Study of neutron radiation effect in LaBr<SUB>3</SUB> scintillator

LU Yi; SONG Zhao-Hui; LI Gang; TAN Xin-Jian; ZHAO Xiao-Chuan; ZHANG Kan

doi:10.1088/1674-1137/39/10/106003

Chinese Physics C> 2015, Vol. 39> Issue(10) : 106003 DOI: 10.1088/1674-1137/39/10/106003

Study of neutron radiation effect in LaBr₃ scintillator

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Abstract：
The resistance to neutron irradiation of LaBr₃ scintillator was studied in this work. The change of background counting rate, light output and energy resolution of the LaBr₃ scintillator were analyzed to determine whether the scintillator was damaged under different neutron flux rates induced by ²⁴¹Am-Be, D-T neutron generator, and reactor neutron source. The results show that the neutron radiation damage in LaBr₃ scintillator is mainly affected by neutron flux rate. Under low flux rate, the properties of the scintillator were hardly changing, while under high flux rate, there is obvious deterioration in the background spectra and in the energy resolution because of the neutron activation. After a period, the neutron radiation damage will spontaneously recover.

References

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LU Yi, SONG Zhao-Hui, LI Gang, TAN Xin-Jian, ZHAO Xiao-Chuan and ZHANG Kan. Study of neutron radiation effect in LaBr₃ scintillator[J]. Chinese Physics C, 2015, 39(10): 106003. doi: 10.1088/1674-1137/39/10/106003

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Received: 2015-02-28
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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

Study of neutron radiation effect in LaBr₃ scintillator

Corresponding author: LU Yi,

Received Date: 2015-02-28

Accepted Date: 1900-01-01

Available Online: 2015-10-10

Abstract: The resistance to neutron irradiation of LaBr₃ scintillator was studied in this work. The change of background counting rate, light output and energy resolution of the LaBr₃ scintillator were analyzed to determine whether the scintillator was damaged under different neutron flux rates induced by ²⁴¹Am-Be, D-T neutron generator, and reactor neutron source. The results show that the neutron radiation damage in LaBr₃ scintillator is mainly affected by neutron flux rate. Under low flux rate, the properties of the scintillator were hardly changing, while under high flux rate, there is obvious deterioration in the background spectra and in the energy resolution because of the neutron activation. After a period, the neutron radiation damage will spontaneously recover.

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Study of neutron radiation effect in LaBr3 scintillator

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Study of neutron radiation effect in LaBr3 scintillator

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Study of neutron radiation effect in LaBr₃ scintillator

Study of neutron radiation effect in LaBr₃ scintillator