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http://dx.doi.org/10.14407/jrp.2014.39.2.096

Performance test of urine bioassay through participation in the NRIP  

Ha, Wi-Ho (National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences)
Yoo, Jaeryong (National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences)
Yoon, Seokwon (National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences)
Lee, Seung-Sook (National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences)
Kim, Jong Kyoung (Department of Nuclear Engineering, Hanyang University)
Publication Information
Journal of Radiation Protection and Research / v.39, no.2, 2014 , pp. 96-102 More about this Journal
Abstract
Urine bioassay has been widely used for internal dosimetry due to simple process of sampling and measurement. In this paper, we participated in the NRIP (NIST Radiochemistry Intercomparison Program) hosted by US NIST to carry out a reliable performance test of urine bioassay and introduced the measurement method and results of NRIP-2013. In customary exercise with 60 days of reporting time, bioassay results of 12 radionuclides in the synthetic urine samples were acceptable based on the performance criteria of ANSI N13.30. In emergency preparedness exercise with 8 hours of reporting time, bioassay results of 9 radionuclides showed that differences ranged from -35% to 45%. However, we concluded that urine bioassay applied for emergency preparedness exercise would be applicable for rapid screening and estimation of internal exposure within a difference of ${\pm}45%$ in the event of radiological accidents.
Keywords
Internal dosimetry; Urine bioassay; Performance test; Radioactivity measurement;
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