Establishment and Application of dose evaluation model for typical mammal in dry region in China
10.3760/cma.j.cn112271-20220524-00219
- VernacularTitle:我国干旱区典型哺乳动物野兔剂量评估模型的建立及应用
- Author:
Han YUAN
1
;
Wenjing GONG
;
Xuelei HAN
;
Shaofei CAO
;
Jianguo LI
Author Information
1. 中国辐射防护研究院，太原 030006
- Keywords:
Rabbit;
Simplified anatomical model;
Dose coefficients;
ERICA tool
- From:
Chinese Journal of Radiological Medicine and Protection
2022;42(10):793-798
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish a simplified anatomical model with the selected rabbits widely distributed in China′s dry region as the reference species and compare the result of internal exposure dose coefficients based on the present mode and ERICA.Methods:A simplified anatomical model based on anatomy and geometry was established for rabbits. Combined with Monte Carlo program, the deposited energy of radionuclide particles in rabbit tissues/organs was obtained, and the internal and external exposure dose coefficient for rabbits was calculated following the empirical formula.Results:Simplified anatomy model-based dose coefficients were 129I 4.81 × 10 -6, 137Cs 4.34 × 10 -5, and 134Cs 3.81 × 10 -5(μGy·h -1)/(Bq·kg -1) for internal exposure and 129I 3.16 × 10 -7, 137Cs 2.39 × 10 -4 and 134Cs 6.22 × 10 -4(μGy·h -1)/(Bq· kg -1) for external exposure. respectively. ERICA-based dose coefficients were 129I 4.44 × 10 -5, 137Cs 1.94 × 10 -4 and 134Cs 2.34 × 10 -4(μGy·h -1)/(Bq·kg -1) for internal exposure and 129I 2.19 × 10 -6, 137Cs 2.52 × 10 -4 and 134Cs 6.95 × 10 -4(μGy·h -1)/(Bq·kg -1) for external exposure, respectively. Conclusions:The simplified anatomical model established is based on the measured data and focuses on the radiation doses to biological tissues/organs, and the calculated result based on the present model are closer to the actual situation, and can provide reference values for the reference biological evaluation of non-human species.
