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Wirawan R, Angraini LM, Qomariyah N, Waris A, Djamal M. Gamma backscattering analysis of flaw types and orientation based on Monte Carlo GEANT4 simulations. Appl Radiat Isot 2019; 155:108924. [PMID: 31600632 DOI: 10.1016/j.apradiso.2019.108924] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 09/15/2019] [Accepted: 10/02/2019] [Indexed: 11/26/2022]
Abstract
In this study, we modeled the effects of flaws in a solid material as three different slit types (rectangular, rectilinear, and semicircular) and their orientations in a duralumin (aluminum alloy) plate in simulations based on 137Cs gamma backscattering. The simulations were performed using the Monte Carlo GEANT4 simulation toolkit. The simulation results showed that the shape of the slit had a small effect on the backscattering peak curve. Rotating the slit on the Y-axis and Z-axis of the duralumin plate influenced the 137Cs backscattering peak height in the energy range from 0.185 to 0.20 MeV, where the backscattering peak areas exhibited specific patterns due to the slit orientations.
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Affiliation(s)
- R Wirawan
- Department of Physics, FMIPA, University of Mataram, Jl. Majapahit 62, Mataram, 83125, Indonesia.
| | - L M Angraini
- Department of Physics, FMIPA, University of Mataram, Jl. Majapahit 62, Mataram, 83125, Indonesia
| | - N Qomariyah
- Department of Physics, FMIPA, University of Mataram, Jl. Majapahit 62, Mataram, 83125, Indonesia
| | - A Waris
- Department of Physics, FMIPA, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung, 40132, Indonesia
| | - M Djamal
- Department of Physics, FMIPA, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung, 40132, Indonesia
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Adhikari G, Adhikari P, de Souza EB, Carlin N, Choi S, Djamal M, Ezeribe AC, Ha C, Hahn IS, Jeon EJ, Jo JH, Joo HW, Kang WG, Kang W, Kauer M, Kim GS, Kim H, Kim HJ, Kim KW, Kim NY, Kim SK, Kim YD, Kim YH, Ko YJ, Kudryavtsev VA, Lee HS, Lee J, Lee JY, Lee MH, Leonard DS, Lynch WA, Maruyama RH, Mouton F, Olsen SL, Park BJ, Park HK, Park HS, Park KS, Pitta RLC, Prihtiadi H, Ra SJ, Rott C, Shin KA, Scarff A, Spooner NJC, Thompson WG, Yang L, Yu GH. Search for a Dark Matter-Induced Annual Modulation Signal in NaI(Tl) with the COSINE-100 Experiment. Phys Rev Lett 2019; 123:031302. [PMID: 31386435 DOI: 10.1103/physrevlett.123.031302] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Indexed: 06/10/2023]
Abstract
We present new constraints on the dark matter-induced annual modulation signal using 1.7 years of COSINE-100 data with a total exposure of 97.7 kg yr. The COSINE-100 experiment, consisting of 106 kg of NaI(Tl) target material, is designed to carry out a model-independent test of DAMA/LIBRA's claim of WIMP discovery by searching for the same annual modulation signal using the same NaI(Tl) target. The crystal data show a 2.7 cpd/kg/keV background rate on average in the 2-6 keV energy region of interest. Using a χ-squared minimization method we observe best fit values for modulation amplitude and phase of 0.0092±0.0067 cpd/kg/keV and 127.2±45.9 d, respectively.
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Affiliation(s)
- G Adhikari
- Department of Physics, Sejong University, Seoul 05006, Republic of Korea
| | - P Adhikari
- Department of Physics, Sejong University, Seoul 05006, Republic of Korea
| | - E Barbosa de Souza
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - N Carlin
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - S Choi
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - M Djamal
- Department of Physics, Bandung Institute of Technology, Bandung 40132, Indonesia
| | - A C Ezeribe
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - C Ha
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - I S Hahn
- Department of Science Education, Ewha Womans University, Seoul 03760, Republic of Korea
| | - E J Jeon
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - J H Jo
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - H W Joo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - W G Kang
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - W Kang
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - M Kauer
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - G S Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - H Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - H J Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - K W Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - N Y Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S K Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - Y D Kim
- Department of Physics, Sejong University, Seoul 05006, Republic of Korea
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Y H Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
- Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
| | - Y J Ko
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - V A Kudryavtsev
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - H S Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - J Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - J Y Lee
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - M H Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - D S Leonard
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - W A Lynch
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - R H Maruyama
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - F Mouton
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - S L Olsen
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - B J Park
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - H K Park
- Department of Accelerator Science, Korea University, Sejong 30019, Republic of Korea
| | - H S Park
- Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
| | - K S Park
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - R L C Pitta
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - H Prihtiadi
- Department of Physics, Bandung Institute of Technology, Bandung 40132, Indonesia
| | - S J Ra
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - C Rott
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - K A Shin
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - A Scarff
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - N J C Spooner
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - W G Thompson
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - L Yang
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - G H Yu
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
