Gamma-Ray Source Positioning Using Array NaI(Tl) Detectors in the Radiation Portal Monitors
Gamma-Ray Source Positioning Using Array NaI(Tl) Detectors in the Radiation Portal Monitors
复制标题
在辐射入口监视器中使用阵列 NaI(Tl) 探测器进行伽马射线源定位
DOI：
10.3938/jkps.75.196
复制
发表时间：
2019-08
影响因子：
0.6
通讯作者：
Xianguo Tuo
中科院分区：
文献类型：
--
作者：
Qibiao Wang;Chao Deng;Jianbo Yang;Rui Shi;Songbai Zhang;Xianguo Tuo
Radiation portal monitors (RPMs) are globally employed in ports to decrease the illicit trafficking of nuclear materials. Most RPMs are generally considered as threshold devices because they utilize large plastic scintillators, which have limited energy resolution and no position sensitivity, to count the gamma-rays and neutrons emitted by nuclear materials. Hence, we designed an RPM detector system with NaI(Tl) detectors inserted into the plastic scintillators to realize gamma-ray source identification and positioning. In this work, a 2D gamma-ray source positioning algorithm based on the attenuation law and solidangle variation was studied with the simulation results, and the variation of the positioning deviations with the real positions was spline interpolated to calibrate the calculated position. The testing experiment showed a small root mean square error (RMSE) for both x (0.86 cm) and y (1.52 cm) after calibration.
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DOI：
10.1016/j.nima.2007.10.026
发表时间：
2008-01
影响因子：
1.4
作者：
R. Kouzes;E. Siciliano;J. Ely;P. Keller;R. McConn
通讯作者：
R. Kouzes;E. Siciliano;J. Ely;P. Keller;R. McConn
DOI：
10.1016/j.nima.2014.08.033
发表时间：
2014-12-11
影响因子：
1.4
作者：
Willis, Michael J.;Skutnik, Steven E.;Hall, Howard L.
通讯作者：
Hall, Howard L.
影响因子：
1.8
作者：
David Boardman;Mark Reinhard;Alison Flynn
通讯作者：
David Boardman;Mark Reinhard;Alison Flynn
影响因子：
1.8
作者：
P. Fehlau;G. Brunson
通讯作者：
P. Fehlau;G. Brunson
影响因子：
--
作者：
Kouzes, RT
通讯作者：
Kouzes, RT