Structure and working principle of multi leaf collimator for radiation therapy are introduced.
简述了医学辐射治疗用自动多叶光栅控制系统的设计与实现。
Purpose to study the clinical applying value of multi-leaf collimator.
目的：研究多叶准直器在临床的应用价值。
The result proves that the efficiency of multi-pin-hole collimator is indeed higher than that of single-pinhole collimator for our hypothetical model.
结果表明，所假设模型基础上，多针孔成像确实在一定程度上要比单针孔成像探测效率高。
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