Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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International Proficiency Test for Radioactivity by Gamma Spectroscopy Evaluation of Results

감마 분광분석법에 따른 방사능 국제 숙련도 시험 결과 평가

  • Ji-Eun Lee (Research Center, Dongnam Institute of Radiological & Medical Sciences) ;
  • Yeong-Rok Kang (Research Center, Dongnam Institute of Radiological & Medical Sciences) ;
  • Hee-Jin Jang (Research Center, Dongnam Institute of Radiological & Medical Sciences) ;
  • Yong-UK Kye (Research Center, Dongnam Institute of Radiological & Medical Sciences) ;
  • Wol-Soon Jo (Research Center, Dongnam Institute of Radiological & Medical Sciences) ;
  • Jeong-Hwa Baek (Research Center, Dongnam Institute of Radiological & Medical Sciences) ;
  • Chang-Geun Lee (Research Center, Dongnam Institute of Radiological & Medical Sciences) ;
  • Dong-Yeon Lee (Department of Radiological Science, Dong-eui University) ;
  • Hyo-Jin Kim (Research Center, Dongnam Institute of Radiological & Medical Sciences)
  • Received : 2024.08.13
  • Accepted : 2024.09.14
  • Published : 2024.10.31
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Abstract

The method for verifying analytical technology in the field of radioactivity measurement involves participation in a proficiency test(PT). Proficiency tests are mandatory requirements of ISO/IEC 17025 for maintaining calibration and testing laboratories. These tests are intended to evaluate the analytical capabilities of laboratories, identify problems, support corrective actions, and verify uncertainties. We conducted a proficiency test on the Environmental Resources Association of America(ERA). In the field of radiochemistry, we participated in RAD 136 and compared our results with those of 24 laboratories world wide. The analytical capability of gamma nuclide was evaluated as satisfactory, warning, or unsatisfactory, according to the Z-score of ISO 13528. The radioactivity of 133Ba, 134Cs, 137Cs, 60Co and 65Zn contained in gamma emitters sample was measured and analyzed, and all the result values |z| < 2 were satisfactory according to the Z-score evaluation criteria. Hence, we received the result Laboratory of Excellence.

Keywords

Acknowledgement

This work was supported by the Dongnam Institute of Radiological & Medical Sciences(DIRAMS) grant funded by the Korea government(MSIT) (No. 50491-2024)

References

  1. ISO 13528:2015(E). Statistical methods for use in proficiency testing by interlaboratory comparison. International Organization for Standardization; 2015. Retrieved from https://www.iso.org/Standards
  2. ISO/IEC 17025:2017(E). General requirements for the competence of testing and calibration laboratories. International Organization for Standardization; 2017. Retrieved from https://www.iso.org/Standards
  3. Samed OH, Baydoun R. Proficiency tests: A tool for improvement and testing analytical performance at Gamma-Ray Spectroscopy Laboratory. Accreditation and Quality Assurance. 2021;22(26):121-27. DOI: 10.1007/s00769-021-01468-6
  4. Sahin NK, Yeltepe E, Yucel u. A review of the nationwide proficiency test on natural radioactivity measurements by gamma spectrometry. Applied Radiation and Isotopes. 2016;109:49-53. DOI: 10.1016/j.apradiso.2015.12.053
  5. Dziel T, Listkowska A, Tyminski Z. Proficiency of 90Y and 89Sr activity measurements in Polish hospitals. Applied Radiation and Isotopes. 2014;87:24-6. DOI: 10.1016/j.apradiso.2013.11.055
  6. Peng EC, Wang JJ. A study of production of radioactive environmental reference materials used for proficiency testing program in Taiwan. Applied Radiation and Isotopes. 2013;81:14-20. DOI: 10.1016/j.apradiso.2013.03.041
  7. Iwahara A, Tauhata L, Oliveria AE. NIcoli IG, Alabarsa FG. Xzvier AM, et al. Proficiency test for radioactivity measurements in nuclear medicine. Journal of Radioanalytical and Nuclear Chemistry. 2009;42(4):255-9. DOI: 10.1590/S0100-39842009000400013
  8. Shakhashiro A, Radecki Z, Trinkl A, Sansone U, Benesch T. Final report on the proficiency test of the Analytical Laboratories for Measurement of Environmental Radioactivity (ALMERA) network. IAEA AL 152. 2005. Retrieved from https://inis.iaea.org/collection/NCLCollectionStore/_Public/42/016/42016116.pdf
  9. Denis GC, Matjaz K, Marijan N, Branko V, Benjamin Z. Evaluation of comparison and proficiency test results of gamma ray spectrometry at Jozef Stefan Institute from 1986 to 2014. Applied Radiation and Isotopes. 2016;109:54-60. DOI: 10.1016/j.apradiso.2015.12.025
  10. Halina PM, Leon F. Proficiency testing schemes on determination of radioactiviy in food and environmental samples organized by the NAEA, Poland. Nukleonika. 2010;55(2):149-54. Retrieved from https://yadda.icm.edu.pl/baztech/element/bwmeta1.element.baztech-article-BUJ7-0014-0025
  11. Jin DS, Hong JY, Kim HG, Kwak SS, Lee JG. A study on the technology of measuring and analyzing neutrons and gamma-rays using a CZT semiconductor detector. Journal of Radiological Science and Technology. 2022;45(1):57-67. DOI: 10.17946/JRST.2022.45.1.57
  12. Park JS, Lim HJ, Seo HS, Jang DB, Kim MJ, Lee SB, et al. A study on the self-absorption correction method of HPGe gamma spectrocopy analysis system using check source. Journal of Radiological Science and Technology. 2022;45(6):523-9. DOI: 10.17946/JRST.2022.45.6.523
  13. ISO 18589-3:2015(E). Measurement of radioactivity in the environment-soil- Part 3: Test method of gamma-emitting radionuclides using gamma-ray spectrometry. International Organization for Standardization; 2015. Retrieved from https://www.iso.org/Standards
  14. EML HASL-300. Method Ga-01-R: Gamma Radioassay. 4.5.2 Radiometrology. 1997. Retrieved from https://www.epa.gov/esam/eml-hasl-300-method-ga-01-r-gamma-radioassay
  15. Be MM, Chiste V, Dulieu C, Kellett MA, Mougeot X, Arinc A, et al. Monographie BIPM-5. Retrieved from https://www.bipm.org/en/publications/monographies
  16. ISO/IEC 17043:2023. Conformity assessment General requirements for the competence of proficiency testing providers. International Organization for Standardization; 2023. Retrieved from https://www.iso.org/Standards
  17. Lee JE, Kim HJ, Kye YU, Lee DY, Kim JK, Jo WS, et al. Source and LVis based coincidence summing correction in HPGe gamma-ray spectrometry. Nuclear Engineering and Technology. 2022;54(5):1754-9. DOI: 10.1016/j.net.2021.11.008