ACCELERATION OF POLARIZED BEAMS USING MULTIPLE STRONG PARTIAL SIBERIAN SNAKES.

Conference · Mon Jul 05 00:00:00 EDT 2004

OSTI ID:15007985

ROSER,T.AHRENS,L.BAI,M.ET AL.

Acceleration of polarized protons in the energy range of 5 to 25 GeV is particularly difficult since depolarizing spin resonances are strong enough to cause significant depolarization but full Siberian snakes cause intolerably large orbit excursions. Using a 20-30% partial Siberian snake both imperfection and intrinsic resonances can be overcome. Such a strong partial Siberian snake was designed for the Brookhaven AGS using a dual pitch helical superconducting dipole. Multiple strong partial snakes are also discussed for spin matching at beam injection and extraction.

• Research Organization: BROOKHAVEN NATIONAL LABORATORY (US)
• Sponsoring Organization: DOE/OFFICE OF SCIENCE (US)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 15007985
• Report Number(s): BNL-72042-2004-CP; R&D Project: AD-002-ADOP; KB020204; TRN: US0402934
• Resource Relation: Conference: 2004 EUROPEAN PARTICLE ACCELERATOR CONFERENCE (EPAC-04), LUCERNE (CH), 07/05/2004--07/09/2004; Other Information: PBD: 5 Jul 2004
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATION
ACCELERATORS
BEAM INJECTION
BROOKHAVEN AGS
DEFECTS
DEPOLARIZATION
ENERGY RANGE
POLARIZED BEAMS
PROTONS
SPIN