Title :
Vertical Beam Size Measurement by Streak Camera Under Colliding and Single Beam Conditions in KEKB
Author :
Ikeda, H. ; Flanagan, J.W. ; Fukuma, H. ; Funakoshi, Y. ; Hiramatsu, S. ; Mitsuhashi, T. ; Ohmi, K. ; Uehara, S.
Author_Institution :
KEK, High Energy Accelerator Research Organization, Ibaraki 305-0801, Japan, hitomi.ikeda@kek.jp
Abstract :
Beam behaviour of KEKB was studied by measurement of the beam size using a streak camera. The effects of electron-clouds and beam-beam interactions on the vertical beam size were examined in beam collision. We injected a test bunch of positrons 2 RF buckets after a bunch to enhance the electron cloud effect and changed electron beam conditions to see the beam-beam effect. The beam size was also measured in a single positron beam condition and compared with that during collision. The result of the measurement is reported in this paper.
Keywords :
Cameras; Clouds; Electron beams; Filling; Optical interferometry; Optical refraction; Positrons; Radio frequency; Size measurement; Testing;
Conference_Titel :
Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the
Print_ISBN :
0-7803-8859-3
DOI :
10.1109/PAC.2005.1591410
