关于合肥光源储存环上产生短束团的方法

朱亮静 （National Synchrotron Radation Laboratory & SLAC National Accelerator Lab oratory）

Detail:

Abstract: A scheme with two superconducting RF cavities (sc-cavities) is designed to upgrade electron storage rings with odd buckets into multi-length bunches. In this talk, Hefei Light Source II (HLS II) is given as an example for odd buckets. In accordance with 45 buckets, which is multiples of 3, three different length of bunches generated simultaneously is proposed in the presently applied user optics. The final result is to, without low- optics, fill HLS II with long bunches of 50 ps length, medium bunches of 23 ps and short bunches of 6 ps. Each third buckets can be filled with short bunches, of which the current limit is up to 6.6 mA, more than 60 times the value of low-mode. Moreover, particles tracking about beam dynamics performed by ELEGANT and calculations about beam instabilities will also be presented.