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在重离子加速器辐照应用过程中,离子束流的均匀性好坏对被辐照产品的质量起决定作用。影响束流均匀性的因素主要有加速器束流以及束流扫描装置的稳定程度。研制重离子扫描束流在线监测装置可以在辐照过程中实时记录不同位置束流强度,分析比较辐照扫描束流均匀程度,反馈给加速器控制人员及时调整参数,以保证材料辐照质量。
In the application of heavy ion accelerator irradiation, the uniformity of the ion beam current plays a decisive role on the quality of the irradiated product. The main factors that influence the uniformity of the beam are the accelerator beam and the stability of the beam scanning device. The development of on-line monitoring device for heavy ion scanning beam current can record the beam current in different positions in real time during irradiation. The uniformity of irradiation beam can be analyzed and compared to the accelerator controller to adjust the parameters in time to ensure the material quality.