Title :
Single bunch collective effects in the ALS
Author :
Byrd, J.M. ; Corlett, J.N. ; Renner, T.
Author_Institution :
Lawrence Berkeley Lab., CA, USA
Abstract :
We present a summary of measurements of single bunch collective effects in the Advanced Light Source (ALS). These effects include bunch lengthening, energy spread increase, HOM loss measurements, head-tail damping rates, current dependent tune shifts, and transverse mode coupling instability threshold. The longitudinal measurements are consistent with a broadband impedance |Z||/n|eff=0.22±0.07 Ω and transverse measurements indicate broadband impedances of Zy, eff=155 kΩ/m and Zx,eff=58 kΩ/m
Keywords :
X-ray production; beam handling techniques; electron accelerators; particle beam diagnostics; particle beam stability; storage rings; ALS; Advanced Light Source; HOM loss measurements; broadband impedance; bunch lengthening; current dependent tune shifts; energy spread increase; head-tail damping rates; longitudinal measurements; single bunch collective effects; transverse measurements; transverse mode coupling instability threshold; Current measurement; Distortion measurement; Energy measurement; Frequency estimation; Impedance measurement; Laboratories; Length measurement; Light sources; Storage rings; Synchrotrons;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505577
