Title :
Progress of the longitudinal feedback system and associated beam observations in TLS
Author :
Lau, W.K. ; Chang, L.H. ; Chou, P.J. ; Hsu, K.T. ; Kuo, C.H. ; Wang, M.H. ; Yang, T.T. ; Yeh, M.S.
Author_Institution :
SRRC, Hsinchu, Taiwan
Abstract :
A digital feedback control system against longitudinal coupled-bunch instability is being developed for the Taiwan Light Source (TLS). This system is designed to stabilize bunch-phase oscillation of each of the 200 electron bunches in the TLS storage ring, and it operates at a bunch crossing frequency of 500 MHz. Two innovative aspects of this system are: (1) the special design of the digital signal processing (DSP) electronics, which run at a peak data rate of 500 Mbytes per second, and (2) the compact broadband longitudinal kicker for bunch-phase correction. Recent progress of this work and preliminary results of associated observations of beam longitudinal-dynamics will also be reported
Keywords :
accelerator control systems; computerised control; electron accelerators; feedback; particle beam bunching; signal processing; storage rings; TLS; Taiwan Light Source; beam longitudinal-dynamics; broadband longitudinal kicker; bunch crossing frequency; bunch-phase correction; bunch-phase oscillation; digital feedback control system; digital signal processing; longitudinal coupled-bunch instability; longitudinal feedback system; Bandwidth; Digital signal processing; Digital signal processing chips; Feedback control; Frequency; Optical coupling; Phase detection; Signal processing; Storage rings; Structural beams;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.795481
