RF System of the SPring-8 Upgrade Project
RF System of the SPring-8 Upgrade Project
复制标题
SPring-8升级项目射频系统
DOI：
10.18429/jacow-ipac2016-mopmw009
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
T. Sugimoto
中科院分区：
文献类型：
--
作者：
H. Ego;T. Asaka;T. Fujita;T. Fukui;N. Hosoda;T. Inagaki;K. Kobayashi;C. Kondo;H. Maesaka;T. Masuda;S. Matsubara;T. Ohshima;T. Sakurai;T. Sugimoto
在SPring-8储存环的升级项目中，束流能量从8 GeV降低到6 GeV。升级采用多弯曲光学器件，使光束发射度约为100 pm.rad，并将射频加速腔的直线段缩短了30%。共16个钟形单电池腔安装在区段中，并产生所需的加速电压为7 MV。使用中的老式模拟LLRF系统将被基于欠采样方案和MTCA.4标准的紧凑型数字系统所取代。SACLA直线加速器将被用作低发射度束到环的注入器。我们建立了一个定时系统，以注入到一个目标桶的位置在环内的时间偏差为3 ps。由于X射线自由电子激光的运行和束流注入必须按需平衡，因此将在SACLA LLRF系统中实现对SACLA束流参数的逐脉冲控制。
In the upgrade project of the SPring-8 storage ring, a beam energy is lowered from 8 to 6 GeV. The upgrade employs multi-bending optics to have a beam emittance of approximately 100 pm.rad and shortens the straight sections available for RF accelerating cavities by 30%. The total 16 bell-shaped single-cell cavities are installed in the sections and generate a needed accelerating voltage of 7 MV. The old-fashioned analogue LLRF system in use is to be replaced with a compact digital system based on the under-sampling scheme and the MTCA.4 standard. The SACLA linac is to be used as an injector of a lowemittance beam to the ring. We build a timing system to inject the beam to a target bucket-position in the ring within a time deviation of 3 ps. Since the X-ray FEL operation and the beam injection must be balanced on demand, a pulse-by-pulse control system for beam parameters of SACLA is going to be implemented to the SACLA LLRF system.
影响因子：
35
作者：
Ishikawa, Tetsuya;Aoyagi, Hideki;Kumagai, Noritaka
通讯作者：
Kumagai, Noritaka