Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2010, Vol. 21 ›› Issue (6): 330-333 doi: 10.13538/j.1001-8042/nst.21.330-333

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Neutron response functions and detection efficiency of a spherical proton recoil proportional counter

WANG Xinhua~* HE Tie GUO Haiping AN Li ZHEN Pu MOU Yunfeng YANG Jian   

  1. Institute of Nuclear Physics and Chemistry,Chinese Academy of Engineering Physics,Mianyang 621900,China
WANG Xinhua, HE Tie, GUO Haiping, AN Li, ZHEN Pu, MOU Yunfeng, YANG Jian. Neutron response functions and detection efficiency of a spherical proton recoil proportional counter.Nuclear Science and Techniques, 2010, 21(6): 330-333     doi: 10.13538/j.1001-8042/nst.21.330-333

Abstract:

The neutron response function and detection efficiency of a spherical proton recoil proportional counter (SP) play key roles in precise measurement of neutron spectra of the interior materials.In this paper,the response functions and detection efficiency of three SPs developed at CAEP are simulated by Geant4.The simulated spectra are compared with pulse-height spectra measured at 0.165,0.575,1.4,and 14.1 MeV of incident neutrons.And the calculated detector efficiencies agree within 5%with the data obtained by neutron activation.

Key words: Spherical proton recoil proportional counter, Response function, Detection efficiency, Geant4