【摘要】 对医用电子直线加速器房周围环境辐射水平进行了监测。结果表明 :大多数加速器房的环境辐射水平仅略高于环境本底水平 ,若干加速器房的辐射水平明显偏高。偏高的主要原因在于辐射屏蔽设计有误 ,个别加速器房存在防护过度的问题。更多还原

【Abstract】 The monitoring results of the environmental radiation levels around medical electron linear accelerator buildings and problems associated with them are described. The results show the majority of the accelerator buildings have a bit higher radiation levels than the background ones, and some of them are unusurally high. The main reason resulted in high radiation levels is faulty design for the radiation shielding. At the same time, individual cases appeared over protection against the radiation are also indicated.更多还原