Evaluation of the radiation shielding effect of the novel self-shielding radiotherapy system Zap-X
10.13491/j.issn.1004-714X.2023.03.013
- VernacularTitle:新型自屏蔽放疗加速器Zap-X系统屏蔽效果评价
- Author:
Qinjian CAO
1
;
Jun TAN
1
;
Yue REN
1
;
Wanchun XIONG
1
;
Xiaofeng WEI
1
;
Wei CHENG
1
Author Information
1. China Institute for Radiation Protection, Taiyuan 030006 China.
- Publication Type:OriginalArticles
- Keywords:
Radiotherapy;
Radiation shielding;
Radiation measurement
- From:
Chinese Journal of Radiological Health
2023;32(3):288-292
- CountryChina
- Language:Chinese
-
Abstract:
Objective Based on the measurement of the ambient dose equivalent rate of points around the novel self-shielding Zap-X radiotherapy system, its self-shielding effect was evaluated and analyzed, and suggestions were proposed for the revision and improvement of related standards in China. Methods The ambient dose equivalent rates were measured at 15 points around the Zap-X system under 6 system operating conditions. The radiation shielding effect of the Zap-X system was evaluated according to the domestic and international radiation protection standards of radiotherapy equipment. Results Measurement of ambient dose equivalent rate and dose evaluation showed that the shielding effect of the Zap-X system met the requirements of international standards, but the dose rates at some points failed to satisfy the reference control levels in the domestic standards. Conclusion Without the shielded treatment room, the self-shielding effect of the Zap-X radiotherapy system is insufficient to meet the requirements of domestic standards for radiation safety and protection. The system should be operated in the treatment room to meet domestic standards.
