashima Y, Sakamoto M, Takeda H, Ichimura K, Hosoda Y, Iwamoto M, Shimizu K, Hosoi K, Oki K, Yoshikawa M, Hirata M, Ikezoe R, Imai T, Kariya T, Katanuma I, Kohagura J, Minami R, Numakura T, Wang X, Ichimura M. Recent Results of Divertor Simulation Experiments Using D-Module in the GAMMA 10/PDX Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-882] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Nakashima
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Sakamoto
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Takeda
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ichimura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Hosoda
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Iwamoto
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Shimizu
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Hosoi
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Oki
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshikawa
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Ikezoe
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kariya
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - I. Katanuma
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - X. Wang
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ichimura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
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21
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Kariya T, Minami R, Imai T, Kato T, Idei H, Hanada K, Zushi H, Numakura T, Endo Y, Ichimura M. Development of 28 GHz Gyrotron for Cooperative ECH Study. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-848] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Kariya
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Minami
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Imai
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Kato
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, 305-8577, Japan
| | - H. Idei
- Kyusyu University, Research Institute for Applied Mechanics, Fukuoka, 816-8580, Japan
| | - K. Hanada
- Kyusyu University, Research Institute for Applied Mechanics, Fukuoka, 816-8580, Japan
| | - H. Zushi
- Kyusyu University, Research Institute for Applied Mechanics, Fukuoka, 816-8580, Japan
| | - T. Numakura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, 305-8577, Japan
| | - Y. Endo
- Kyusyu University, Research Institute for Applied Mechanics, Fukuoka, 816-8580, Japan
| | - M. Ichimura
- Kyusyu University, Research Institute for Applied Mechanics, Fukuoka, 816-8580, Japan
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22
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Sumida S, Ichimura M, Yokoyama T, Hirata M, Ikezoe R, Iwamoto Y, Okada T, Takeyama K, Jang S, Sakamoto M, Nakashima Y, Yoshikawa M, Minami R, Oki K, Mizuguchi M, Ichimura K. High-Density Plasma Production in the GAMMA 10 Central Cell with ICRF Heating on Both Anchor Cells. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-890] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Sumida
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - M. Ichimura
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - T. Yokoyama
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - M. Hirata
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - R. Ikezoe
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - Y. Iwamoto
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - T. Okada
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - K. Takeyama
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - S. Jang
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - M. Sakamoto
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - Y. Nakashima
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - M. Yoshikawa
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - R. Minami
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - K. Oki
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - M. Mizuguchi
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
| | - K. Ichimura
- University of Tsukuba, Plasma Research Center, Tsukuba, Japan
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23
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Minami R, Imai T, Kariya T, Numakura T, Kato T, Uehara M, Goto R, Tsumura K, Endo Y, Ichimura M. Experimental Results and Design of Mirror Antenna and MW Gyrotron for Control of High Intermittent Heat Flux in GAMMA 10 Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Minami
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - T. Imai
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - T. Kariya
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - T. Numakura
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - T. Kato
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - M. Uehara
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - R. Goto
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - K. Tsumura
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - Y. Endo
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - M. Ichimura
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
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24
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Minami R, Imai T, Kariya T, Numakura T, Uehara M, Tsumura K, Ebashi Y, Kajino S, Endo Y, Nakashima Y. Measurement of effect of electron cyclotron heating in a tandem mirror plasma using a semiconductor detector array and an electrostatic energy analyzer. Rev Sci Instrum 2016; 87:11E306. [PMID: 27910325 DOI: 10.1063/1.4959574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Temporally and spatially resolved soft x-ray and end-loss-electron analyses of the electron cyclotron heated plasmas are carried out by using a semiconductor detector array and an electrostatic energy analyzer in the GAMMA 10 tandem mirror. The flux and the energy spectrum of the end loss electrons are measured by a multi-grid energy analyzer. Recently, the electron cyclotron heating power modulation experiments have been started in order to generate and control the high heat flux and to make the edge localized mode-like intermittent heat load pattern for the divertor simulation studies by the use of these detectors for electron properties.
