SPIN TRANSPORT FROM AGS TO RHIC WTIH TWO PARTIAL SNAKES IN AGS.

Conference · Fri Jun 23 00:00:00 EDT 2006

OSTI ID:885009

MACKAY, W W; LUCCIO, A U; TSOUPAS, N; TAKANO, J

The stable spin direction in the RHIC rings is vertical. With one or two partial helical Siberian snakes in the AGS, the stable spin direction at extraction is not vertical. Interleaved vertical and horizontal bends in the transport line between AGS and the RHIC rings also tend to tip the spin away from the vertical. In order to maximize polarization in RHIC, we examined several options to improve the matching of the stable spin direction during beam transfer from the AGS to each of the RHIC rings. While the matching is not perfect, the most economical method appears to be a lowering of the injection energy by one unit of G{gamma} from 46.5 to 45.5.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: DOE/SC
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 885009
• Report Number(s): BNL-75462-2006-CP; R&D Project: 18026; KB0202011; TRN: US0603751
• Resource Relation: Conference: 10TH BIENNIAL EUROPEAN PARTICLE ACCELERATOR CONFERENCE (EPAC); EDINBURGH, UK; 20060626 through 20060630
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
POLARIZATION
SPIN
TRANSPORT