ACCELERATION OF POLARIZED PROTONS IN THE AGS WITH TWO HELICAL PARTIAL SNAKES.

Conference · Mon May 16 00:00:00 EDT 2005

OSTI ID:15020018

HUANG, H; AHRENS, L; BAI, M

The RHIC spin program requires 2 x 10{sup 11} proton/bunch with 70% polarization. As the injector to RHIC, AGS is the bottleneck for preserving polarization: there is no space for a full snake to overcome numerous depolarizing resonances. An ac dipole and a partial snake have been used to preserve beam polarization in the past few years. Two helical snakes have been built and installed in the AGS. With careful setup of optics at injection and along the ramp, this combination can eliminate all depolarizing resonances encountered during acceleration. This paper presents the setup and preliminary results.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: DOE/SC
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 15020018
• Report Number(s): BNL-73458-2005-CP; R&D Project: AD-003; KB-0202011; TRN: US0504291
• Resource Relation: Conference: PAC 2005 PARTICLE ACCELERATOR CONFERENCE; KNOXVILLE, TN; 20050516 through 20050520
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATION
ACCELERATORS
DIPOLES
OPTICS
POLARIZATION
PROTONS
SPIN