Comparison of thermal neutron detection efficiency of <SUP>6</SUP>Li scintillation glass and <SUP>3</SUP>He gas proportional tube

XU Ming; TANG Zhi-Cheng; CHEN Guo-Ming; TAO Jun-Quan

doi:10.1088/1674-1137/37/10/106001

Chinese Physics C> 2013, Vol. 37> Issue(10) : 106001 DOI: 10.1088/1674-1137/37/10/106001

Comparison of thermal neutron detection efficiency of ⁶Li scintillation glass and ³He gas proportional tube

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We report on a comparison study of the ³He gas proportional tube and the ⁶Li incorporated scintillation glasses on thermal neutron detection efficiency. Both ³He and ⁶Li are used commonly for thermal neutron detection because of their high neutron capture absorption coefficient. By using a neutron source ²⁵²Cf and a paraffin moderator in an alignment system, we can get a small beam of thermal neutrons. A flash ADC is used to measure the thermal neutron spectrum of each detector, and the detected number of events is determined from the spectrum, then we can calculate the detection efficiency of different detectors. Meanwhile, the experiment has been modeled with GEANT4 to validate the results against the Monte Carlo simulation.

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XU Ming, TANG Zhi-Cheng, CHEN Guo-Ming and TAO Jun-Quan. Comparison of thermal neutron detection efficiency of ⁶Li scintillation glass and ³He gas proportional tube[J]. Chinese Physics C, 2013, 37(10): 106001. doi: 10.1088/1674-1137/37/10/106001

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Received: 2012-12-05
Revised: 2013-03-18

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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

Comparison of thermal neutron detection efficiency of ⁶Li scintillation glass and ³He gas proportional tube

Corresponding author: TANG Zhi-Cheng,

Received Date: 2012-12-05

Accepted Date: 2013-03-18

Available Online: 2013-10-05

Abstract: We report on a comparison study of the ³He gas proportional tube and the ⁶Li incorporated scintillation glasses on thermal neutron detection efficiency. Both ³He and ⁶Li are used commonly for thermal neutron detection because of their high neutron capture absorption coefficient. By using a neutron source ²⁵²Cf and a paraffin moderator in an alignment system, we can get a small beam of thermal neutrons. A flash ADC is used to measure the thermal neutron spectrum of each detector, and the detected number of events is determined from the spectrum, then we can calculate the detection efficiency of different detectors. Meanwhile, the experiment has been modeled with GEANT4 to validate the results against the Monte Carlo simulation.

Comparison of thermal neutron detection efficiency of ⁶Li scintillation glass and ³He gas proportional tube

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Comparison of thermal neutron detection efficiency of 6Li scintillation glass and 3He gas proportional tube

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Comparison of thermal neutron detection efficiency of 6Li scintillation glass and 3He gas proportional tube

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Comparison of thermal neutron detection efficiency of ⁶Li scintillation glass and ³He gas proportional tube

Comparison of thermal neutron detection efficiency of ⁶Li scintillation glass and ³He gas proportional tube