A novel MPPC-based detection method for wide range X/γ radiation dose rate measurement
A novel MPPC-based detection method for wide range X/γ radiation dose rate measurement
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DOI：
10.1088/1748-0221/17/07/p07011
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发表时间：
2022
影响因子：
1.3
通讯作者：
Y. Zhang;D. Li;T. Tong;X. Huang;Y. Wang;Y. Liu;M. Zhu;W. Zhou;W. Zhang;Z. Zhang;R. Shi;L. Wei
中科院分区：
文献类型：
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作者：
Y. Zhang;D. Li;T. Tong;X. Huang;Y. Wang;Y. Liu;M. Zhu;W. Zhou;W. Zhang;Z. Zhang;R. Shi;L. Wei
随着核技术在各个领域的应用日益广泛，为了满足不同领域对核辐射剂量率测量范围的要求，提出了一种新的X/γ剂量率测量方法。利用MPPC耦合CsI（TI）闪烁体，结合连续周期电荷积分电子学，研制了一种探测器系统。它使MPPC能够工作在雪崩和比例两个不同的区域，并通过不同区域之间的增益变化实现宽范围的剂量率测量。在实验中，该方法测量了60 Co γ辐射剂量率在0.1 μ戈伊/h ~ 400戈伊/h范围内。此外，它测量了137 Cs的能量分辨率为9.4%，剂量率为1 mGy/h。这些结果表明，该方法是准确和可行的。
With the increasing application of nuclear technology in many fields, in order to meet the requirements for the measurement range of nuclear radiation dose rate in different fields, a new X/γ dose rate measurement method is proposed in this paper. Using MPPC to couple CsI(TI) scintillator, combined with continuous periodic charges integration electronics, a detector system was developed. It enables MPPC to work in two different regions, avalanche and proportional, and realizes a wide range of dose rate measurement through gain changes between different regions. In experiments, this method measured the γ radiation dose rate in radiation fields between 0.1 μGy/h to 400 Gy/h 60Co. Additionally, it measured an energy resolution for 137Cs at 9.4% at a dose rate of 1 mGy/h. These results demonstrate that this method is both accurate and feasible.