关键词: 
重离子治癌 /
照射野均匀度 /
点扫描 /
栅扫描

摘要: 在论述重离子治癌照射的基本思想及其特点的基础上,着重对磁扫描照射野形成的两种技术路线——点扫描和栅扫描的优缺点进行了分析阐述.初步给出了 HIRFL上的重离子治癌终端磁扫描相关参数. The basic principle and characteristic of irradiation in heavy ion radiotherapy are introduced. Based on the basic principle and characteristic of irradiation in heavy ion radiotherapy, two magnetic scan methods for creating uniform irradiation field--the spot scan and the raster scan, are compared briefly. The parameter requests to the magnetic scanning system of the heavy ion radiotherapy facility planned in IMP(Institute of Modern Physics) are presented.