Journal of Radiation Protection and Research

  • 제45권2호
  • /
  • Pages.88-94
  • /
  • 2020
  • /
  • 2508-1888(pISSN)
  • /
  • 2466-2461(eISSN)
대한방사선방어학회 (The Korean Association for Radiation Protection)
권호 표지
DOI QR코드

DOI QR Code

Optimal Monitoring Intervals and MDA Requirements for Routine Individual Monitoring of Occupational Intakes Based on the ICRP OIR

  • Ha, Wi-Ho (Laboratory of Health Physics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences) ;
  • Kwon, Tae-Eun (Laboratory of Health Physics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences) ;
  • Jin, Young Woo (Laboratory of Health Physics, National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences)
  • 투고 : 2020.02.10
  • 심사 : 2020.05.26
  • 발행 : 2020.06.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Background: The International Commission on Radiological Protection (ICRP) has recently published report series on the occupational intakes of radionuclides (OIR) for internal dosimetry of radiation workers. In this study, the optimized monitoring program including the monitoring interval and the minimum detectable activity (MDA) of major radionuclides was suggested to perform the routine individual monitoring of internal exposure based on the ICRP OIR. Materials and Methods: The derived recording levels and the critical monitoring quantities were reviewed from international standards or guidelines by the International Atomic Energy Agency (IAEA), the International Organization for Standardization (ISO), and the European Radiation Dosimetry Group (EURADOS). The OIR data viewer provided by ICRP was used to evaluate the monitoring intervals and the MDA, which are derived from the reference bioassay functions and the dose coefficients. Results and Discussion: The optimal monitoring intervals were determined taking account of two requirement conditions on the potential intake underestimation and the MDA values. The MDA requirement values of the selected radionuclides were calculated based on the committed effective dose from 0.1 mSv to 5 mSv. The optimized routine individual monitoring program was suggested including the optimal monitoring intervals and the MDA requirements. The optimal MDA values were evaluated based on the committed effective dose of 0.1 mSv. However, the MDA can be adjusted considering the practical operation of the routine individual monitoring program in the nuclear facilities. Conclusion: The monitoring intervals and the MDA as crucial factors for the routine monitoring were described to suggest the optimized routine individual monitoring program of the occupational intakes. Further study on the alpha/beta-emitting radionuclides as well as short lived gamma-emitting nuclides will be necessary in the future.

키워드

참고문헌

  1. Paquet F, Etherington G, Bailey MR, Leggett RW, Lipsztein J, Bolch W, et al. ICRP Publication 130: Occupational intakes of radionuclides: Part 1. Ann ICRP. 2015;44:5-188. https://doi.org/10.1177/0146645315577539
  2. Paquet F, Bailey MR, Leggett RW, Lipsztein J, Fell TP, Smith T, et al. ICRP Publication 134: Occupational intakes of radionuclides: Part 2. Ann ICRP. 2016;45:7-349.
  3. Paquet F, Bailey MR, Leggett RW, Lipsztein J, Marsh J, Fell TP, et al. ICRP Publication 137: Occupational intakes of radionuclides: Part 3. Ann ICRP. 2017;46:1-486.
  4. Dose coefficients for intakes of radionuclides by workers: a report of a Task Group of Committee 2 of the International Commission on Radiological Protection. Ann ICRP. 1994;24:1-83.
  5. International Commission on Radiological Protection. ICRP Publication 78: Individual monitoring for internal exposure of workers (preface and glossary missing). Stockholm, Sweden: International Commission on Radiological Protection; 1997.
  6. International Atomic Energy Agency. Occupational radiation protection (General Safety Guide No. GSG-7). Vienna, Austria: International Atomic Energy Agency; 2018.
  7. International Organization for Standardization. Radiation protection: Monitoring of workers occupationally exposed to a risk of internal contamination with radioactive material. Geneva, Switzerland: International Organization for Standardization; 2006. (ISO 20553:2006).
  8. Castellani CM, Marsh JW, Hurtgen C, Blanchardon E, Berard P, Giussani A, et al. IDEAS guidelines (version 2) for the estimation of committed doses from incorporation monitoring data (EURADOS Report 2013-01). Braunschweig, Germany: European Radiation Dosimetry; 2013.
  9. Castellani CM, Marsh JW, Hurtgen C, Blanchardon E, Berard P, Giussani A, et al. EURADOS-IDEAS Guidelines (Version 2) for the estimation of committed doses from incorporation monitoring data. Radiat Prot Dosimetry. 2016;170:17-20. https://doi.org/10.1093/rpd/ncv457
  10. Doerfel H, Andrasi A, Bailey M, Berkovski V, Blanchardon E, Castellani CM, et al. A structured approach for the assessment of internal dose: the IDEAS guidelines. Radiat Prot Dosimetry. 2007;127:303-310. https://doi.org/10.1093/rpd/ncm405
  11. International Organization for Standardization. Radiation protection: Dose assessment for the monitoring of workers for internal radiation exposure. Geneva, Switzerland: International Organization for Standardization; 2011. (ISO 27048:2011).
  12. Korea Hydro & Nuclear Power. Technical basis document for internal dosimetry: pressurized water reactor (KHNP Technical Document No. A18IF05). Gyeongju, Korea: Korea Hydro & Nuclear Power; 2009.