Dafne横向反馈系统的快速电子学
Fast Electronics for the Dafne Transverse Feedback Systems
摘要：
在DAFNE上安装了用于控制正电子和电子主环中垂直耦合束团不稳定性的横向反馈系统。它们分别于2000年6月和9月开始运作。对于水平面，类似的系统已于2001年夏季安装，但冲击功率较小。设计规格和基本的系统概念。采用数字信号处理器和双端口RAM实现了实时逐束偏移校正。在最大聚束频率（368 MHz）下进行快速模数采样。该系统以全速管理8位数据的连续流，并且能够反转符号或将任何束组合的输出置零。从数字到模拟的转换产生输出校正信号。
英文摘要：
Transverse feedback systems for controlling the vertical coupled-bunch instabilities in the positron and electron main rings are installed at DAFNE. They started to be operative respectively from June and September 2000. For the horizontal plane, similar systems have been installed in summer 2001 with less kicker power. Design specifications and the basic system concepts are presented. Real time bunch-by-bunch offset correction is implemented using digital signal processors and dual-port RAM's. Fast analog to digital sampling is performed at the maximum bunch frequency (368 MHz). The system manages at full speed a continuous flow of 8-bits data and it has the capability to invert the sign or put to zero the output for any combination of bunches. A conversion from digital to analog produces the output correcting signal.
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