Spin flipping a stored vertically polarized proton beam with an RF solenoid

Journal Article · Fri Sep 01 04:00:00 EDT 1995 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.48887· OSTI ID:254069

Phelps, R A; Blinov, B B; Chu, C M; Courant, E D; Crandell, D A; Kaufman, W A; Krisch, A D; Nurushev, T S; Ratner, L G; Wong, V K ^[1]; Caussyn, D D; Derbenev, Y S; Ellison, T J; Lee, S Y; Rinckel, T; Schwandt, P; Sperisen, F; Stephenson, E J; Przewoski, B v ^[2]; Ohmori, C ^[3]

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1. Randall Laboratory of Physics, University of Michigan, Ann Arbor, Michigan 48109-1120 (United States)
2. Indiana University Cyclotron Facility, Bloomington, Indiana 47408-0768 (United States)
3. Institute for Nuclear Study, University of Tokyo, Tanashi, Tokyo 188 (Japan)

A recent experiment in the IUCF cooler ring studied the spin flip of a stored vertically polarized 139 MeV proton beam. This spin flip was accomplished by using an RF solenoid to induce an artificial depolarizing resonance in the ring, and then varying the solenoid{close_quote}s frequency through this resonance value to induce spin flip. We found a polarization loss after multiple spin flips of about 0.00{plus_minus}0.05{percent} per flip and also losses for very long flip times. This device will be useful for reducing systematic errors in polarized beam-internal target scattering asymmetry experiments by enabling experimenters to perform frequent beam polarization reversals in the course of the experiment. {copyright} {ital 1995 American Institute of Physics.}

• Sponsoring Organization: USDOE
• OSTI ID: 254069
• Report Number(s): CONF-9409103--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 343; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
66 PHYSICS
BEAM OPTICS
BETATRON OSCILLATIONS
IU CYCLOTRON
MEV RANGE 100-1000
POLARIZATION-ASYMMETRY RATIO
POLARIZED BEAMS
PROTON BEAMS
SPIN
TUNING