Status of the two-dimensional, multi-wire proportional chamber detector for the China Spallation Neutron Source

doi:10.1142/s2010194518601217

	Status of the two-dimensional, multi-wire proportional chamber detector for the China Spallation Neutron Source
	Qi, Huirong; Wen, Zhiwen; Qi HR(祁辉荣)
刊名	International Journal of Modern Physics-Conference Series
	2018
卷号	48 页码:UNSP 1860121
关键词	Multi-wire proportional chamber Position resolution
ISSN号	2010-1945
DOI	10.1142/s2010194518601217
文献子类	Proceedings Paper
英文摘要	The re-designed two-dimensional, multi-wire proportional chamber (MWPC) detector based on the He-3 operation gas has been developed for the multifunctional reflection spectrum detection requirements in China Spallation Neutron Source (CSNS), which is under construction in Guangdong province, China. This efficient thermal neutron detector with large area (200 mm x 200 mm active area), two-dimensional position sensitive (<2 mm of position resolution), high detection efficiency (>65% in the wavelength of 1.8 angstrom) and good n/gamma discrimination would meet some requirements in CSNS. The neutron detector consists of a MWPC detector and a high-pressure gas vessel. The wire readout structures of the detector and the gas purity device have been optimized based on previous design and testing. The re-designed MWPC detector with an absorber thickness of 10 mm and 8.5 atm operating gas mixture of He-3 and C3H8 was constructed. Using the non-return valve manufactured by Swagelok, the gas purity device was developed to clean the water and remove gas impurities. The effective cycle time can be up to 50 min per sequence. The performance of the position resolution and the two-dimensional imaging accuracy by the traditional center of gravity readout method was studied with an X-ray radiation source and the neutron source. At the end of this year, the detector will be mounted at CSNS and studied using the neutron source.
会议地点	Crete, GREECE
WOS研究方向	Nuclear Science & Technology ; Physics
语种	英语
WOS记录号	WOS:000460531300019
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286735]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Qi, Huirong,Wen, Zhiwen,Qi HR. Status of the two-dimensional, multi-wire proportional chamber detector for the China Spallation Neutron Source[J]. International Journal of Modern Physics-Conference Series,2018,48:UNSP 1860121.
APA	Qi, Huirong,Wen, Zhiwen,&祁辉荣.(2018).Status of the two-dimensional, multi-wire proportional chamber detector for the China Spallation Neutron Source.International Journal of Modern Physics-Conference Series,48,UNSP 1860121.
MLA	Qi, Huirong,et al."Status of the two-dimensional, multi-wire proportional chamber detector for the China Spallation Neutron Source".International Journal of Modern Physics-Conference Series 48(2018):UNSP 1860121.