Single bunch collective effects in the ALS

Author

Byrd, J.M. ; Corlett, J.N. ; Renner, T.

Author_Institution

Lawrence Berkeley Lab., CA, USA

Volume

4

fYear

1995

fDate

1-5 May 1995

Firstpage

2441

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 Z_y, _eff=155 kΩ/m and Z_x,_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;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1995., Proceedings of the 1995

Conference_Location

Dallas, TX

Print_ISBN

0-7803-2934-1

Type

conf

DOI

10.1109/PAC.1995.505577

Filename

505577