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Development of the scintillator-based probe for fast-ion losses in the HL-2A tokamak.
Rev Sci Instrum. 2014 May; 85(5):053502.RS

Abstract

A new scintillator-based lost fast-ion probe (SLIP) has been developed and operated in the HL-2A tokamak [L. W. Yan, X. R. Duan, X. T. Ding, J. Q. Dong, Q. W. Yang, Yi Liu, X. L. Zou, D. Q. Liu, W. M. Xuan, L. Y. Chen, J. Rao, X. M. Song, Y. Huang, W. C. Mao, Q. M. Wang, Q. Li, Z. Cao, B. Li, J. Y. Cao, G. J. Lei, J. H. Zhang, X. D. Li, W. Chen, J. Chen, C. H. Cui, Z. Y. Cui, Z. C. Deng, Y. B. Dong, B. B. Feng, Q. D. Gao, X. Y. Han, W. Y. Hong, M. Huang, X. Q. Ji, Z. H. Kang, D. F. Kong, T. Lan, G. S. Li, H. J. Li, Qing Li, W. Li, Y. G. Li, A. D. Liu, Z. T. Liu, C. W. Luo, X. H. Mao, Y. D. Pan, J. F. Peng, Z. B. Shi, S. D. Song, X. Y. Song, H. J. Sun, A. K. Wang, M. X. Wang, Y. Q. Wang, W. W. Xiao, Y. F. Xie, L. H. Yao, D. L. Yu, B. S. Yuan, K. J. Zhao, G. W. Zhong, J. Zhou, J. C. Yan, C. X. Yu, C. H. Pan, Y. Liu, and the HL-2A Team, Nucl. Fusion 51, 094016 (2011)] to measure the losses of neutral beam ions. The design of the probe is based on the concept of the α-particle detectors on Tokamak Fusion Test Reactor (TFTR) using scintillator plates. The probe is capable of traveling across an equatorial plane port and sweeping the aperture angle rotationally with respect to the axis of the probe shaft by two step motors, in order to optimize the radial position and the collimator angle. The energy and the pitch angle of the lost fast ions can be simultaneously measured if the two-dimensional image of scintillation light intensity due to the impact of the lost fast ions is detected. Measurements of the fast-ion losses using the probe have been performed during HL-2A neutral beam injection discharges. The clear experimental evidence of enhanced losses of beam ions during disruptions has been obtained by means of the SLIP system. A detailed description of the probe system and the first experimental results are reported.

Authors+Show Affiliations

Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610041, China.National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5259, Japan.Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610041, China.Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610041, China.Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

24880364

Citation

Zhang, Y P., et al. "Development of the Scintillator-based Probe for Fast-ion Losses in the HL-2A Tokamak." The Review of Scientific Instruments, vol. 85, no. 5, 2014, p. 053502.
Zhang YP, Liu Y, Luo XB, et al. Development of the scintillator-based probe for fast-ion losses in the HL-2A tokamak. Rev Sci Instrum. 2014;85(5):053502.
Zhang, Y. P., Liu, Y., Luo, X. B., Isobe, M., Yuan, G. L., Liu, Y. Q., Hua, Y., Song, X. Y., Yang, J. W., Li, X., Chen, W., Li, Y., Yan, L. W., Song, X. M., Yang, Q. W., & Duan, X. R. (2014). Development of the scintillator-based probe for fast-ion losses in the HL-2A tokamak. The Review of Scientific Instruments, 85(5), 053502. https://doi.org/10.1063/1.4872385
Zhang YP, et al. Development of the Scintillator-based Probe for Fast-ion Losses in the HL-2A Tokamak. Rev Sci Instrum. 2014;85(5):053502. PubMed PMID: 24880364.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Development of the scintillator-based probe for fast-ion losses in the HL-2A tokamak. AU - Zhang,Y P, AU - Liu,Yi, AU - Luo,X B, AU - Isobe,M, AU - Yuan,G L, AU - Liu,Y Q, AU - Hua,Y, AU - Song,X Y, AU - Yang,J W, AU - Li,X, AU - Chen,W, AU - Li,Y, AU - Yan,L W, AU - Song,X M, AU - Yang,Q W, AU - Duan,X R, PY - 2014/6/2/entrez PY - 2014/6/2/pubmed PY - 2014/6/2/medline SP - 053502 EP - 053502 JF - The Review of scientific instruments JO - Rev Sci Instrum VL - 85 IS - 5 N2 - A new scintillator-based lost fast-ion probe (SLIP) has been developed and operated in the HL-2A tokamak [L. W. Yan, X. R. Duan, X. T. Ding, J. Q. Dong, Q. W. Yang, Yi Liu, X. L. Zou, D. Q. Liu, W. M. Xuan, L. Y. Chen, J. Rao, X. M. Song, Y. Huang, W. C. Mao, Q. M. Wang, Q. Li, Z. Cao, B. Li, J. Y. Cao, G. J. Lei, J. H. Zhang, X. D. Li, W. Chen, J. Chen, C. H. Cui, Z. Y. Cui, Z. C. Deng, Y. B. Dong, B. B. Feng, Q. D. Gao, X. Y. Han, W. Y. Hong, M. Huang, X. Q. Ji, Z. H. Kang, D. F. Kong, T. Lan, G. S. Li, H. J. Li, Qing Li, W. Li, Y. G. Li, A. D. Liu, Z. T. Liu, C. W. Luo, X. H. Mao, Y. D. Pan, J. F. Peng, Z. B. Shi, S. D. Song, X. Y. Song, H. J. Sun, A. K. Wang, M. X. Wang, Y. Q. Wang, W. W. Xiao, Y. F. Xie, L. H. Yao, D. L. Yu, B. S. Yuan, K. J. Zhao, G. W. Zhong, J. Zhou, J. C. Yan, C. X. Yu, C. H. Pan, Y. Liu, and the HL-2A Team, Nucl. Fusion 51, 094016 (2011)] to measure the losses of neutral beam ions. The design of the probe is based on the concept of the α-particle detectors on Tokamak Fusion Test Reactor (TFTR) using scintillator plates. The probe is capable of traveling across an equatorial plane port and sweeping the aperture angle rotationally with respect to the axis of the probe shaft by two step motors, in order to optimize the radial position and the collimator angle. The energy and the pitch angle of the lost fast ions can be simultaneously measured if the two-dimensional image of scintillation light intensity due to the impact of the lost fast ions is detected. Measurements of the fast-ion losses using the probe have been performed during HL-2A neutral beam injection discharges. The clear experimental evidence of enhanced losses of beam ions during disruptions has been obtained by means of the SLIP system. A detailed description of the probe system and the first experimental results are reported. SN - 1089-7623 UR - https://www.unboundmedicine.com/medline/citation/24880364/Development_of_the_scintillator_based_probe_for_fast_ion_losses_in_the_HL_2A_tokamak_ L2 - https://dx.doi.org/10.1063/1.4872385 DB - PRIME DP - Unbound Medicine ER -
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