Development of hard X-ray spectrometer with full digital data acquisition for runaway electron studies at HL-2M

被引：4
|
作者：
Cheng, Shikui [1 ]
Zhang, Jie [1 ]
Zhang, Yipo [1 ]
He, Li [2 ]
Xu, Hongbing [1 ]
Zhu, Yuxuan [1 ]
Zhan, Xuwen [1 ]
Shi, Zhongbing [1 ]
Zhong, Wulv [1 ]
机构：
[1] Southwestern Inst Phys, Chengdu 610041, Sichuan, Peoples R China
[2] Chengdu Univ Technol, Coll Nucl Technol & Automat Engn, Chengdu 610059, Sichuan, Peoples R China
来源：
JOURNAL OF INSTRUMENTATION | 2023年 / 18卷 / 02期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Nuclear instruments and methods for hot plasma diagnostics; Gamma detectors (scin- tillators; CZT; HPGe; HgI etc); X-ray detectors; DISRUPTIONS; BEHAVIOR;
D O I：
10.1088/1748-0221/18/02/T02006
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The development of hard X-ray (HXR) spectrometers with full digital data acquisition for runaway electron studies on the HL-2M tokamak is presented. Consisting of large-sized NaI:Tl detectors and high-performance multichannel analyzers, this system can realize the measurement of HXR with energies ranging from 0.5 to 10 MeV, and spectrum temporal resolution of 1 ms. An average energy resolution of 56 keV at 662 keV has been achieved at counts rates of about 100 kcps. The spectra data is acquired by a digital-based data acquisition system with fast digitization and software signal processing technology. The energy calibrations are performed by using several radioisotope gamma-ray sources, and the detection efficiencies are simulated by MCNP code. First experimental results from HL-2M Ohmic discharges are presented in this paper.
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页数：12
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