Chinese Physics C > 2012, Vol. 36 > Issue(6): 525-530 DOI: 10.1088/1674-1137/36/6/008

Developments of a 2D position sensitiveneutron detector

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China Spallation Neutron Source (CSNS), one project of the 12 ^thFive-Year-Plan scheme of China, is under construction in Guangdong province. Three neutron spectrometers will be installed during the first phase of the project, and two-dimensional position sensitive thermal neutron detectors are required. Before the construction of the neutron detectors, a prototype of a two-dimensional 200 mm×200 mm Multi-wire Proportional Chamber (MWPC) with Ar/CO ₂(90/10) flowing gas has been constructed. In 2009, the prototype was tested with the ⁵⁵Fe X-ray using part of the electronics, and performed well.
Following the test in 2009, the neutron detector was constructed with the complete electronics and filled with the 6 atm. ³He+2.5 atm. C ₃H ₈gas mixture in 2010. The neutron detector has been primarily tested with an Am-Be source. In this paper, new developments of the neutron detector including the design of the high pressure chamber, the optimization of the gas purifying system and the gas filling process will be reported. The results and discussion are also presented in this paper.

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TIAN Li-Chao, TANG Bin, WANG Xiao-Hu, LIU Rong-Guang, ZHANG Jian, CHEN Yuan-Bo, SUN Zhi-Jia, XU Hong, YANG Gui-An and ZHANG Qiang. Developments of a 2D position sensitiveneutron detector[J]. Chinese Physics C, 2012, 36(6): 525-530. doi: 10.1088/1674-1137/36/6/008

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Received: 2011-08-29
Revised: 2011-10-18

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Developments of a 2D position sensitiveneutron detector

Corresponding author:TIAN Li-Chao,

Corresponding author:SUN Zhi-Jia,

Received Date:2011-08-29

Accepted Date:2011-10-18

Available Online:2012-06-05

Abstract:China Spallation Neutron Source (CSNS), one project of the 12^thFive-Year-Plan scheme of China, is under construction in Guangdong province. Three neutron spectrometers will be installed during the first phase of the project, and two-dimensional position sensitive thermal neutron detectors are required. Before the construction of the neutron detectors, a prototype of a two-dimensional 200 mm×200 mm Multi-wire Proportional Chamber (MWPC) with Ar/CO₂(90/10) flowing gas has been constructed. In 2009, the prototype was tested with the⁵⁵Fe X-ray using part of the electronics, and performed well.
Following the test in 2009, the neutron detector was constructed with the complete electronics and filled with the 6 atm.³He+2.5 atm. C₃H₈gas mixture in 2010. The neutron detector has been primarily tested with an Am-Be source. In this paper, new developments of the neutron detector including the design of the high pressure chamber, the optimization of the gas purifying system and the gas filling process will be reported. The results and discussion are also presented in this paper.

Developments of a 2D position sensitiveneutron detector

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通讯作者:陈斌, bchen63@163.com

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