Experimental Results on Low Alpha Electron‐Storage Rings
Experimental Results on Low Alpha Electron‐Storage Rings
复制标题
低α电子存储环的实验结果
DOI：
10.1063/1.50301
复制
发表时间：
1995
影响因子：
5.6
通讯作者：
A. Nadji
中科院分区：
文献类型：
--
作者：
D. Robin;H. Hama;A. Nadji
我们报道了在两个同步辐射光源——UVSOR和Super - ACO中进行的实验，在这些实验中，为了减小束团长度，动量压缩因子被降低。通过控制二阶动量压缩因子，UVSOR和Super - ACO已成功将一阶动量压缩因子降低了100倍。在低电流情况下，所得的束团长度小于10皮秒，比正常情况小10倍。本文给出了UVSOR中与电流相关的束团伸长的测量结果，并确定束团伸长的原因是势阱畸变。我们还表明，通过在负动量压缩因子下运行，Super - ACO实现了比正动量压缩时更短的束团伸长和更高的峰值电流。
We report on experiments performed in two synchrotron light sources, UVSOR and Super‐ACO, where the momentum compaction factor is reduced in order to reduce the bunch length. By controlling the second‐order momentum compaction factor, UVSOR and Super‐ACO have managed to reduce the first‐order momentum compaction factor by a a factor of 100. At low current the resulting bunch lengths are less than 10 ps, a factor of 10 smaller than normal. Measurements of current‐dependent bunch lengthening in UVSOR are presented, and the cause of the bunch lengthening is determined to be potential‐well distortion. We also show that by operating with a negative momentum compaction factor, Super‐ACO has achieved shorter bunch lengthening and higher peak currents than at positive momentum compaction.