医用电子回旋加速器扫描束性能和辐射质的研究

Research on Radiation Quality and Scanning Beam Characteristics of Medical Microtron

目的:探讨MM50射线品质测量方法及扫描光子束的性能。方法:用半导体探测器和电离望及RFA-300水箱等测试工具,采用各种测量方法并对结果作比较。结果:测量值与参考值吻合很好,并且各种方法所得的结果相一致。结论:所得的结果与过去的一些文献的理论不太相符,原因是MM50是一种新型的设备,具备多种能级,并拥有先进的电磁扫描控制和稳定的扫描射束,已超越了传统的局限,证明MM50具备更好的射线品质。

Objective: To study the method for measuring the radiation quality and the characteristics of the scanning heam of MM50, Methods: We used diode and ion chambers as well as the RFA-300 water Phantom to measure the radiation quality with different methods and compare the results. Results: The measuring values are good agreement with in the theoretical values and the reference values given by all kinds of means. Conclusion: There is some difference between our result and the conclusion of some reference. We think that the our MM50 is new equipment with many energy levels and advanced magnet scanning control system and stable scan beam. All these certified that the MM50 has good radiation quality and high stable scan beam.