A study of betatron and momentum collimators in RHIC

Author

Trbojevic, D. ; Stevens, A.J. ; Harrison, M.A. ; Dell, E. ; Peggs, S.

Author_Institution

Brookhaven Nat. Lab., Upton, NY, USA

Volume

1

fYear

1997

fDate

12-16 May 1997

Firstpage

219

Abstract

The Relativistic Heavy Ion Collider (RHIC) has two interaction regions where β*=1-2 m, with large detectors PHENIX and STAR. The transverse and longitudinal emittances are expected to double in size between one to two hours due to intra-beam scattering which may lead to transverse beam loss. Primary betatron collimators are positioned in the ring to allow efficient removal of particles with large betatron amplitudes. We have investigated distributions and losses coming from the out-scattered particles from the primary collimators, as well as the best positions for the secondary momentum and betatron collimators

Keywords

beam handling equipment; colliding beam accelerators; ion accelerators; storage rings; synchrotrons; PHENIX; RHIC; Relativistic Heavy Ion Collider; STAR; betatron amplitudes; betatron collimators; interaction regions; intra-beam scattering; longitudinal emittances; momentum collimators; out-scattered particles; transverse emittances; Apertures; Collimators; Detectors; Gold; Ion beams; Laboratories; Particle beams; Particle scattering; Polarization; Protons;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.749598

Filename

749598