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Affiliation(s)
- R Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Uehara
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K Tsumura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Ebashi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - S Kajino
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Endo
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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25
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Minami R, Imai T, Kariya T, Numakura T, Eguchi T, Kawarasaki R, Nakazawa K, Kato T, Sato F, Nanzai H, Uehara M, Endo Y, Ichimura M. Soft x-ray intensity profile measurements of electron cyclotron heated plasmas using semiconductor detector arrays in GAMMA 10 tandem mirror. Rev Sci Instrum 2014; 85:11D807. [PMID: 25430220 DOI: 10.1063/1.4885495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Temporally and spatially resolved soft x-ray analyses of electron cyclotron heated plasmas are carried out by using semiconductor detector arrays in the GAMMA 10 tandem mirror. The detector array has 16-channel for the measurements of plasma x-ray profiles so as to make x-ray tomographic reconstructions. The characteristics of the detector array make it possible to obtain spatially resolved plasma electron temperatures down to a few tens eV and investigate various magnetohydrodynamic activities. High power electron cyclotron heating experiment for the central-cell region in GAMMA 10 has been started in order to reduce the electron drag by increasing the electron temperature.
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Affiliation(s)
- R Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Eguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R Kawarasaki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K Nakazawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Kato
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - F Sato
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H Nanzai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Uehara
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Endo
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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26
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Eguchi T, kariya T, Imai T, Nakabayashi H, Minami R, Numakura T, Kawarasaki R, Nakazawa K. Development of 28 GHz/35 GHz Dual-Frequency Gyrotron for Fusion Research. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16928] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Eguchi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. kariya
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Imai
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - H. Nakabayashi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Minami
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Numakura
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Kawarasaki
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - K. Nakazawa
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
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27
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Ugajin Y, Ichimura M, Yokoyama T, Saito Y, Hirata M, Ikezoe R, Sato T, Iimura T, Annaka Y, Shiratani A, Nakashima Y, Minami R, Imai T. ICRF Experiment with Phase-Controlled Antennas on GAMMA 10. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Ugajin
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
| | - T. Yokoyama
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
| | - Y. Saito
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
| | - M. Hirata
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
| | - R. Ikezoe
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
| | - T. Sato
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
| | - T. Iimura
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
| | - Y. Annaka
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
| | - A. Shiratani
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
| | - R. Minami
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
| | - T. Imai
- Plasma Research Center, University of Tsukuba 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, Japan, 305-8577
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28
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Nakazawa K, Imai T, Kariya T, Minami R, Numakura T, Nakabayashi H, Eguchi T, Kawarasaki R. The Improvement of the ECH Antenna System in the GAMMA 10. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Nakazawa
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Imai
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Kariya
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Minami
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Numakura
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - H. Nakabayashi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Eguchi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Kawarasaki
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
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29
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Numakura T, Imai T, Kariya T, Minami R, Nakabayashi H, Eguchi T, Kawarasaki R, Nakazawa Y. Numerical Calculation of the Gyrotron Oscillator in GAMMA 10 ECH Systems. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16933] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kariya
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Nakabayashi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Eguchi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Kawarasaki
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Nakazawa
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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30
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Kawarasaki R, Imai T, Minami R, Kariya T, Numakura T, Nakabayashi H, Eguchi T, Nakazawa K, Mizuguchi M, Yoshikawa M, Sakamoto M. 2-Dimensional Soft X-Ray Behavior of ECR Heated Plasma in GAMMA 10. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Kawarasaki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - H. Nakabayashi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Eguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - K. Nakazawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - M. Mizuguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
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31
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Yoshikawa M, Morimoto M, Shima Y, Kohagura J, Sakamoto M, Yamada I, Yasuhara R, Kawahata K, Funaba H, Minami T, Nakashima Y, Ichimura M, Minami R, Hosoi K, Kitade S, Kawarasaki R, Kobayashi S, Mizuuchi T, Imai T. Electron Temperature and Density Measurements by Using Thomson Scattering System in GAMMA 10. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Morimoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Shima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - I. Yamada
