Overcoming intrinsic and synchrotron depolarizing resonances with a Siberian snake

Journal Article · Mon Jun 04 00:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.2779· OSTI ID:7149286

Goodwin, J E; Meyer, H; Minty, M G; Pancella, P V; Pollock, R E; Rinckel, T; Ross, M A; Sperisen, F; Stephenson, E J; von Przewoski, B ^[1]; Courant, E D; Lee, S Y; Ratner, L G ^[2]; Krisch, A D; Raymond, R S; Roser, T; Stewart, J A; Vuaridel, B ^[3]

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1. Indiana University Cyclotron Facility, Bloomington, Indiana 47408 (USA)
2. Brookhaven National Laboratory, Upton, New York 11973 (USA)
3. Randall Laboratory of Physics, The University of Michigan, Ann Arbor, Michigan 48109 (USA)

We overcame the strong {ital G}{gamma}={minus}3+{nu}{sub {ital y}} intrinsic depolarizing resonance using a Siberian snake acting on a stored beam of 177-MeV polarized protons at the Indiana University Cooler Ring. We also saw the first evidence for a synchrotron depolarizing resonance in a proton ring. Two synchrotron resonances were studied by varying the rf accelerating voltage and the imperfection field at 104 MeV. The Siberian snake also overcame these synchrotron depolarizing resonances.

• OSTI ID: 7149286
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:23; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATION
ACCELERATORS
BARYONS
BEAM DYNAMICS
BEAMS
CYCLIC ACCELERATORS
DATA
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
HADRONS
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ION RINGS
MEV RANGE
MEV RANGE 100-1000
NUCLEONS
NUMERICAL DATA
ORIENTATION
POLARIZED BEAMS
PROTONS
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SYNCHROTRONS