Beam Tests Using a Wide Band RF System Prototype in the CERN PS Booster
Beam Tests Using a Wide Band RF System Prototype in the CERN PS Booster
复制标题
在 CERN PS 增强器中使用宽带射频系统原型进行波束测试
DOI：
10.18429/jacow-ipac2015-wepha015
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
J. Sánchez
中科院分区：
文献类型：
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作者：
M. Paoluzzi;M. Angoletta;A. Findlay;M. Haase;M. Jaussi;Anthony Jones;J. Molendijk;J. Sánchez
在LHC注入器升级项目（LIU）的框架内，并考虑到现有CERN PS助推器（PSB）RF系统的完全更换，2012年在机器中安装了一个小规模，宽带原型腔。在使用该有限设备进行了令人鼓舞的测试之后，一个几乎全尺寸的RF系统原型已经在长周期1（LS 1）期间建造并安装在PSB中。该模块化Finemet®加载系统覆盖0.5 ~ 4 MHz频段，对应于h=1和h=2频率范围。它使用固态功率级，并包括快速射频反馈的光束负载补偿。新的专用数字低电平电子设备实现了光束加速所需的所有回路，并与通用PSB控制系统接口。它允许在射束旋转频率的基波或二次谐波下使用新设备，以及与现有RF系统并行操作。本文介绍了该项目的低电平和功率部分，并报告了迄今为止取得的成果和经验。
: In the framework of the LHC Injectors Upgrade project (LIU) and in view of a complete replacement of the existing CERN PS Booster (PSB) RF systems, a small scale, wide band prototype cavity was installed in 2012 in the machine. Following the encouraging tests done using that limited device, an almost full scale, RF system prototype has been built and installed in the PSB during the Long Shutdown 1 (LS1). This modular, Finemet® loaded system covers the band 0.5 ÷ 4 MHz corresponding to the h=1 and h=2 frequency ranges. It uses solidstate power stages and includes fast RF feedback for beam loading compensation. New dedicated digital low level electronics implement all loops required for beam acceleration and interfaces with the general PSB control system. It allows using the new equipment at fundamental or second harmonic of the beam revolution frequency as well as operating it in parallel with the existing RF systems. This paper describes the low level and power sections of the project and reports about the achieved results and experience built up so far.