Performance of the SRRC storage ring and wiggler commissioning

Author

Kuo, C.C. ; Hsu, K.T. ; Luo, G.H. ; Lau, W.K. ; Wang, Ch. ; Chang, H.P. ; Chang, L.H. ; Wnag, M.H. ; Lee, J.C. ; Hsue, C.S. ; Weng, W.T. ; Liu, Y.C.

Author_Institution

Synchrotron Radiat. Res. Center, Hsinchu, Taiwan

Volume

1

fYear

1995

fDate

1-5 May 1995

Firstpage

582

Abstract

A 1.3 GeV synchrotron radiation storage ring at SRRC has been operated for more than a year since October 1993. Starting from April 1994, the machine has been open to the user community. In February 1995, we installed a wiggler magnet of 1.8 tesla 25-pole in the ring and successfully commissioned. The machine was scheduled for the users´ runs from the middle of April this year. We describe the performance of the machine without the wiggler magnet system and then report the wiggler effects on the beam dynamics of the storage ring, e.g., tune shift, beta-beating, orbit change, nonlinear dynamics effect, etc. Some measurements are compared with the model prediction and agreement between them was fairly good. Possible actions to minimize wiggler effects have been taken, such as orbit correction as a function wiggler gap change. The machine improvement projects, such as longitudinal and transverse damping systems as well as an orbit stability feedback system are under construction and will be in use soon

Keywords

accelerator magnets; colliding beam accelerators; electromagnets; electron accelerators; particle beam dynamics; particle beam stability; storage rings; wigglers; 1.3 GeV; 25-pole magnet; SRRC storage ring performance; beam dynamics; beta-beating; longitudinal damping; nonlinear dynamics effect; orbit change; orbit stability feedback system; synchrotron radiation storage ring; transverse damping; tune shift; wiggler commissioning; wiggler gap change; wiggler magnet; Damping; Extraterrestrial measurements; Feedback; Nonlinear dynamical systems; Predictive models; Stability; Storage rings; Structural beams; Synchrotron radiation; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1995., Proceedings of the 1995

Conference_Location

Dallas, TX

Print_ISBN

0-7803-2934-1

Type

conf

DOI

10.1109/PAC.1995.504726

Filename

504726