医科达Axesse医用直线加速器辐射水平测试
Radiation Level Testing of Elekta Axesse Medical Linear Accelerator
蔡丹婷1
作者信息
- 1. 南方医科大学珠江医院 (广东广州 510000)
- 折叠
摘要
医用直线加速器在使用过程中具有高辐射性.为了保证放射治疗工作的安全性,医疗机构在医用直线加速器投入使用前需要对其进行辐射水平的测试.该研究对南方医科大学珠江医院新配置的医科达Axesse医用直线加速器进行了辐射水平的测试,包括防护水平、通风情况测试.另外,对相关工作人员和公众的潜在辐射危害进行了分析.结果显示,各监测位点测得的空气比释动能率均小于最低限值(10 μSv/h),控制室监测位点测得的空气比释动能率均小于最低限值(2.5 μSv/h);机房换气次数为4.9次/h,满足指标要求(>4次/h).直线加速器正常运行时,机房外人员受照剂量均低于国家标准剂量限值的要求.因此,该直线加速器运行安全可靠.
Abstract
Due to the high radiation level of medical linear accelerators during usage,in order to ensure the safety of radiation therapy,before medical linear accelerators are put into use,their radiation level test need to be carried out by medical institutions.In this paper,the radiation level of the newly configured Axesse medical linear accelerator in Zhujiang Hospital of Southern Medical University was tested,including the protection level and ventilation condition test.In addition,an analysis was conducted on the potential radiation hazards for relevant personnel and the public.The results showed that the air kerma rates measured at each monitoring site were all below the minimum limit(10 μSv/h),and the air kerma rates measured at the control room monitoring sites were all below the minimum limit(2.5 μSv/h).The frequency of air exchange in the machine room was 4.9 times/h,which met the requirements of the index(>4 times/h).During normal operation of linear accelerators,the doses to people outside the machine room were lower than the dose limits of the national standard.Therefore,the linear accelerator is safe and reliable.
关键词
直线加速器/防护/辐射危害/通风情况/检测Key words
Linear accelerator/Protection/Radiation hazards/Ventilation conditions/Detection引用本文复制引用
出版年
2024
NETL
NSTL
万方数据