Development of environmentally friendly flexible medical X-ray shielding materials and analysis and optimization of their protective performance
10.3760/cma.j.cn112271-20230413-00117
- VernacularTitle:环保型柔性医用X射线防护材料研制及其防护性能分析与优化
- Author:
Tianyi QIU
1
;
Guoqing ZHANG
;
Minjuan WANG
;
Tianlai LI
;
Boyu WANG
;
Yang LIU
;
Boning LI
;
Lin YUAN
Author Information
1. 西安工程大学理学院，西安 710048
- Keywords:
X-ray shielding;
Flexible material;
Thermoplastic elastomer;
Monte Carlo
- From:
Chinese Journal of Radiological Medicine and Protection
2023;43(12):1016-1021
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To develope and analyze and optimize the performance of some kinds of environmentally friendly flexible X-ray protective materials in attempt to tackle the various environmental and high energy consumption problems in the development of traditional medical X-ray protective clothing.Methods:The Monte Carlo program was used to establish a simplified model of medical X-ray tube. The aim was to carry out numerical simulation and prediction of the shielding materials′ performance against X-ray, prepare the flexible X-ray shielding materials through experiments and test and verify the their shielding performances The development and optimization path was also obtained by comparing the result between simulation and experiment.Results:Bi was the preferred alternative to toxic Pb elements, while W was able to compensate for weak X-ray absorption zone of Bi. The shielding efficiency of the composite material doped with 25% Bi+ 25% W was able to reach 77.8% and 66.3% at 80 and 120 kV p tube voltages, respectively. Conclusions:With both the selection of elements and the optimization of functional particles, the combination of W and Bi is an economical, environmentally friendly, and efficient shielding way within the energy range of medical diagnostic X-rays. The numerical simulation helps reduce experimental costs, shorten the research period, and improve the design efficiency of X-ray shielding materials.
