Log-ratio-circuit-based turn-by-turn system of HLS

wang jun-hua; li wei-min; sun bao-gen; liu zu-ping; liu jian-hong; pei yuan-jie; wang gui-cheng

Volume 14 Issue 04

Aug. 2002

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Article Navigation > High Power Laser and Particle Beams > 2002 > 14(04): 0-

tang jun-ping, dong qin-xiao, bo hai-wang, et al. Development of 300 kV pulse source with 3 ns risetime[J]. High Power Laser and Particle Beams, 2007, 19.

Citation:

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.

tang jun-ping, dong qin-xiao, bo hai-wang, et al. Development of 300 kV pulse source with 3 ns risetime[J]. High Power Laser and Particle Beams, 2007, 19.

Citation:

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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Log-ratio-circuit-based turn-by-turn system of HLS

1.
NSRL,University of Science and Technology of China,P.O.Box 6022,Hefei 230029,China

Publish Date: 2002-08-15

Abstract

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
- turn-by-turn,
- bpm,
- log-ratio technique,
- phase space measurement

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