Title :
Experimental study of the ion trapping phenomenon in TRISTAN-AR
Author :
Matsumoto, S. ; Fukuma, H. ; Ohmi, K. ; Tobiyama, M. ; Kikutani, E. ; Suetake, M. ; Satoh, K. ; Funakoshi, Y.
Author_Institution :
High Energy Accel. Res. Organ., Ibaraki, Japan
Abstract :
The betatron oscillation of the electron beam in TRISTAN AR was observed in multi-bunch operation in which every a few tens of RF buckets are selected to be filled with beam. The transverse coupled bunch instability was observed and its growth time was measured by utilizing the feedback system. The betatron sideband spectrum was distorted when most of the selected buckets were filled. The conjecture of ion trapping explains the facts that we observed
Keywords :
accelerator RF systems; colliding beam accelerators; electron accelerators; electron beams; particle beam stability; particle traps; storage rings; RF buckets; TRISTAN-AR; betatron oscillation; betatron sideband spectrum; electron beam; feedback system; growth time; ion trapping phenomenon; multibunch operation; transverse coupled bunch instability; Electron accelerators; Electron beams; Electron traps; Extraterrestrial measurements; Feedback; Frequency; Ion accelerators; Ion beams; Particle beams; Time measurement;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.749624
