Spin Flipping in the Presence of a Full Siberian Snake

Journal Article · Thu Oct 01 04:00:00 EDT 1998 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.81.2906· OSTI ID:662275

Blinov, B B; Anferov, V A; Derbenev, Y S; Kageya, T; Krisch, A D; Lorenzon, W; Ratner, L G; Sivers, D W; Sourkont, K V; Wong, V K ^[1]; Chu, C M; Lee, S Y; Rinckel, T; Schwandt, P; Sperisen, F; von Przewoski, B ^[2]; Sato, H ^[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. KEK, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801 (Japan)

We have demonstrated for the first time spin flipping of a polarized proton beam stored in a ring containing a nearly 100{percent} Siberian snake; we did this using a {open_quotes}snake{close_quotes} depolarizing resonance induced by an rf solenoid magnet. By varying the rf solenoid{close_quote}s ramp time, frequency range, and voltage, we reached a spin-flip efficiency of about 91{percent} . This spin-flip efficiency was probably reduced because the horizontal stable spin direction was not perpendicular to the longitudinal field of the rf solenoid, and was possibly reduced by nearby synchrotron sideband resonances. The planned use of a vertical rf dipole may improve the spin-flip efficiency. {copyright} {ital 1998} {ital The American Physical Society }

• OSTI ID: 662275
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 81; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
POLARIZED BEAMS
PROTON BEAMS
RESONANCE
SOLENOIDS
SPIN FLIP
STORAGE RINGS