Design of CsI(TI) detector system to search for lost radioactive source

Waseem Khan; Chao-Hui He; Qing-Min Zhang; Yu Cao; Wei-Tao Yang

doi:10.1007/s41365-019-0658-3

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Design of CsI(TI) detector system to search for lost radioactive source

NUCLEAR ELECTRONICS AND INSTRUMENTATION | Updated：2021-02-01

- Design of CsI(TI) detector system to search for lost radioactive source
- Nuclear Science and Techniques Vol. 30, Issue 9, Article number: 132(2019)
- Affiliations：
  
  1.Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
- Author bio：
- Funds：
- DOI：10.1007/s41365-019-0658-3
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Waseem Khan, Chao-Hui He, Qing-Min Zhang, et al. Design of CsI(TI) detector system to search for lost radioactive source. [J]. Nuclear Science and Techniques 30(9):132(2019)
DOI：

Waseem Khan, Chao-Hui He, Qing-Min Zhang, et al. Design of CsI(TI) detector system to search for lost radioactive source. [J]. Nuclear Science and Techniques 30(9):132(2019) DOI： 10.1007/s41365-019-0658-3.

摘要

Abstract

This report presents a design system based on the use of CsI(TI) detectors to search for lost radioactive sources that are dangerous and harmful to individuals, including searching for persons. For this purpose, the GEANT4 simulation toolkit was utilized to develop a system based on thee detectors. Various simulated analyses were performed on the dose rate of the thee detectors using different source–detector distances and detector separation. There was good agreement between the simulated results and the experimentally measured data. A new method was discussed to detect and search for radioactive sources based only on the dose rate in detectors with source activity. Numerical analyses were performed based on the measured dose rates and the difference of distances to determine the actual location of the lost single or multiple γ-ray sources at a specific angle. The detection limit was calculated from the background radiation to establish the sensitivity and capability of the proposed detector system. This system can be applied in fields in which it is necessary to locate unknown radioactive sources.

关键词

Keywords

Geant4Gamma-ray sourceCsI(TI) detectors

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