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- Kim, Hee Reyoung
- RAdiation and MagnetohydroDynamics Advanced Lab.
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Development of In Situ Selective Beta-Ray Distribution Detection Technology Based on Gamma-Ray Sensitivity Difference
- Author(s)
- Bae, J. W., Lee, U., Lee, C. W., Kim, Hee Reyoung
- Issued Date
- 2018-03
- Citation
- IEEE TRANSACTIONS ON NUCLEAR SCIENCE, v.65, no.3, pp.903 - 908
- 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 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.
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- ISSN
- 0018-9499
- Keyword (Author)
- Beta-ray detectors, cadmium-tungstate (CdWO4), discrimination, gamma-ray sensitivity, plastic scintillator
- Keyword
- NUCLEAR-POWER-PLANT, CDWO4 CRYSTAL, SR-90, DEPTH, BREMSSTRAHLUNG, RADIOACTIVITY, CALIBRATION, PET
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