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1.
The Measurement of Tune and Phase Space at HLS / Yang Yong Li ; Hong Liu, Jian ; Hua Wang, Jun ; Liu, Zu-ping ; Sun Bao Gen ; Zheng, Kai
Tune and phase space online monitor at the electronic storage ring of Hefei Light Source (HLS) have been realized by using of turn-by-turn beam position data. In this paper, we have compared many methods to compute tune and discussed how to choose the best fitting method for our online tune computing [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3114
2.
HLS Turn-By-Turn System and Its Application / Wang, Jun H ; Li, Wei-min ; Liu, Jian H ; Liu, Zu-ping ; Sun Bao Gen ; Yang Yong Li ; Zheng, Kai
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. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3022
3.
Development of Measurement and Transverse Feedback System at HLS / Wang, Jun H ; He, Duo-hui ; Li, Wei-min ; Liu, Jian H ; Liu, Zu-ping ; Sun Bao Gen ; Yang Yong Li ; Zheng, Kai ; Zhou, Z R
In order to observe and cure coupled bunch (CB) instabilities caused by the high order modes (HOMs) of the RF cavity and the resistive wall impedance of the Ring vacuum chamber, which were ineluctable during the operation of the accelerator, an observer system characterized by bunch by bunch measurement of transverse ßoscillation and longitudinal synchrotron phase oscillation has been constructed and commissioned at Hefei Light Source (HLS); meanwhile a transverse bunch-by-bunch feedback system is under construction. The design and development of the systems, as well as diagnostics results of machine instabilities will be presented in this paper..
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2974
4.
Development and Application of Bunch-by-Bunch Measurement System of HLS / Liu, Jian H ; Hua Wang, Jun ; Pei, Y J ; Sun Bao Gen ; Yang Yong Li ; Zheng, Kai
This paper is intended to present the newly implemented wideband (100MHz) bunch oscillation measurement system, which is in nature a different method from the narrow-band (<5MHz) facilities employed before. Basic formalism and implementation details of the system is introduced to illustrate the function of observing coupled bunch instabilities in time and frequency domain. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2932

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