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Liang C, Liu Z, Yuan JS, Li Y, Gu Y, Huang D, Lu S, Zuo GZ, Hu JS, Feng Y. Safety factor diagnostic for tokamak core plasma from three-dimensional reconstruction of pellet ablation trail. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2024; 95:043502. [PMID: 38563715 DOI: 10.1063/5.0198109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/14/2024] [Indexed: 04/04/2024]
Abstract
Using a stereo camera system, a new diagnostic for the safety factor of the core plasma based on the pellet ablation trail is applied on the Experimental Advanced Superconducting Tokamak (EAST). In EAST discharge No. 128 874, a shattered pellet injection system is applied to inject a shattered neon pellet into the EAST. Since the strong magnetic field in tokamaks binds the ablated pellet material, the orientation of the pellet ablation trail is the same as the local magnetic field direction. Thus, from the three-dimensional reconstruction result of the pellet ablation trail, the local safety factor q can be obtained. The motional Stark effect (MSE) diagnostic is applied to determine the safety factor q profile in this shot. The determined safety factor q results for this new diagnostic are in quantitative agreement with those from the MSE diagnostic with the mean relative difference of only 6.8%, confirming the effectiveness of this new diagnostic of the safety factor.
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Affiliation(s)
- Chen Liang
- Institute of Plasma Physics and Technology, Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China
| | - Zhuang Liu
- Institute of Plasma Physics and Technology, Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China
| | - J S Yuan
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Yichao Li
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Yongqi Gu
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Dong Huang
- Institute of Plasma Physics and Technology, Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China
| | - Shaoyu Lu
- Institute of Plasma Physics and Technology, Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China
| | - G Z Zuo
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - J S Hu
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Yan Feng
- Institute of Plasma Physics and Technology, Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou 215006, China
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Donné AJH, Barth CJ, Weisen H. Chapter 4: Laser-Aided Plasma Diagnostics. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst08-a1676] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. J. H. Donné
- Association EURATOM-FOM FOM-Institute for Plasma Physics Rijnhuizen, Partner in the Trilateral Euregio Cluster P.O. Box 1207, 3430 BE Nieuwegein, The Netherlands
| | - C. J. Barth
- Association EURATOM-FOM FOM-Institute for Plasma Physics Rijnhuizen, Partner in the Trilateral Euregio Cluster P.O. Box 1207, 3430 BE Nieuwegein, The Netherlands
| | - H. Weisen
- Centre de Recherches en Physique des Plasmas, Association EURATOM-Suisse Ecole Polytechnique Fédérale de Lausanne, EPFL, 1015 Lausanne, Switzerland
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Bhattacharjee A, Ma ZW, Wang X. Impulsive reconnection dynamics in collisionless laboratory and space plasmas. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1998ja900094] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wróblewski D, Snider RT. Evidence of the complete magnetic reconnection during a sawtooth collapse in a tokamak. PHYSICAL REVIEW LETTERS 1993; 71:859-862. [PMID: 10055386 DOI: 10.1103/physrevlett.71.859] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Levinton FM, Batha SH, Yamada M, Zarnstorff MC. q‐profile measurements in the Tokamak Fusion Test Reactor*. ACTA ACUST UNITED AC 1993. [DOI: 10.1063/1.860743] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Bondeson A, Vlad G, Lütjens H. Resistive toroidal stability of internal kink modes in circular and shaped tokamaks. ACTA ACUST UNITED AC 1992. [DOI: 10.1063/1.860041] [Citation(s) in RCA: 97] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Huang LK, Finkenthal M, Wróblewski D, Moos HW, West WP, Phillips PE, Sing DC. Safety factor measurements on the magnetic axis of the Texas experimental tokamak plasma in Ohmic and electron-cyclotron-resonance heated discharges. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 45:1089-1097. [PMID: 9907075 DOI: 10.1103/physreva.45.1089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Goetz JA, Dexter RN, Prager SC. Total-magnetic reconnection during a major disruption in a tokamak. PHYSICAL REVIEW LETTERS 1991; 66:608-611. [PMID: 10043853 DOI: 10.1103/physrevlett.66.608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Weisen H, Appert K, Borg GG, Joye B, Knight AJ, Lister JB, Vaclavik J. Mode conversion to the kinetic Alfvén wave in low-frequency heating experiments in the TCA tokamak. PHYSICAL REVIEW LETTERS 1989; 63:2476-2479. [PMID: 10040898 DOI: 10.1103/physrevlett.63.2476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Levinton FM, Fonck RJ, Gammel GM, Kaita R, Kugel HW, Powell ET, Roberts DW. Magnetic field pitch-angle measurments in the PBX-M tokamak using the motional Stark effect. PHYSICAL REVIEW LETTERS 1989; 63:2060-2063. [PMID: 10040752 DOI: 10.1103/physrevlett.63.2060] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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