医用电子直线加速器的性能检测与质量保证

Examining the performance and quality assurance of linear accelerator

目的:分析加速器性能检测的方法和步骤,建立放射治疗的质量保证及检查频数。方法:观察加速器等中心精度,灯光野,激光定位灯改变对摆位精度的影响。结果:通过一系列的精确检测后,放射治疗靶区位置的最大总不精确度可控制在±1mm内。

Objective： To set up the quality assurance and examination frequencies of radiotherapy by analysising the method of examining the linear accelerator. Methods： To observe the conrealtion between the position accuracy and the accuracy of isocenter,lamp field, targeted field,laser lamp. Results：By a serious of accuracy examination,the total inaccuracy of the radiation target volume can be controlled within ±1mm. Conclusion： Quality assurance is the key part of radiotherapy.