医用加速器机房迷路最优化设计的初步探讨

Discussion on the optimization design on mazes of medical linear accelerator facilities

目的探讨医用加速器机房中L型迷路和Z型迷路之间的差异。方法选择典型医用电子直线加速器作为研究对象,通过对加速器MV-X射线模式下工作条件的进一步分析,参考NCRP51号报告及有关文献中迷路设计方法进行研究。结果采用Z型迷路可以有效降低治疗室出入口的辐射水平。结论医用加速器机房采用Z型迷路设计是最优化设计的有益参考。

Objective To discuss the differences on the design and evaluation between the L-type and Z-typo mazes of typical medical electric linear accelerator. Methods The study is conducted by choosing some typical medical electric linear accelerators used in China, further analyzing on the running conditions of the accelerators in the mode of MV-X-ray, and referring to the late NCRP Report 51 and other references. Results The radiation levels at the access to therapy room are effectively reduced by Z-type mazes. Conclusions The Ztype mazes are advisable during the optimization design.