Measurements of intra-beam scattering growth times with gold beam below transition in RHIC

Author

Fischer, W. ; Bai, M. ; Blaskiewicz, M. ; Brennan, J.M. ; Cameron, P. ; Connolly, R. ; Lehrach, A. ; Parzen, G. ; Tepikian, S. ; Zeno, K. ; van Zeijts, J.

Author_Institution

Brookhaven Nat. Lab., Upton, NY, USA

Volume

4

fYear

2001

fDate

2001

Firstpage

2857

Abstract

While RHIC is filled with beam, bunches are stored for up to several minutes at the injection energy before acceleration starts. In gold operation, the RHIC injection energy is below transition. A bunch length increase, and correspondingly an increase in the longitudinal emittance, can lead to particle loss during transition crossing and rebucketing into the storage buckets. The longitudinal growth of gold beams in RHIC at injection is dominated by intra-beam scattering. Measurements of longitudinal growth times are presented and compared with computations

Keywords

colliding beam accelerators; ion accelerators; particle beam stability; storage rings; RHIC injection energy; bunches; gold operation; injection energy; intra-beam scattering; longitudinal growth times; particle loss; rebucketing; storage buckets; transition crossing; Gold; Ion beams; Length measurement; Light scattering; Monitoring; Particle beam injection; Particle scattering; Size measurement; Testing; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Conference_Location

Chicago, IL

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.987934

Filename

987934