Title :
Acceleration of polarized protons to high energy
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
High energy polarized beam collisions will open up the unique physics opportunities of studying spin effects in hard processes. However, the acceleration of polarized beams in circular accelerators is complicated by the numerous depolarizing spin resonances. Using a partial Siberian Snake and an RF dipole that ensure stable adiabatic spin motion during acceleration has made it possible to accelerate polarized protons to 25 GeV at the Brookhaven AGS. Full Siberian Snakes and polarimeters are being developed for RHIC to make the acceleration of polarized protons to 250 GeV possible. A similar scheme is being studied for the 803 GeV HERA proton accelerator
Keywords :
accelerator RF systems; beam handling equipment; colliding beam accelerators; polarimeters; proton accelerators; proton polarisation; storage rings; synchrotrons; 25 GeV; 250 GeV; 800 GeV; Brookhaven AGS; HERA; RF dipole; RHIC; circular accelerators; depolarizing spin resonances; hard processes; high energy; partial Siberian Snake; polarimeters; polarized protons acceleration; spin effects; stable adiabatic spin motion; Acceleration; Equations; Frequency; Magnetic fields; Magnetic resonance; Particle accelerators; Particle beams; Physics; Polarization; Proton accelerators;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.795615
