基于NCRP No.151报告建立钴治疗机机房周围环境辐射水平的估算模式  

Establishing the Estimation Model on Radiation Level at the Ambience of ^(60)Co Radiotherapy Treatment Room Based on NCRP REPORT No.151.

作　　者：杨海友[1] 刘丽萍[1] 梁月琴[1] 于水[1] 

机构地区：[1]军事医学科学院生物医学分析中心,北京100850

出　　处：《中国辐射卫生》2009年第2期154-156,共3页Chinese Journal of Radiological Health

摘　　要：目的建立钴治疗机机房周围环境辐射水平的估算模式。方法在NCRP No.151报告《MV级X和γ射线放疗设备的屏蔽设计和评价》给出的MV级医用电子直线加速器机房周围环境辐射水平估算方法的基础上,对公式进行了适当的调整。结果进一步拓展了NCRP No.151报告估算模式的应用范围,为钴治疗机机房周围环境辐射水平的估算提供了一种模式。结论该估算模式对钴治疗机机房周围环境辐射水平的估算具有一定的参考价值。Objective To establish the estimation model to evaluate the radiation level at the ambience of 60Co radiotherapy treatment room. Methods The estimation model derives from NCRP REPORT No. 151 - ＂Structural Shielding Design and Evaluation for Megavoltage X - and Gamma - Ray Radiotherapy Facilities＂ by making appropriate adjustment, which presents the calculation methods on radiation level at the ambience of megavohage medical electron linear accelerator treatment room. Results The application scope of estimation model from NCRP REPORT No. 151 is extended to γ- radiotherapy facilities, and it can be regarded as a new model for calculating the radiation level at the ambience of 60Co radiotherapy treatment room. Conclusion The estimation model has certain reference value to evaluate the radiation level at the ambience of 60Co radiotherapy treatment room.

关 键 词：NCRP No.151报告 钴治疗机 辐射水平 估算模式 

分 类 号：X591[环境科学与工程—环境工程]