Multiple Partial Siberian Snakes in the AGS

Journal Article · Wed Jun 13 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2750922· OSTI ID:21064062

Takano, J ^[1]; Ahrens, L A; Bai, M; Brown, K; Courant, E D; Gardner, C J; Glenn, J W; Huang, H; Luccio, A U; MacKay, W W; Okamura, M; Roser, T; Tepikian, S; Tsoupas, N; Yip, K; Zelenski, A; Zeno, K ^[2]; Hattori, T ^[3]; Lin, F ^[2]

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1. RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)
2. Brookhaven National Laboratory, Upton, NY 11973 (United States)
3. Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro, Tokyo 152-8550 (Japan)

Polarized protons are accelerated up to 24.3 GeV in the Alternating Gradient Synchrotron (AGS) at Brookhaven National Laboratory (BNL). To accelerate the beam with preserving the polarization, two different types of helical dipole partial Siberian snake have been installed to the AGS. One is a superconducting magnet (Cold Snake, CSNK), and the other is a normal conducting one (Warm Snake, WSNK). With these snake magnets, the polarization at the AGS extraction achieved 65%. However, the AGS has spin mismatches at the injection and extraction. This description shows calculated results to have better spin matching with using two or three snakes.

• OSTI ID: 21064062
• Journal Information: AIP Conference Proceedings, Vol. 915, Issue 1; Conference: 17. international spin physics symposium, Kyoto (Japan), 2-7 Oct 2006; Other Information: DOI: 10.1063/1.2750922; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM EXTRACTION
BEAM FOCUSING MAGNETS
BEAM INJECTION
BEAM PRODUCTION
BROOKHAVEN AGS
DIPOLES
GEV RANGE
MAGNETIC FIELD CONFIGURATIONS
POLARIZATION
POLARIZED BEAMS
PROTON BEAMS
PROTONS
SPIN
SUPERCONDUCTING MAGNETS