Chinese Physics C > 2005, Vol. 29 > Issue(4): 399-403

Thin Plastic Scintillating Foil for Measuring Pulsed Neutron Flux in High Gamma-Ray Environment

Northwest Institute of Nuclear Technology,Xi'an 710024,China2 Institute of Modern Physics,Fudan University,Shanghai 200433,China3 Department of nuclear engineering,Tsinghua University,Beijing 100084,China

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Abstract：
A new conception of measuring pulsed neutron flux in high gamma–ray environment with a thin plastic scintillating foil is presented. based on the calculations of the response to neutrons and gamma–rays, a new gamma–insensitive detector for detecting fast rising, transient neutron flux has been developed and preliminarily tested, which comprises a thin plastic scintillating foil of st401 (tPsf) and a photomultiplier tube (or a photodiode). the detector exhibits three distinct properties compared with the conventional ones: (1) high neutron sensitivity, (2) high n/γ discrimination, and (3) flat response in the given neutron energy range.

References

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OUYANG Xiao-Ping, LI Zhen-Fu, WANG Qiu-Shu and HUO Yu-Kun. Thin Plastic Scintillating Foil for Measuring Pulsed Neutron Flux in High Gamma-Ray Environment[J]. Chinese Physics C, 2005, 29(4): 399-403.

OUYANG Xiao-Ping, LI Zhen-Fu, WANG Qiu-Shu and HUO Yu-Kun. Thin Plastic Scintillating Foil for Measuring Pulsed Neutron Flux in High Gamma-Ray Environment[J]. Chinese Physics C, 2005, 29(4): 399-403. shu

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Received: 2004-08-17
Revised: 1900-01-01

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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

Thin Plastic Scintillating Foil for Measuring Pulsed Neutron Flux in High Gamma-Ray Environment

Corresponding author:OUYANG Xiao-Ping,

Northwest Institute of Nuclear Technology,Xi'an 710024,China2 Institute of Modern Physics,Fudan University,Shanghai 200433,China3 Department of nuclear engineering,Tsinghua University,Beijing 100084,China

Received Date:2004-08-17

Accepted Date:1900-01-01

Available Online:2005-04-05

Abstract:A new conception of measuring pulsed neutron flux in high gamma–ray environment with a thin plastic scintillating foil is presented. based on the calculations of the response to neutrons and gamma–rays, a new gamma–insensitive detector for detecting fast rising, transient neutron flux has been developed and preliminarily tested, which comprises a thin plastic scintillating foil of st401 (tPsf) and a photomultiplier tube (or a photodiode). the detector exhibits three distinct properties compared with the conventional ones: (1) high neutron sensitivity, (2) high n/γ discrimination, and (3) flat response in the given neutron energy range.

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Thin Plastic Scintillating Foil for Measuring Pulsed Neutron Flux in High Gamma-Ray Environment

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