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Ha C, Adhikari G, Adhikari P, Barbosa de Souza E, Carlin N, Choi S, Djamal M, Ezeribe AC, Hahn IS, Jeon EJ, Jo JH, Joo HW, Kang WG, Kang W, Kauer M, Kim GS, Kim H, Kim HJ, Kim KW, Kim NY, Kim SK, Kim YD, Kim YH, Ko YJ, Kudryavtsev VA, Lee HS, Lee J, Lee JY, Lee MH, Leonard DS, Lynch WA, Maruyama RH, Mouton F, Olsen SL, Park BJ, Park HK, Park HS, Park KS, Pitta RLC, Prihtiadi H, Ra SJ, Rott C, Shin KA, Scarff A, Spooner NJC, Thompson WG, Yang L, Yu GH. First Direct Search for Inelastic Boosted Dark Matter with COSINE-100. Phys Rev Lett 2019; 122:131802. [PMID: 31012610 DOI: 10.1103/physrevlett.122.131802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Indexed: 06/09/2023]
Abstract
A search for inelastic boosted dark matter (IBDM) using the COSINE-100 detector with 59.5 days of data is presented. This relativistic dark matter is theorized to interact with the target material through inelastic scattering with electrons, creating a heavier state that subsequently produces standard model particles, such as an electron-positron pair. In this study, we search for this electron-positron pair in coincidence with the initially scattered electron as a signature for an IBDM interaction. No excess over the predicted background event rate is observed. Therefore, we present limits on IBDM interactions under various hypotheses, one of which allows us to explore an area of the dark photon parameter space that has not yet been covered by other experiments. This is the first experimental search for IBDM using a terrestrial detector.
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Affiliation(s)
- C Ha
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - G Adhikari
- Department of Physics, Sejong University, Seoul 05006, Republic of Korea
| | - P Adhikari
- Department of Physics, Sejong University, Seoul 05006, Republic of Korea
| | - E Barbosa de Souza
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - N Carlin
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - S Choi
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - M Djamal
- Department of Physics, Bandung Institute of Technology, Bandung 40132, Indonesia
| | - A C Ezeribe
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - I S Hahn
- Department of Science Education, Ewha Womans University, Seoul 03760, Republic of Korea
| | - E J Jeon
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - J H Jo
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - H W Joo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - W G Kang
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - W Kang
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - M Kauer
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - G S Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - H Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - H J Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - K W Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - N Y Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S K Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - Y D Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- Department of Physics, Sejong University, Seoul 05006, Republic of Korea
| | - Y H Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
- Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
| | - Y J Ko
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - V A Kudryavtsev
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - H S Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - J Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - J Y Lee
- Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
| | - M H Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - D S Leonard
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - W A Lynch
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - R H Maruyama
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - F Mouton
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - S L Olsen
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - B J Park
- IBS School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - H K Park
- Department of Accelerator Science, Korea University, Sejong 30019, Republic of Korea
| | - H S Park
- Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
| | - K S Park
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - R L C Pitta
- Physics Institute, University of São Paulo, 05508-090, São Paulo, Brazil
| | - H Prihtiadi
- Department of Physics, Bandung Institute of Technology, Bandung 40132, Indonesia
| | - S J Ra
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - C Rott
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - K A Shin
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - A Scarff
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - N J C Spooner
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - W G Thompson
- Department of Physics and Wright Laboratory, Yale University, New Haven, Connecticut 06520, USA
| | - L Yang
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - G H Yu
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
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Adhikari P, Adhikari G, Souza EBD, Carlin N, Choi S, Choi WQ, Djamal M, Ezeribe AC, Ha C, Hahn IS, Hubbard AJF, Jeon EJ, Jo JH, Joo HW, Kang WG, Kauer M, Kang WS, Kim BH, Kim H, Kim HJ, Kim KW, Kim MC, Kim NY, Kim SK, Kim YD, Kim YH, Kudryavtsev VA, Lee HS, Lee J, Lee JY, Lee MH, Leonard DS, Lynch WA, Maruyama RH, Mouton F, Olsen SL, Park HK, Park HS, Park JS, Park KS, Pettus W, Prihtiadi H, Ra S, Rott C, Scarff A, Spooner NJC, Thompson WG, Yang L, Yong SH. Background model for the NaI(Tl) crystals in COSINE-100. Eur Phys J C Part Fields 2018; 78:490. [PMID: 30956554 PMCID: PMC6424159 DOI: 10.1140/epjc/s10052-018-5970-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 06/01/2018] [Indexed: 06/09/2023]
Abstract
The COSINE-100 dark matter search experiment is an array of NaI(Tl) crystal detectors located in the Yangyang Underground Laboratory (Y2L). To understand measured backgrounds in the NaI(Tl) crystals we have performed Monte Carlo simulations using the Geant4 toolkit and developed background models for each crystal that consider contributions from both internal and external sources, including cosmogenic nuclides. The background models are based on comparisons of measurement data with Monte Carlo simulations that are guided by a campaign of material assays and are used to evaluate backgrounds and identify their sources. The average background level for the six crystals (70 kg total mass) that are studied is 3.5 counts/day/keV/kg in the (2-6) keV energy interval. The dominant contributors in this energy region are found to be 210 Pb and 3 H.
