CERN Accelerating science

Article
Title	HLS Turn-By-Turn System and Its Application
Author(s)	Wang, Jun H ; Li, Wei-min ; Liu, Jian H ; Liu, Zu-ping ; Sun Bao Gen ; Yang Yong Li ; Zheng, Kai
Affiliation	(USTC/NSRL, Hefei, Anhui)
Publication	2005
In:	21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3022
Subject category	Accelerators and Storage Rings
Abstract	Design and experimental application of the turn-by-turn system of Hefei Light Source (HLS) are presented in this paper. The front-end signal measurement adopts a log-ratio electronics circuitry. The system is designed to be capable of up to 2 seconds data acquisition. Injection kickers are used to excite beam for monitoring ß oscillation and damping rate. Some of experimental applications are also illustrated, in commission of both the upgraded injection system of HLS and the lower frequency feedback system. The results shows that in order to improve the accumulation of the injected beam, it is very necessary to investigate integral magnet fields equilibrium of injected system and proper measures to control restrain remnants ß-oscillation caused by the injected system error.