Stochastic cooling studies in RHIC

Author

Blaskiewicz, M. ; Brennan, J.M. ; Cameron, P. ; Wei, J.

Author_Institution

Brookhaven Nat. Lab., Upton, NY, USA

Volume

1

fYear

2003

fDate

12-16 May 2003

Firstpage

394

Abstract

Emittance growth due to Intra-Beam Scattering significantly reduces the heavy ion luminosity lifetime in RHIC. Stochastic cooling of the stored beam could improve things considerably by counteracting IBS and preventing particles from escaping the rf bucket. High frequency bunched-beam stochastic cooling is especially challenging but observations of Schottky signals in the 4-8 GHz band indicate that conditions are favorable in RHIC. We report here on measurements of the longitudinal beam transfer function carried out with a pickup/kicker pair on loan from FNAL TEVATRON. Results imply that for ions a coasting beam description is applicable and we outline some general features of a viable momentum cooling system for RHIC.

Keywords

accelerator RF systems; beam handling techniques; ion accelerators; particle beam diagnostics; storage rings; 4 to 8 GHz; FNAL TEVATRON; Intra-Beam Scattering; RHIC; emittance growth; heavy ion luminosity lifetime; longitudinal beam transfer function; pickup/kicker pair; rf bucket; stochastic cooling studies; stored beam; Bandwidth; Cooling; Drives; Frequency; Gold; Particle beams; Power measurement; Protons; Stochastic processes; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1288933

Filename

1288933