Establishment of zebrafish calculation model and calculation of relative dose coefficients
10.3760/cma.j.issn.0254-5098.2021.05.010
- VernacularTitle:斑马鱼计算模型构建与相关剂量系数的计算
- Author:
Huiyuan XUE
1
;
Shixiang ZHANG
;
Kun LIU
;
Yefeng ZHANG
;
Shengri LI
;
Jun WAN
;
Fengmei CUI
;
Yu TU
;
Liang SUN
Author Information
1. 苏州大学医学部放射医学与辐射防护重点实验室 江苏省高校放射医学协同创新中心 215123
- Keywords:
Monte Carlo;
Environmental assessment;
Nuclear power;
Liquid effluent;
Zebrafish
- From:
Chinese Journal of Radiological Medicine and Protection
2021;41(5):374-379
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To assess impact of radiation from nuclear power on the surrounding environment, a dose assessment model was constructed and relevant dose coefficients were determined through refined animal models.Methods:Zebrafish is one of the most important aquatic model animals in the radiation hazard assessment of nuclear power liquid effluent. A geometric model of zebrafish containing internal bones and visceral organ was established for dose estimation. The internal and external dose coefficients (DC) of the zebrafish model were calculated by Monte Carlo method with seven nuclides as the source term, 3H, 40K, 58Co, 60Co, 110Ag, 134Cs, 137Cs, which are common in nuclear liquid effluents and environmental monitoring. Results:The level of nuclide gamma energy determines dose coefficients for external radiation. The dose coefficients of most nuclides in internal organs was higher than that in whole body, and the internal organ dose of 58Co was 165% higher than that in whole body. The internal radiation dose coefficients of the model established in this study was relatively high, and the internal radiation dose coefficients caused by 60Co was 2.6 times of existing ellipsoid model, which suggested that the different internal materials and the choice of different particle types would affect the energy deposition. Conclusions:Refining of model animals is important. Accurate assessment of the organs dose coefficients of model animals is helpful to assess the radiation effects on non-human species.
