Design of a new fiber-optical transmission-based fast ion loss probe on Experimental Advanced Superconducting Tokamak

Zhang Wei; Liu Lunan; Zhang Xinjun; Zhu Yongxin; Ogawa K.; Isobe M.; Zhong Liujun; Zhang Huapeng; Jiang Yuhao; Guo Yaoyao; Wang Zhengshuyan; Qiu Sichun; Li Liuxin; Jin Tao

doi:10.1016/j.net.2024.11.001

논문KCI 등재

Design of a new fiber-optical transmission-based fast ion loss probe on Experimental Advanced Superconducting Tokamak

한국원자력학회 (Korean Nuclear Society)|2025.04|Nuclear Engineering and Technology|제57권 제4호|DOI 10.1016/j.net.2024.11.001

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키워드

Probe EAST Fast ion Fiber-optical

주제분류원자력공학

초록

For the first time, a new probe for fast ion loss has been developed for use in the Experimental Advanced Superconducting Tokamak (EAST) and utilizes optical fiber transmission, the aim of the probe is to study fast ion losses triggered by the ion cyclotron range of frequencies (ICRF) heating and neutral beam injection (NBI) synergy. This probe is used to determine the pitch angle and gyroradii of the ion losses based on the particle positions striking the two-dimensional scintillator. In this paper, the calculation and design of the probe scintillator by using the NLSDETSIM code is discussed. The emitted light from the scintillator is captured by a high-speed camera via an optical lens and high-temperature-resistant fibers and then processed by a signal processing system to determine the real-time energy and angle of the fast ion. Due to the flexible nature of the fiber, the probe is capable of measuring the fast ion losses at various locations within the EAST. Furthermore, the probe can be easily installed by using one of the numerous vacuum feeds on the EAST instead of occupying the entire window. This feature enhances the flexibility of the diagnostic technique.

Abstract

For the first time, a new probe for fast ion loss has been developed for use in the Experimental Advanced Superconducting Tokamak (EAST) and utilizes optical fiber transmission, the aim of the probe is to study fast ion losses triggered by the ion cyclotron range of frequencies (ICRF) heating and neutral beam injection (NBI) synergy. This probe is used to determine the pitch angle and gyroradii of the ion losses based on the particle positions striking the two-dimensional scintillator. In this paper, the calculation and design of the probe scintillator by using the NLSDETSIM code is discussed. The emitted light from the scintillator is captured by a high-speed camera via an optical lens and high-temperature-resistant fibers and then processed by a signal processing system to determine the real-time energy and angle of the fast ion. Due to the flexible nature of the fiber, the probe is capable of measuring the fast ion losses at various locations within the EAST. Furthermore, the probe can be easily installed by using one of the numerous vacuum feeds on the EAST instead of occupying the entire window. This feature enhances the flexibility of the diagnostic technique.

관련 논문AI추천

Investigation of the ICRF waves heating using the high field side B-dot probe in EAST tokamakAi Lin, Liu Lunan, Qin Chengming, Zhang Wei, Zhang Xinjun한국원자력학회 · Nuclear Engineering and Technology2025 · 제57권 제7호 A new Langmuir probe design to measure plasma properties and toroidal correlations on the EASTAntar Ghassan, Jiang Yuhao, Li Liangliang, Li Liuxin, Liu Lunan, Qin Chengming, Qiu Sichun, Wang Zhengshuyan, Yan Ning, Zhang Huapeng, Zhang Wei, Zhang Xinjun한국원자력학회 · Nuclear Engineering and Technology2024 · 제56권 제11호 Measurement of the ICRH antenna phasing using antenna strap probe based diagnostic system in EAST tokamakCheng Y., Liang Q.C., Liu L.N., Mao Y.Z., Qin C.M., Wang L., Yang H., Yuan S., Zhang K., Zhang W., Zhang X.J., Zhao Y.P., Zhu G.H.한국원자력학회 · Nuclear Engineering and Technology2022 · 제54권 제10호 Experimental investigation on effect of ion cyclotron resonance heating on density fluctuation in SOL at EASTB. J. Ding, C.B. Wu, C.M. Qin, F. K. Liu, J.C. Xu, J. F. Shan, L. Liu, L.N. Liu, M.H. Li, M. Wang, T. Zhang, X. D. Lin, X. Gao, X.J. Zhang, Y.C. Li, Y.F. Wang, Y. P. Zhao한국원자력학회 · Nuclear Engineering and Technology2022 · 제54권 제1호 Design of power and phase feedback control system for ion cyclotron resonance heating in the Experimental Advanced Superconducting TokamakCheng Y., Liu L.N., Mao Y.Z., Qin C.M., Wang L., Yang H., Yuan S., Zhang K., Zhang W., Zhang X.J., Zhao Y.P., Zheng W.M., Zhu G.H.한국원자력학회 · Nuclear Engineering and Technology2024 · 제56권 제1호 Active control of amplitude and phase of high-power RF systems in EAST ICRF heating experimentsAi Lin, Cheng Yan, Guo Yaoyao, Jiang Runhao, Ju Songqing, Li Hang, Liu Lunan, Luo Jingting, Mao Yuzhou, Qin Chengming, Sun Xuan, Wang Jinxin, Wang Lei, Wang Yongsheng, Yang Hua, Yang Zhida, Yuan Shuai, Zhang Wei, Zhang Xinjun, Zhu Guanghui한국원자력학회 · Nuclear Engineering and Technology2023 · 제55권 제2호

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