First test of a partial Siberian snake for acceleration of polarized protons

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

DOI:https://doi.org/10.1063/1.48938· OSTI ID:254177

Caussyn, D D ^[1]; Baiod, R ^[2]; Blinov, B B; Chu, C M; Courant, E D; Crandell, D A ^[1]; Derbenev, Y S; Ellison, T J ^[3]; Kaufman, W A; Krisch, A D ^[1]; Lee, S Y ^[3]; Minty, M G ^[4]; Nurushev, T S ^[1]; Ohmori, C ^[5]; Phelps, R A; Raczkowski, D B; Ratner, L G ^[1]; Schwandt, P; Stephenson, E J; Sperisen, F ; Przewoski, B v ^[3]; Wienands, U ^[6]; Wong, V K ^[1]

---

1. Randall Laboratory of Physics, University of Michigan, Ann Arbor, Michigan 48109-1120 (United States)
2. Fermilab, Batavia, Illinois 60510 (United States)
3. Indiana University Cyclotron Facility, Bloomington, Indiana 47408-0768 (United States)
4. Stanford Linear Accelerator Center, Stanford, California 94309 (United States)
5. Institute for Nuclear Study, University of Tokyo, Tanashi, Tokyo 188 (Japan)
6. SSC Lab, Dallas, Texas (United States)

We recently studied the first acceleration of a spin-polarized proton beam through a depolarizing resonance using a partial Siberian snake. We accelerated polarized protons from 95 to 140 MeV with a constant 10{percent} partial Siberian snake obtained using rampable solenoids. The 10{percent} partial snake suppressed all observable depolarization during acceleration due to the {ital G}{gamma}=2 imperfection depolarizing resonance which occurred near 108 MeV. However, 20{percent} and 30{percent} partial Siberian snakes apparently moved an intrinsic depolarizing resonance, normally near 177 MeV, into our energy range; this caused some interesting, although not-yet-fully understood, depolarization. {copyright} {ital 1995 American Institute of Physics.}

• Sponsoring Organization: USDOE
• OSTI ID: 254177
• Report Number(s): CONF-9409103--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 343; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
66 PHYSICS
BEAM OPTICS
EFFICIENCY
MEV RANGE 100-1000
POLARIZED BEAMS
PROTON BEAMS
RESONANCE