Saturation curves of low-voltage ionization chamber for ITER at 10-30 keV

doi:10.1016/j.nima.2021.165324

	Saturation curves of low-voltage ionization chamber for ITER at 10-30 keV
	Li, Chaozhi 1,2; Zhang, Jizong 2; Chen, Kaiyun 2; Hu, Liqun 2; Zhao, Jinlong 2; Cao, Hongrui 2; Zhang, Zijun 2
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
	2021-07-01
卷号	1003
关键词	Low voltage ionization chamber Saturation curves Synchrotron radiation ITER
ISSN号	0168-9002
DOI	10.1016/j.nima.2021.165324
通讯作者	Zhang, Jizong(jzzhang@ipp.ac.cn) ; Chen, Kaiyun(kychen@ipp.ac.cn)
英文摘要	A low voltage ionization chamber (LVIC) is a very promising alternative to ITER X-ray detectors owing to its outstanding radiation tolerance. To investigate the characteristics of the LVIC preliminary prototype and evaluate its application in ITER, the saturation curves corresponding to 10-30 keV monochromatic radiations were measured in the Shanghai Synchrotron Radiation Facility. In the saturation region, the output current variation was linear with respect to input power, indicating that the LVIC can be used to detect X-ray emissions. Based on the saturation curves and related simulation, it is speculated that the saturation voltages needed for LVICs of the external and internal cameras in ITER might be no greater than 150 V and 300 V respectively. Responsivity (R) derived from experimental results was compared with theoretical calculations, showing good agreement at 15-20 keV, but significant deviations at 10 keV and 30 keV, which will be studied in the future. It is estimated that R of the LVIC ranges from 2.66 x 10(-2) to 1.89 x 10(-3) A/W between 10 to 30 keV. The experimental results show promising potential for LVIC application in ITER as an X-ray detector.
资助项目	National Key R&D Program of China[2017YFE0300503] ; National Natural Science Foundation of China[11605243]
WOS关键词	RECOMBINATION
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000646751400006
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/122215]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Jizong; Chen, Kaiyun
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Li, Chaozhi,Zhang, Jizong,Chen, Kaiyun,et al. Saturation curves of low-voltage ionization chamber for ITER at 10-30 keV[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2021,1003.
APA	Li, Chaozhi.,Zhang, Jizong.,Chen, Kaiyun.,Hu, Liqun.,Zhao, Jinlong.,...&Zhang, Zijun.(2021).Saturation curves of low-voltage ionization chamber for ITER at 10-30 keV.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,1003.
MLA	Li, Chaozhi,et al."Saturation curves of low-voltage ionization chamber for ITER at 10-30 keV".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 1003(2021).