Preservation of proton polarization by a partial siberian snake

Huang, H.; Ahrens, L.; Alessi, J.G.; Beddo, M.; Brown, K.A.; Bunce, G.; Caussyn, D.D.; Grosnick, D.; Kponou, A.E.; Lee, S.Y.

doi:10.1103/PhysRevLett.73.2982

Preservation of proton polarization by a partial siberian snake

H. Huang
(
- Indiana U. and
- Argonne
)
,
L. Ahrens
(
- Brookhaven
)
,
J.G. Alessi
(
- Brookhaven
)
,
M. Beddo
(
- Argonne
)
,
K.A. Brown
(
- Brookhaven
)

Jul, 1994

11 pages

Published in:

Phys.Rev.Lett. 73 (1994) 2982-2985

DOI:

10.1103/PhysRevLett.73.2982

Report number:

ANL-HEP-PR-94-64

Experiments:

BNL-E-0880

View in:

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Abstract: (APS)

A 9° solenoidal spin rotator or 5% partial Siberian Snake was used to successfully accelerate polarized protons for the first time to 10.8 GeV kinetic energy in the Brookhaven Alternating Gradient Synchrotron with partial depolarization due to the intrinsic resonance crossing. It was found that a 5% partial snake can effectively overcome 18 imperfection resonances in this energy range. We also observed an interference between the spin flip induced by an intrinsic resonance and linear coupling due to the solenoid field of the partial snake.

proton synchrotron
p: polarized beam
polarized beam: p
acceleration: polarized beam
polarized beam: acceleration
spin: rotator
rotator: spin
magnetic: solenoid
spin: resonance
resonance: spin

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