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - R. Yasuhara
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - H. Funaba
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Minami
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - Y. Nakashima
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Hosoi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kitade
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Kawarasaki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kobayashi
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - T. Mizuuchi
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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32
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Minami R, Imai T, Kariya T, Numakura T, Nakabayashi H, Eguchi T, Kawarasaki R, Nakazawa K, Endo Y. Results of ECH Power Modulation Experimenting High and ELM-Like Heat Flux in GAMMA 10 Tandem Mirror. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Minami
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Imai
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Kariya
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Numakura
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - H. Nakabayashi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Eguchi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Kawarasaki
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - K. Nakazawa
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - Y. Endo
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
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33
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Nakabayashi H, Kariya T, Imai T, Minami R, Numakura T, Eguchi T, Kawarasaki R, Nakazawa H, Sakamoto K. The Performance Test and the Improved Design of 28 GHz 1 MW Gyrotron. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Nakabayashi
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - T. Imai
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - R. Minami
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - T. Eguchi
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - R. Kawarasaki
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - H. Nakazawa
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - K. Sakamoto
- Japan Atomic Energy Agency, Naka Fusion Institute, 801-1, Mukouyama, Naka, Japan, 311-0193
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34
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Kigure S, Nakashima Y, Nishino N, Hosoi K, Ichimura K, Takeda H, Kobayashi S, Mizuuchi T, Ueda H, Takahashi S, Yoshikawa M, Kohagura J, Minami R, Kariya T, Sakamoto M, Ichimura M, Imai T. Observation of Plasma Behavior during the ECRH Injection by Using a High-Speed Camera in GAMMA 10. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Kigure
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - N. Nishino
- Graduate school of Engineering, Hiroshima University Hiroshima, 739-8527, Japan
| | - K. Hosoi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Takeda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kobayashi
- Institute of Advanced Energy, Kyoto University, Gokasyo, Uji, 611 -0011, Japan
| | - T. Mizuuchi
- Institute of Advanced Energy, Kyoto University, Gokasyo, Uji, 611 -0011, Japan
| | - H. Ueda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - S. Takahashi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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35
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Nishino N, Kawano H, Higashizono Y, Yonenaga R, Kigura S, Nakashima Y, Hosoi K, Ichimura K, Takeda H, Ueda H, Takahashi S, Ookawa K, Yoshikawa M, Ikezoe R, Kohagura J, Kariya T, Katanuma I, Hirata M, Numakura T, Minami R, Ichimura M, Sakamoto M, Imai T. Edge Turbulence/Fluctuation Observation at “High Density Mode” in GAMMA 10 by Fast Camera. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- N. Nishino
- Graduate school of Engineering, Hiroshima University
| | - H. Kawano
- Plasma Research Center, University of Tsukuba
| | | | - R. Yonenaga
- Plasma Research Center, University of Tsukuba
| | - S. Kigura
- Plasma Research Center, University of Tsukuba
| | | | - K. Hosoi
- Plasma Research Center, University of Tsukuba
| | - K. Ichimura
- Plasma Research Center, University of Tsukuba
| | - H. Takeda
- Plasma Research Center, University of Tsukuba
| | - H. Ueda
- Plasma Research Center, University of Tsukuba
| | | | - K. Ookawa
- Plasma Research Center, University of Tsukuba
| | | | - R. Ikezoe
- Plasma Research Center, University of Tsukuba
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba
| | - T. Kariya
- Plasma Research Center, University of Tsukuba
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba
| | - M. Hirata
- Plasma Research Center, University of Tsukuba
| | - T. Numakura
- Plasma Research Center, University of Tsukuba
| | - R. Minami
- Plasma Research Center, University of Tsukuba
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba
| | - T. Imai
- Plasma Research Center, University of Tsukuba
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36
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Ogasawara S, Kubo S, Nishiura M, Tatematsu Y, Saito T, Tanaka K, Shimozuma T, Yoshimura Y, Igami H, Takahashi H, Ito S, Takita Y, Kobayashi S, Mizuno Y, Okada K, Minami R, Kariya T, Imai T. Suppression of spurious mode oscillation in mega-watt 77-GHz gyrotron as a high quality probe beam source for the collective Thomson scattering in LHD. Rev Sci Instrum 2012; 83:10D731. [PMID: 23126903 DOI: 10.1063/1.4740257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Collective Thomson scattering (CTS) diagnostic requires a strong probing beam to diagnose a bulk and fast ion distribution function in fusion plasmas. A mega-watt gyrotron for electron cyclotron resonance heating is used as a probing beam in the large helical device. Spurious mode oscillations are often observed during the turning on/off phase of the modulation. The frequency spectra of the 77-GHz gyrotron output power have been measured, and then one of the spurious modes, which interferes with the CTS receiver system, is identified as the TE(17,6) mode at the frequency of 74.7 GHz. The mode competition calculation indicates that the increase of the magnetic field strength at the gyrotron resonator can avoid such a spurious mode and excite only the main TE(18,6) mode. The spurious radiation at the 74.7 GHz is experimentally demonstrated to be suppressed in the stronger magnetic field than that optimized for the high-power operation.
