Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
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A Study on Performance Characteristics of Neutron Detector to Measure the Burnup Profile of Spent Fuel in NPP

원전 내 사용후핵연료 연소도 측정을 위한 중성자 검출기의 성능 평가 연구

  • Received : 2023.06.30
  • Accepted : 2023.09.06
  • Published : 2023.09.30
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Abstract

The burnup profile of spent fuel should be determined accurately for the safety storage of spent fuel. In this study, a neutron detection system was developed as a part of basic research to analyze the burnup profile of spent fuel, and a performance was evaluated using a radiation source. The prototype of the neutron detection system was based on a 3He proportional chamber. The 3He proportional chamber is often used for neutron measurement and analysis because of its high neutron detection efficiency and simplicity for gamma ray rejection. For quantitative evaluation, tests were conducted using calibrated 252Cf and 137Cs sources. In the performance evaluation, a field applicability was verified by analyzing the detection characteristics according to the nuclide.

Keywords

Acknowledgement

본 연구는 한국에너지기술평가원 재원으로, 원전 안전운영을 위한 핵심소재, 부품, 장비 국산화 기술개발사업 '사용후핵연료 연소도 측정 설비 기술개발(과제번호: 20222B10100060)'에 의해 수행되었으며, 그 지원에 감사드립니다.

References

  1. LEE SH, KIM SH, Shin CM and Jung HR. 2022. Evaluation of thermal and structural properties of spent nuclear fuel disposal system with different canister materials. J. Radiat. Ind. 16(4):473-483. https://doi.org/10.23042/radin.2022.16.4.473.
  2. Park SH, Eom SH , Shin HS, Lim HI, Ha JH and Kim HS. 2010. Fabrication of ionization chamber to measure the burnup of spent fuel. J. Radiat. Prot. Res. 35(1):21-25. CI:G704-001034.2010.35.1.004.
  3. Choi JW, Ko WI, Lee JS and Park HS. 1996. Study on Decay Characteristics Change of Spent Fuel Materials by DUPIC Fuel Cycle. J. Radiat. Prot. Res. 21(1):27-39. https://www.jrpr.org/journal/view.php?number=277.
  4. Knoll GF. 2000. Radiation detection and measurement. 3th ed. pp. 508-509. John Wiley & Sons, Inc. New York.
  5. Radev R and McLean T. 2020. Characterization of 244Cm neutron sources. Appl. Radiat. Isot. 163:1-9. https://doi.org/10.1016/j.apradiso.2020.109225.
  6. Choi JB, Park JS, Son JB and Kim YK. 2019. Study of n/γ discrimination using 3He proportional chamber in high gamma-ray fields. Nucl. Eng. Technol. 51(1):263-268. https://doi.org/10.1016/j.net.2018.08.013.