Commissioning spin rotators in RHIC

Author

MacKay, W.W. ; Ahrens, L. ; Bai, M. ; Courant, E.D. ; Fischer, W. ; Huang, H. ; Luccio, A.U. ; Montag, C. ; Pilat, E. ; Ptitsyn, V. ; Roser, T. ; Satogata, T. ; Trbojevic, D. ; van Zeijts, J.

Author_Institution

Brookhaven Nat. Lab., Upton, NY, USA

Volume

3

fYear

2003

fDate

12-16 May 2003

Firstpage

1697

Abstract

During the summer of 2002, eight superconducting helical spin rotators were installed into RHIC in order to control the polarization directions independently at the STAR and PHENIX experiments. Without the rotators, the orientation of polarization at the interaction points would only be vertical. With four rotators around each of the two experiments, we can rotate either or both beams from vertical into the horizontal plane through the interaction region and then back to vertical on the other side. This allows independent control for each beam with vertical, longitudinal, or radial polarization at the experiment. In this paper, we present results from the first run using the new spin rotators at PHENIX.

Keywords

beam handling techniques; colliding beam accelerators; ion accelerators; particle beam diagnostics; storage rings; superconducting magnets; synchrotrons; PHENIX experiment; RHIC; STAR experiment; polarization directions; spin rotators; superconducting helical spin rotators; Collaboration; Current measurement; Detectors; Interference; Magnets; Nuclear measurements; Particle beams; Particle measurements; Polarization; Protons;

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.2003.1288640

Filename

1288640