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Affiliation(s)
- P. Adhikari
- Department of Physics and Astronomy, Sejong University, Seoul, 05006 South Korea
| | - G. Adhikari
- Department of Physics and Astronomy, Sejong University, Seoul, 05006 South Korea
| | - E. Barbosa de Souza
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520 USA
| | - N. Carlin
- Physics Institute, University of São Paulo, São Paulo, 05508-090 Brazil
| | - S. Choi
- Department of Physics and Astronomy, Seoul National University, Seoul, 08826 Republic of Korea
| | - W. Q. Choi
- Korea Institue of Science and Technology Information, Daejeon, 34141 Republic of Korea
| | - M. Djamal
- Department of Physics, Bandung Institute of Technology, Bandung, 40132 Indonesia
| | - A. C. Ezeribe
- Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH UK
| | - C. Ha
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - I. S. Hahn
- Department of Science Education, Ewha Womans University, Seoul, 03760 Republic of Korea
| | - A. J. F. Hubbard
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520 USA
| | - E. J. Jeon
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - J. H. Jo
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520 USA
| | - H. W. Joo
- Department of Physics and Astronomy, Seoul National University, Seoul, 08826 Republic of Korea
| | - W. G. Kang
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - M. Kauer
- Department of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin-Madison, Madison, WI 53706 USA
| | - W. S. Kang
- Department of Physics, Sungkyunkwan University, Seoul, 16419 Republic of Korea
| | - B. H. Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - H. Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - H. J. Kim
- Department of Physics, Kyungpook National University, Daegu, 41566 Republic of Korea
| | - K. W. Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - M. C. Kim
- Department of Physics, Sungkyunkwan University, Seoul, 16419 Republic of Korea
| | - N. Y. Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - S. K. Kim
- Department of Physics and Astronomy, Seoul National University, Seoul, 08826 Republic of Korea
| | - Y. D. Kim
- Department of Physics and Astronomy, Sejong University, Seoul, 05006 South Korea
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - Y. H. Kim
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
- Korea Research Institute of Standards and Science, Daejeon, 34113 Republic of Korea
| | - V. A. Kudryavtsev
- Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH UK
| | - H. S. Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - J. Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - J. Y. Lee
- Department of Physics and Astronomy, Seoul National University, Seoul, 08826 Republic of Korea
| | - M. H. Lee
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - D. S. Leonard
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - W. A. Lynch
- Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH UK
| | - R. H. Maruyama
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520 USA
| | - F. Mouton
- Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH UK
| | - S. L. Olsen
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - H. K. Park
- Department of Accelerator Science, Graduate School, Korea University, Sejong, 30019 South Korea
| | - H. S. Park
- Korea Research Institute of Standards and Science, Daejeon, 34113 Republic of Korea
| | - J. S. Park
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - K. S. Park
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - W. Pettus
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520 USA
| | - H. Prihtiadi
- Department of Physics, Bandung Institute of Technology, Bandung, 40132 Indonesia
| | - S. Ra
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
| | - C. Rott
- Department of Physics, Sungkyunkwan University, Seoul, 16419 Republic of Korea
| | - A. Scarff
- Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH UK
| | - N. J. C. Spooner
- Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH UK
| | - W. G. Thompson
- Wright Laboratory, Department of Physics, Yale University, New Haven, CT 06520 USA
| | - L. Yang
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana IL, 61801 USA
| | - S. H. Yong
- Center for Underground Physics, Institute for Basic Science (IBS), Daejeon, 34126 Republic of Korea
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Jin T, Watanabe K, Prayogi IA, Takita A, Mitatha S, Djamal M, Jia HZ, Hou WM, Fujii Y. High-speed impact test using an inertial mass and an optical interferometer. Rev Sci Instrum 2013; 84:075116. [PMID: 23902115 DOI: 10.1063/1.4816537] [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: 06/02/2023]
Abstract
A high-speed impact testing method for evaluating mechanical properties of materials is proposed using an inertial mass and a dual beat-frequencies laser Doppler interferometer (DB-LDI). In this method, an inertial mass levitated using an aerostatic linear bearing is made to collide with the material being tested at a high initial velocity. During the collision, the velocity of the mass, which is even higher than the critical velocity (±0.56 m/s) defined by the frequency difference of the Zeeman laser, is accurately measured using the DB-LDI. The position, acceleration, and impact force of the mass are calculated from the measured velocity. Using the proposed method, the mechanical properties of a visco-elastic material under a high-speed impact loading condition can be accurately evaluated.
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Affiliation(s)
- T Jin
- School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
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