The results show that, without the flattening filter, the beam-on time reduces for both techniques.
结果表明，不使用均整器，两种技术的出束时间都减少；SMLC调强子野数目和叶片运动时间略有增加。
参考来源 - 均整器和电子射野影像系统在调强放射治疗中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
不使用均整器可以提高加速器的输出剂量率，减少出束时间。
Theoretically, without the flattening filter may reduce the treatment delivery time by enhancing the output dose rate.
均整器的使用是为了获得强度分布均匀的较大射野，用于常规治疗。
The flattening filter in the treatment head is used to provide large, uniform x-ray fields for conventional radiotherapy.
本文研究均整器对IMRT治疗实施时间的影响和电子射野影像系统(EPID)在剂量验证中的应用。
This study investigates the influence of flattening filter on the IMRT treatment delivery time and the application of electronic portal imaging device (EPID) in dosimetric verification.
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