Earticle

초록

영어

Background: Recently, the International Commission on Radiological Protection (ICRP) lowered the dose limit for the eye lens from 150 mSv to 20 mSv, highlighting the importance of accurate lens dose estimation. The ICRP reference computational phantoms used for lens dose calculation are mostly based on the data of Caucasian population, and thus might be inappropriate for Korean population. Materials and Methods: In the present study, a detailed Korean eye model was constructed by determining nine ocular dimensions using the data of Korean subjects. The developed eye model was then incorporated into the adult male and female mesh-type reference Korean phantoms (MRKPs), which were then used to calculate lens doses for photons and electrons in idealized irradiation geometries. The calculated lens doses were finally compared with those calculated with the ICRP mesh-type reference computational phantoms (MRCPs) to observe the effect of ethnic difference on lens dose. Results and Discussion: The lens doses calculated with the MRKPs and the MRCPs were not much different for photons for the entire energy range considered in the present study. For electrons, the differences were generally small, but exceptionally large differences were found at a specific energy range (0.5–1 MeV), the maximum differences being about 10 times at 0.6 MeV in the anteroposterior geometry; the differences are mainly due to the difference in the depth of the lens between the MRCPs and the MRKPs. Conclusion: The MRCPs are generally considered acceptable for lens dose calculations for Korean population, except for the electrons at the energy range of 0.5–1 MeV for which it is suggested to use the MRKPs incorporating the Korean eye model developed in the present study.

목차

ABSTRACT
Introduction
Materials and Methods
1. Development of Detailed Korean Eye Model
2. Incorporation of Eye Model into Mesh-Type Reference Korean Phantoms
3. Calculation of Lens Doses
Results and Discussion
1. Detailed Korean Eye Model
2. Lens Doses
Conclusion
Conflict of Interest
Acknowledgements
References

키워드

저자

• Haegin Han [ Department of Nuclear Engineering, Hanyang University, Seoul, Korea ]
• Xujia Zhang [ Department of Nuclear Engineering, Hanyang University, Seoul, Korea ]
• Yeon Soo Yeom [ Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD, USA ]
• Chansoo Choi [ Department of Nuclear Engineering, Hanyang University, Seoul, Korea ]
• Thang Tat Nguyen [ School of Nuclear Engineering and Environmental Physics, Hanoi University of Science and Technology, Hanoi Vietnam ]
• Bangho Shin [ Department of Nuclear Engineering, Hanyang University, Seoul, Korea ]
• Sangseok Ha [ Department of Nuclear Engineering, Hanyang University, Seoul, Korea ]
• Sungho Moon [ Department of Nuclear Engineering, Hanyang University, Seoul, Korea ]
• Chan Hyeong Kim [ Department of Nuclear Engineering, Hanyang University, Seoul, Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  방사선방어학회지 [Journal of Radiation Protection and Research]

• 간기

  계간

• pISSN

  2508-1888

• 수록기간

  1976~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 559 DDC 629