Title :
Space charge effect on betatron oscillations
Author :
Fung, K.M. ; Chu, C.M. ; Hsi, W.C. ; Lee, S.Y. ; Ahrens, L. ; Smith, G. ; Williams, N.
Author_Institution :
Indiana Univ., Bloomington, IN, USA
Abstract :
The transverse motion of the beam at the AGS was studied by analyzing the coherent beam signals, digitized at a 10 ns interval, at various beam intensities. It was found that the coherent vertical tune shift of the centroid is consistent with the space charge model due to the image charge and current induced on the vacuum chamber wall. An enhanced linear coupling at a high intensity was also observed
Keywords :
betatrons; particle beam diagnostics; particle beam dynamics; proton accelerators; space charge; synchrotrons; AGS; beam intensities; betatron oscillations; centroid; coherent beam signals; coherent vertical tune shift; image charge; space charge; transverse motion; Brightness; Image motion analysis; Laboratories; Motion analysis; Niobium; Particle beams; Signal analysis; Space charge; Stability; Synchrotrons;
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.1999.792662