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Affiliation(s)
- S Ogasawara
- Department of Energy Engineering and Science, Nagoya University, Japan.
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37
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Nishino N, Nakashima Y, Takeda H, Yonenaga R, Hosoi K, Nakashima Y, Ozawa H, Ishii T, Ichimura M, Kariya T, Katanuma I, Minami R, Miyata Y, Yamaguchi Y, Yoshikawa M, Imai T. High-Speed Imaging of Edge Plasma in the GAMMA 10 Tandem Mirror. Fusion Science and Technology 2011. [DOI: 10.13182/fst11-a11640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- N. Nishino
- Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, 739-8527, Japan
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Takeda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Yonenaga
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Hosoi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Ozawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Ishii
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Miyata
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Yamaguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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38
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Yoshikawa M, Miyata Y, Mizuguchi M, Oono Y, Yaguchi F, Shima Y, Imai N, Ichimura M, Imai T, Kariya T, Katanuma I, Nakashima Y, Hojo H, Minami R, Yamaguchi Y. Fluctuation Suppression during Confinement Potential Formation in GAMMA 10. Fusion Science and Technology 2011. [DOI: 10.13182/fst11-a11619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Miyata
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Mizuguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Oono
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - F. Yaguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Shima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - N. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Hojo
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Yamaguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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39
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Minami R, Imai T, Kariya T, Ota M, Aoki H, Iizumi H, Kondou H, Endo Y. High Power ECH Experiments for Direct Bulk Electron Heating in Central-Cell Region Plasmas on GAMMA 10 Tandem Mirror. Fusion Science and Technology 2011. [DOI: 10.13182/fst11-a11623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Minami
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ota
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Aoki
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Iizumi
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Kondou
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Endo
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
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40
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Horai Y, Miyamura T, Shimada K, Takahama S, Minami R, Yamamoto M, Suematsu E. Eternacept for the treatment of patients with rheumatoid arthritis and concurrent interstitial lung disease. J Clin Pharm Ther 2010; 37:117-21. [DOI: 10.1111/j.1365-2710.2010.01234.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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41
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Nakashima Y, Ichimura M, Katanuma I, Yoshikawa M, Kariya T, Minami R, Kiwamoto Y, Miyata Y, Shidara H, Yamaguchi Y, Yonenaga R, Takeda H, Imai T. Research plan for divertor simulation making use of a large tandem mirror device. Fusion Engineering and Design 2010. [DOI: 10.1016/j.fusengdes.2010.09.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Satoh T, Oki A, Uno K, Sakurai M, Ochi H, Okada S, Minami R, Matsumoto K, Tanaka YO, Tsunoda H, Homma S, Yoshikawa H. High incidence of silent venous thromboembolism before treatment in ovarian cancer. Br J Cancer 2007; 97:1053-7. [PMID: 17895896 PMCID: PMC2360447 DOI: 10.1038/sj.bjc.6603989] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Venous thromboembolism (VTE) such as deep-vein thrombosis (DVT) and pulmonary thromboembolism (PTE) often occurs after surgery and rarely occurs even before surgery in patients with ovarian cancer. It is well known that levels of plasma D-dimer (DD) before treatment in most ovarian cancer patients are increased. This study therefore examined whether increased levels of DD are associated with presence of VTE before treatment of ovarian cancer. Between November 2004 and March 2007, DD levels prior to initial treatment were measured in 72 consecutive patients with presumed epithelial ovarian cancer (final diagnosis: epithelial ovarian cancer, n=60; and epithelial ovarian borderline malignancy, n=12). Venous ultrasound imaging (VUI) of the lower extremity was conducted for all patients except for two patients in whom DVT was detected