Korean-specific iodine S values for use in internal dosimetry

The use of iodine S values derived using the International Commission Radiological Protection (ICRP) phantoms may introduce significant bias in internal dosimetry for Koreans due to anatomical variability. In the current study, we produced an extensive dataset of Korean S values for selected five io...

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Bibliographic Details
Published inNuclear engineering and technology Vol. 55; no. 12; pp. 4659 - 4663
Main Authors Kwon, Tae-Eun, Chung, Yoonsun, Lee, Choonsik
Format Journal Article
LanguageEnglish
Published Korea (South) Elsevier B.V 01.12.2023
Elsevier
한국원자력학회
Subjects
Internal exposure
Korean phantoms
Specific Absorbed Fraction
Thyroid dose
원자력공학
Thyroid dose
Specific Absorbed Fraction
Korean phantoms
Internal exposure
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Summary:The use of iodine S values derived using the International Commission Radiological Protection (ICRP) phantoms may introduce significant bias in internal dosimetry for Koreans due to anatomical variability. In the current study, we produced an extensive dataset of Korean S values for selected five iodine radioisotopes (I-125, I-129, I-131, I-133, and I-134) for use in radiation protection. To calculate S values, we implemented Monte Carlo simulations using the Mesh-type Reference Korean Phantoms (MRKPs), developed in a high-quality/fidelity mesh format. Noticeable differences were observed in S value comparisons between the Korean and ICRP reference phantoms with ratios (Korean/ICRP) widely ranging from 0.16 to 6.2. The majority of S value ratios were lower than the unity in Korean phantoms (interquartile range = 0.47-1.28; mean = 0.96; median = 0.69). The S values provided in the current study will be extensively utilized in iodine internal dosimetry for Koreans.
ISSN:1738-5733
2234-358X
DOI:10.1016/j.net.2023.09.005