Monte Carlo simulation and analysis of eye lens dose of the first operator in interventional therapy
10.13491/j.issn.1004-714X.2023.06.001
- VernacularTitle:介入治疗第一术者眼晶状体受照剂量蒙特卡罗模拟与分析
- Author:
Shengnan FAN
1
;
Qin XIE
2
;
Mengxue LI
1
;
Xiao XU
3
;
Jun DENG
1
Author Information
1. National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088 China.
2. University of South China, Hengyang 421000 China.
3. Inner Mongolia Comprehensive Disease Prevention and Control Center, Hohhot 010000 China.
- Publication Type:OriginalArticles
- Keywords:
Interventional therapy staff;
Eye lens dose;
Monte Carlo simulation
- From:
Chinese Journal of Radiological Health
2023;32(6):597-602
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a model for estimating the eye lens dose of the first operator in interventional therapy based on the Monte Carlo simulation, and to provide a scientific basis for the rapid and accurate evaluation of the eye lens dose for radiation workers in interventional therapy. Methods Based on the MIRD phantom and eye model for adult Chinese males, the MCNPX program was used to establish the physical model to calculate the spatial distribution of radiation field and eye lens dose for the first operator. A GR200 Type A LiF (Mg, Cu, P) thermoluminescence dosimeter was used for experimental measurement to verify the simulation results. Results Monte Carlo simulation and experimental measurements showed that the spatial distribution of radiation field was symmetrical. Compared with the measured doses, the errors of the simulated eye lens dose of the first operator were between −8.3% and 7.3%. The dose of the left eye lens was higher than that of the right eye. Conclusion The Monte Carlo model constructed in this study initially realizes the simulation of eye lens dose of the first operator in interventional therapy. In the future, the model will be further optimized based on irradiation parameters such as exposure time, tube voltage, tube current, and projection direction used in clinic practice, so as to more accurately evaluate the eye lens dose of interventional therapy staff.