by pelvic computed tomography (CT). When DVT was found, pulmonary scintigraphy was subsequently performed to ascertain presence of PTE. D-dimer levels were above the cut-off value (0.5 μg ml−1) in 65 of 72 patients (90.2%). Venous ultrasound imaging or CT revealed DVT in 18 of 72 patients (25.0%) and pulmonary scintigraphy found PTE in 8 patients (11.1%). All patients with VTE were asymptomatic when VTE was found. D-dimer levels were associated with incidence of VTE (0–1.4 μg ml−1; 0 of 26 (0%), 1.5–7.4 μg ml−1; 9 of 30 (30%) and ⩾7.5 μg ml−1; 9 of 16 (56.3%), P for trend=0.0003). However, even if 1.5 μg ml−1 was used as a cut-off value, this had low specificity and positive predictive value (47.2, 38.3%), though it had high sensitivity and negative predictive value (100, 100%). Therefore, ovarian cancer patients with DD level ⩾1.5 μg ml−1 should be examined using VUI to detect silent DVT. Patients with VTE underwent preventive managements including anticoagulant therapy before initial treatment, chemotherapy or surgery, and after surgery. There was no clinical onset of postoperative VTE in all 72 patients. Measurement of DD levels and subsequent ultrasonography revealed that silent or subclinical VTE frequently occurs before surgery in ovarian cancer. The usefulness of preoperative assessment of VTE needs further confirmation in randomised controlled trials.
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Affiliation(s)
- T Satoh
- Department of Obstetrics and Gynecology, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan.
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43
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Tatematsu Y, Saito T, Watanabe O, Machida N, Kaitsuka T, Kamata Y, Nakamura M, Yamaguchi Y, Minami R, Kubo S, Shimozuma T, Saigusa M, Imai T, Cho T. Recent Development of Transmission Systems for ECRH in the GAMMA 10 Tandem Mirror. Fusion Science and Technology 2007. [DOI: 10.13182/fst07-a1415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Saito
- Research Center for Developement of Far-Infrared Region, University of Fukui, Fukui 910-8507, Japan
| | - O. Watanabe
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - N. Machida
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kaitsuka
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Kamata
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Nakamura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Yamaguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kubo
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M Saigusa
- Faculty of Engineering, Ibaraki University, Hitachi, Ibaraki 316-8511, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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44
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Minami R, Tatematsu Y, Imai T, Watanabe O, Endo Y, Machida N, Kaitsuka T, Kamata Y, Harigae M, Nakamura M, Kiuchi S, Sakagoshi Y, Yoshizawa A, Saigusa M, Kariya T, Mitsunaka Y, Cho T. Study of Efficient Electron Cyclotron Wave Coupling with Grooved Mirror Polarizer in the GAMMA 10 Tandem Mirror. Fusion Science and Technology 2007. [DOI: 10.13182/fst07-a1416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Minami
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - O. Watanabe
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Endo
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - N. Machida
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kaitsuka
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Kamata
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Harigae
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Nakamura
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kiuchi
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Sakagoshi
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - A. Yoshizawa
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Saigusa
- Faculty of Engineering, Ibaraki University, Ibaraki 316-8511, Japan
| | - T. Kariya
- Toshiba Electron Tubes & Devices Co., Ltd, Tochigi 324-8550, Japan
| | - Y. Mitsunaka
- Toshiba Electron Tubes & Devices Co., Ltd, Tochigi 324-8550, Japan
| | - T. Cho
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
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45
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Hirata M, Cho T, Kohagura J, Numakura T, Shimizu K, Ito M, Kiminami S, Morimoto N, Hirai K, Yamagishi T, Ikuno T, Namiki S, Miyata Y, Minami R, Ogura K, Kondoh T, Kariya T, Imai T, Miyoshi S. Study of the Effects of Plasma-Confining Potentials Using End-Loss Analysing Systems. Fusion Science and Technology 2007. [DOI: 10.13182/fst07-a1345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Shimizu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ito
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kiminami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - N. Morimoto
