Beam diffusion measurements at RHIC

Author

Fliller, R.P. ; Drees, A. ; Gassner, D. ; McIntyre, G. ; Peggs, S. ; Trbojevic, D.

Author_Institution

Brookhaven Nat. Lab., Upton, NY, USA

Volume

5

fYear

2003

fDate

12-16 May 2003

Firstpage

2904

Abstract

During a store, particles from the beam core continually diffuse outwards into the halo through a variety of mechanisms. Understanding the diffusion rate as a function of particle amplitude can help discover which processes are important to halo growth. A collimator can be used to measure the amplitude growth rate as a function of the particle amplitude. In this paper we present results of diffusion measurements performed at the Relativistic Heavy Ion Collider (RHIC) with fully stripped gold ions, deuterons, and protons. We compare these results with measurements from previous years, and simulations, and discuss any factors that relate to beam growth in RHIC.

Keywords

colliding beam accelerators; collimators; ion accelerators; particle beam diagnostics; particle beam dynamics; proton accelerators; storage rings; synchrotrons; RHIC; Relativistic Heavy Ion Collider; amplitude growth rate; beam core; beam diffusion measurements; collimator; deuterons; fully stripped ions; gold ions; halo growth; particle amplitude; particle storage; protons; Clocks; Collimators; Current measurement; Gold; Ion accelerators; Particle beam measurements; Particle beams; Performance evaluation; Protons; Superconducting magnets;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

Portland, OR

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1289761

Filename

1289761