摘要
目的探讨多叶准直器到位精度的检测方法。方法使用TPS计划系统设计相邻一定距离的条状多叶准直器检测射野,通过射野衔接处剂量的变化来检测多叶准直器的到位精度。结果射野衔接处的剂量变化明显影响多叶准直器的到位精度。结论该方法可以方便地检测多叶准直器的到位精度。
Objective To investigate the detection method of multi-leaf collimator in position accuracy. Methods TPS planning system was used to design the multi-leaf collimator detection beam of adjacent strips, in order to detect the position accuracy of the multi-leaf collimator by changing the beam convergence dose. Results The multi-leaf collimator in position precision for connecting dose effect was obvious. Conclusion This method could easily detect multi-leaf collimator in position accuracy.
出处
《医疗装备》
2016年第17期23-24,共2页
Medical Equipment
关键词
多叶准直器
到位精度
射野
剂量变化
Multi-leaf collimator
Position accuracy
Radiation field
Dosage change
