摘要
在原有的ＨＩＲＦＬＳＦＣ引出系统基础上，设计了两个无线圈磁通道。一个通道将ＳＦＣ边缘场改变成正梯度的线性分布场，使引出束流在径向聚焦；另一个通道屏蔽一部分边缘场，使引出束向大半径方向偏转；此外，还设计了１２０°对称的假磁通道，以平衡磁通道给ＳＦＣ带来的一次谐波扰动场。实际的测磁结果表明，磁通道达到了设计的理论要求。此设计完善了ＳＦＣ束流引出系统。
Based on the original beam extraction system of HIRFL SFC,two magnet channek were de-signed to improve the extraction efficiency of SFC and the beam quality. With the special iron dis-tribution of one channel,the SFC fringe field was modified to focus the radial beam;with the C-shape structure of another magnet channel, the SFC fringe magnet field was shielded partially to deflect the extraction beam,Besides, two dummy magnet channels were designed to balance the first order harmonic interrupting field which was yielded by magnet channels.This design perfected the SFC extraction svstem.
出处
《核科学与工程》
CSCD
北大核心
1994年第4期357-363,共7页
Nuclear Science and Engineering
