Calibration of Neutron Detection Efficiency of Li-glass Detector

ZHANG Qiwei; HE Guozhu; RUAN Xichao; LI Xia; REN Jie; ZHOU Zuying

doi:10.11804/NuclPhysRev.30.02.156

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Article Navigation > Nuclear Physics Review > 2013 > 30(2): 156-160

ZHANG Qiwei, HE Guozhu, RUAN Xichao, LI Xia, REN Jie, ZHOU Zuying. Calibration of Neutron Detection Efficiency of Li-glass Detector[J]. Nuclear Physics Review, 2013, 30(2): 156-160. doi: 10.11804/NuclPhysRev.30.02.156

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ZHANG Qiwei, HE Guozhu, RUAN Xichao, LI Xia, REN Jie, ZHOU Zuying. Calibration of Neutron Detection Efficiency of Li-glass Detector[J]. Nuclear Physics Review, 2013, 30(2): 156-160. doi: 10.11804/NuclPhysRev.30.02.156

Calibration of Neutron Detection Efficiency of Li-glass Detector

doi: 10.11804/NuclPhysRev.30.02.156

China Institute of Atomic Energy, Beijing 102413, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2013-06-20

Abstract

In order to accurately measure the neutron capture cross section in the energy range of keVMeV, 4 πgamma-ray total absorption facility (GTAF) is being constructed at China Institute of Atomic Energy (CIAE). The lithium glass detector will be used as a neutron beam monitor for GTAF. The detection efficiency of the lithium glass detector at two incident neutron energy points (250, 565 keV) was calibrated in 5SDH-2 accelerator, and the relative detection
efficiency was simulated by GEANT4 and MCNP code. By the normalization of the experimental data and simulation result, the neutron detection efficiency curve of the lithium glass detector between 10 keV and 1 MeV was obtained. This work will be important to convert the Time-of-flight spectrum that be measured by Li-glass detector to the energy spectrum of neutron beam, and provide the new method for calibration of detection efficiency.
- gamma-ray total absorption facility,
- Li-glass detector,
- detection efficiency,
- GEANT4,
- MCNP
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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

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Calibration of Neutron Detection Efficiency of Li-glass Detector

doi: 10.11804/NuclPhysRev.30.02.156

China Institute of Atomic Energy, Beijing 102413, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2013-06-20

Key words:

Abstract: In order to accurately measure the neutron capture cross section in the energy range of keVMeV, 4 πgamma-ray total absorption facility (GTAF) is being constructed at China Institute of Atomic Energy (CIAE). The lithium glass detector will be used as a neutron beam monitor for GTAF. The detection efficiency of the lithium glass detector at two incident neutron energy points (250, 565 keV) was calibrated in 5SDH-2 accelerator, and the relative detection
efficiency was simulated by GEANT4 and MCNP code. By the normalization of the experimental data and simulation result, the neutron detection efficiency curve of the lithium glass detector between 10 keV and 1 MeV was obtained. This work will be important to convert the Time-of-flight spectrum that be measured by Li-glass detector to the energy spectrum of neutron beam, and provide the new method for calibration of detection efficiency.

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