【摘要】 介绍了在ＨＩＲＦＬ注入器ＳＦＣ上进行的中心区、聚束器系统和轴向注入 束运线的设计、加工和调试结果．中心区的设计采用了两种注入半径及相应的 两套螺旋式静电偏转镜，解决了高频电压在某些工作区域偏低及三次谐波加速 时轴向注入线上空间电荷效应较为严重的问题．新的锯齿波聚束器系统不仅可 以提高聚束效率，而且还提出了采用半频聚束模式以提高ＳＦＣ与主加速器ＳＳＣ 的纵向匹配效率．新设计的轴向注入束运线配备了两台在线 ＥＣＲ离子源，提高 了电荷态分辨能力和注入相空间匹配能力，在提高注入效率的同时还改善了离 子源及束运线的工作环境和调束手段．更多还原

【Abstract】 The article presents the study and new development at SFC, the HIRFL injector cyclotron. It includes the new central region, the new buncher system and the new axial injection line. It introduces the half-frequency bunching method to increase the longitudinal matching efficiency between the injector and the main cyclotron and the special treatment for the space charge effect by using two injection parameters. The constant orbit acceleration with small variation is introduced to solve the contradiction of the lower RF voltage and less turn number. Two on-line ECR ion sources, high charge state resolving power and other improvements on the injection line have been included.更多还原