| 基于对数比电路的HLS turn-by-turn系统 |
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| 引用本文： | 王筠华, 李为民, 孙葆根, 等. 基于对数比电路的HLS turn-by-turn系统[J]. 强激光与粒子束, 2002, 14(04). |
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| 作者姓名： | 王筠华 李为民 孙葆根 刘祖平 刘建宏 裴元吉 王贵诚 |
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| 作者单位： | 1.中国科学技术大学 国家同步辐射实验室, 安徽 合肥 230029 |
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| 摘 要： | 较详细地介绍了合肥光源逐圈束流位置测量(turn-by-turn)系统设计思想和理论分析。该系统是为了判定二期工程升级后的注入系统的注入效率和Damping率,研究Beta振荡和轨迹瞬时变化以及其他束流动力学问题如工作点变化等的研究而研制。选择了新近受到广泛重视的对数比电路服务束流瞬时位置信号的处理。利用工作在204MHz的对数比电路完成被激励束的turn-by-turn位置测量和相空间检测。给出了该系统各部分性能和理论分析结果，介绍了快速多通道ADC在该系统的数据获取中的应用。
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| 关 键 词： | 逐圈束流位置测量 束流位置监测器 对数比技术 相空间测量 |
Log-ratio-circuit-based turn-by-turn system of HLS |
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| wang jun-hua, li wei-min, sun bao-gen, et al. Log-ratio-circuit-based turn-by-turn system of HLS[J]. High Power Laser and Particle Beams, 2002, 14. |
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| Authors: | wang jun-hua li wei-min sun bao-gen liu zu-ping liu jian-hong pei yuan-jie wang gui-cheng |
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| Affiliation: | 1. NSRL,University of Science and Technology of China,P.O.Box 6022,Hefei 230029,China |
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| Abstract: | During the phase II project of NSRL, in order to monitor the injecting effectiveness, damping rate and b oscillation after update of injection and RF system, a turn-by-turn system of HLS has been proposed for storage ring diagnostics. The system employs a log-ratio electronics circuit to characterize machine properties of the updated HLS storage ring. Since the system is based on synchronous process with HLS RF (204MHz) and logarithmically demodulation, that is the electronics working at bunch pas s frequency, so reduce the complexity of signal procession chain and make it easy to implement. On the other hand, the highlighted features of the log-ratio technique such as low noise, high bandwidth and wide dynamic range, as well as response linearity are superior compared with the familiar Di |
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| Keywords: | turn-by-turn bpm log-ratio technique phase space measurement |
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