目的了解内蒙古地区医用电子直线加速器的性能状况,发现医用电子直线加速的现存问题,提高放射治疗的质量。方法选取全区全部27台医用电子直线加速器最为研究对象,按照国家相关标准进行检测。结果 27台加速器初检合格率77.78%,调试后合格率为88.89%。结论全区加速器整体合格率逐年上升,但个别加速器仍需进一步调试。 Objective To understand the performance of medical electron linear accelerator in Inner Mongolia and to find the existing problems of medical electron linear acceleration and to improve the quality of radiation therapy. Methods All the 27 medical electron linacs in this area were selected as the most studied subjects and tested in accordance with relevant national standards. Results The initial qualification rate of 27 accelerators was 77.78%, and the passing rate after commissioning was 88.89%. Conclusion The overall qualified rate of accelerators in the region has been increasing year by year, but individual accelerators still need further debugging.