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Hirai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Yamagishi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Ikuno
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Namiki
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Miyata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ogura
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - T. Kondoh
- Japan Atomic Energy Agency, Naka, Ibaraki, Japan
| | - T. Kariya
- Toshiba Electron Tubes and Devices, Tochigi, Japan
| | - T. Imai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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46
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Kohagura J, Cho T, Hirata M, Numakura T, Tomii Y, Kiminami S, Morimoto N, Shimizu K, Ito M, Ikuno T, Namiki S, Hirai K, Yamagishi T, Miyata Y, Minami R, Ogura K, Kariya T, Imai T, Miyoshi S. Investigation of Electron Distribution Functions in the Plug Region of the GAMMA 10 Tandem Mirror. Fusion Science and Technology 2007. [DOI: 10.13182/fst07-a1351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tomii
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kiminami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - N. Morimoto
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Shimizu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ito
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Ikuno
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Namiki
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Hirai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Yamagishi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Miyata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ogura
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - T. Kariya
- Toshiba Electron Tubes and Devices, Tochigi, Japan
| | - T. Imai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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Kamata Y, Imai T, Tatematsu Y, Watanabe O, Minami R, Saito T, Sakamoto K, Kariya T, Mitsunaka Y, Machida N, Kaitsuka T, Nakamura M, Numakura T, Cho T. Characteristics of 28 GHz Gyrotron for ECRH on GAMMA 10. Fusion Science and Technology 2007. [DOI: 10.13182/fst07-a1419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Kamata
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - O. Watanabe
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Saito
- Research Center for Development of Far-infrared Region, University of Fukui, Fukui, Japan
| | - K. Sakamoto
- Japan Atomic Energy Agency-Naka, Naka, Ibaraki, Japan
| | - T. Kariya
- Toshiba Electron Tubes & Devices Co., Ltd, Otawara, Tochigi, Japan
| | - Y. Mitsunaka
- Toshiba Electron Tubes & Devices Co., Ltd, Otawara, Tochigi, Japan
| | - N. Machida
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kaitsuka
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Nakamura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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Kasugai A, Minami R, Takahashi K, Kobayashi N, Sakamoto K. Long pulse operation of 170GHz ITER gyrotron by beam current control. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.07.077] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Cho T, Kohagura J, Numakura T, Hirata M, Higaki H, Hojo H, Ichimura M, Ishii K, Islam KM, Itakura A, Katanuma I, Minami R, Nakashima Y, Saito T, Tatematsu Y, Watanabe O, Yoshikawa M, Kojima A, Miyake Y, Miyata Y, Shimizu K, Tomii Y, Yoshida M, Sakamoto K, Imai T, Pastukhov VP, Miyoshi S. Observation and control of transverse energy-transport barrier due to the formation of an energetic-electron layer with sheared ExB flow. Phys Rev Lett 2006; 97:055001. [PMID: 17026107 DOI: 10.1103/physrevlett.97.055001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2005] [Indexed: 05/12/2023]
Abstract
Off-axis electron-cyclotron heating in an axisymmetric barrier mirror produces a cylindrical layer with energetic electrons, which flow through the central cell and into the end region. The layer, producing a localized bumped ambipolar potential Phi(C), forms a strong shear of radial electric fields E(r) and peaked vorticity with the direction reversal of E(r)xB sheared flow near the Phi(C) peak. Intermittent vortexlike turbulent structures near the layer are suppressed in the central cell by this actively produced transverse energy-transport barrier; this results in T(e) and T(i) rises surrounded by the layer.
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Affiliation(s)
- T Cho
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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Sakamoto K, Takahashi K, Kasugai A, Minami R, Kobayashi N, Nishio S, Sato M, Tobita K. Conceptual study of ECH/ECCD system for fusion DEMO plant. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2005.10.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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