Fusion Neutron Flux Detector for the ITER

YUAN Guoliang(袁国梁); YANG Qingwei(杨青巍); YANG Jinwei(杨进蔚); SONG Xianying(宋先瑛); LI Xu(李旭); WU Huajian(吴华剑); WANG Zhiqiang(王志强)

doi:10.1088/1009-0630/16/2/14

Plasma Science and Technology > 2014 > 16(2): 168-171. > DOI: 10.1088/1009-0630/16/2/14

YUAN Guoliang(袁国梁), YANG Qingwei(杨青巍), YANG Jinwei(杨进蔚), SONG Xianying(宋先瑛), LI Xu(李旭), WU Huajian(吴华剑), WANG Zhiqiang(王志强). Fusion Neutron Flux Detector for the ITER[J]. Plasma Science and Technology, 2014, 16(2): 168-171. DOI: 10.1088/1009-0630/16/2/14

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Fusion Neutron Flux Detector for the ITER

1 Southwestern Institute of Physics, Chengdu 610041, China 2 Beijing Nuclear Instruments Factory, Beijing 100020, China 3 China Institute of Atomic Energy, Beijing 102413, China

Funds: supported by the National Magnetic Confinement Fusion Science Program of China (Nos.2008GB109002 and 2012GB101003)

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Received Date: August 20, 2013

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Abstract

Two fission chambers with different amounts of fissile material (enriched 90% uranium-235) have been manufactured for neutron flux detection in a thermonuclear fusion device. The characteristics of neutron signal and its discrimination from other signals, and a plateau of high voltage between the anode and cathode have been validated in a thermal neutron source. The energy responses of the two fission chambers at seven energy levels have been calibrated in an accelerator fast neutron source and the results agree well with the simulations.
- fission chamber,
- fusion neutron flux,
- energy response

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