Development of in situ selective beta-ray distribution detection technology based on gamma-ray sensitivity difference

J. W. Bae; U. Lee; C. W. Lee; H. R. Kim

doi:10.1109/TNS.2018.2794531

Development of in situ selective beta-ray distribution detection technology based on gamma-ray sensitivity difference

J. W. Bae, U. Lee, C. W. Lee, H. R. Kim

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

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 ¹³⁷Cs, ⁶⁰Co, ²²Na, and ⁵⁴Mn were experimentally characterized. The sensitivity ratio for ¹³⁷Cs between the CdWO₄ and plastic scintillators was 8 ± 0.32, while the sensitivity ratio for beta rays from ⁹⁰Sr 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.

Original language	English
Pages (from-to)	903-908
Number of pages	6
Journal	IEEE Transactions on Nuclear Science
Volume	65
Issue number	3
DOIs	https://doi.org/10.1109/TNS.2018.2794531
State	Published - Mar 2018
Externally published	Yes

Funding

Manuscript received September 8, 2017; revised November 14, 2017; accepted January 3, 2018. Date of publication January 17, 2018; date of current version March 14, 2018. This work was supported in part by the “Development of the Beta-Ray Distribution Measurement Technology of the Site” through the Ministry of Education of the Republic of Korea and Korea Atomic Energy Research Institute under Grant KAERI-2015-2015M2A8A5022235, in part by the Industrial Technology Innovation Program (Real-Time Underwater Tritium Monitoring Technology by Electrolysis) through the Korea Institute of Energy Technology Evaluation and Planning under Grant 2016520101340, and in part by the National Research Foundation of Korea through the Korean Government (MSIP: Ministry of Science, ICT and Future Planning) under Grant 2016M2B2B1945083.

Funders	Funder number
Ministry of Education
Ministry of Science, ICT and Future Planning	2016M2B2B1945083
Korea Atomic Energy Research Institute	KAERI-2015-2015M2A8A5022235
National Research Foundation of Korea
Korea Institute of Energy Technology Evaluation and Planning	2016520101340

Keywords

Beta-ray detectors
cadmium-tungstate (CdWO4)
discrimination
gamma-ray sensitivity
plastic scintillator

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10.1109/TNS.2018.2794531

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abstract = "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 137Cs, 60Co, 22Na, and 54Mn were experimentally characterized. The sensitivity ratio for 137Cs between the CdWO4 and plastic scintillators was 8 ± 0.32, while the sensitivity ratio for beta rays from 90Sr 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.",

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AB - 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 137Cs, 60Co, 22Na, and 54Mn were experimentally characterized. The sensitivity ratio for 137Cs between the CdWO4 and plastic scintillators was 8 ± 0.32, while the sensitivity ratio for beta rays from 90Sr 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.

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Development of in situ selective beta-ray distribution detection technology based on gamma-ray sensitivity difference

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