Development of In Situ Selective Beta-Ray Distribution Detection Technology Based on Gamma-Ray Sensitivity Difference

被引：3

作者：

Bae, J. W. ^{[1
]}

Lee, U. ^{[1
]}

Lee, C. W. ^{[1
]}

Kim, H. R. ^{[1
]}

机构：

[1] Ulsan Natl Inst Sci & Technol, Dept Nucl Engn, Ulsan 44919, South Korea

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2018年 / 65卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

Beta-ray detectors; cadmium-tungstate (CdWO4); discrimination; gamma-ray sensitivity; plastic scintillator; NUCLEAR-POWER-PLANT; CDWO4; CRYSTAL; SR-90; DEPTH; BREMSSTRAHLUNG; RADIOACTIVITY; CALIBRATION; PET;

D O I：

10.1109/TNS.2018.2794531

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An in situ detection method for beta-ray distribution was developed. The method uses the gamma-ray sensitivity difference between two scintillators: a cadmium-tungstate (CdWO4) scintillator and a plastic scintillator. The gamma-ray sensitivity ratios for several gamma-ray sources such as Cs-137, Co-60, Na-22, and Mn-54 were experimentally characterized. The sensitivity ratio for Cs-137 between the CdWO4 and plastic scintillators was 8 +/- 0.32, while the sensitivity ratio for beta rays from Sr-90 was 1.03 +/- 0.006. The beta-ray contributions to the total counts can be evaluated using this characteristic. A combined beta-ray and gamma-ray source was prepared, and its beta-ray distribution was successfully obtained using the proposed method.

引用

页码：903 / 908

页数：6

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