Title :
Observation of quadrupole wake-field effects in the KEKB linac
Author :
Ogawa, Y. ; Suwada, T.
Author_Institution :
KEK, Tsukuba, Japan
Abstract :
The characteristics of quadrupole wake-field effects were investigated using a single-bunch, high-intensity primary electron beam for positron production at the KEKB linac. X-Y coupling phenomena in transverse motion, which are inherent in the instability due to quadrupole wake-field effects in linacs, were examined; their dependence on the initial beam kicks was measured as a quadratic nature. The results are in good agreement with a simple calculation based on a two-particle model
Keywords :
electron accelerators; linear accelerators; particle beam bunching; particle beam stability; KEKB linac; X-Y coupling phenomena; positron production; quadrupole wake-field effects; single-bunch high-intensity primary electron beam; transverse motion; two-particle model; Electron beams; Extraterrestrial measurements; Linear particle accelerator; Motion measurement; Mutual coupling; Optical beams; Optical coupling; Particle beams; Positrons; Production;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988299
