Polarization lifetime near an intrinsic depolarizing resonance

Journal Article · Mon Sep 01 04:00:00 EDT 1997 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.56.3578· OSTI ID:542221

Meyer, H O; Pollock, R E ^[1]; Lorentz, B; Haeberli, W; Rathmann, F; Wise, T ^[2]; Dzemidzic, M; Doskow, J; Przewoski, B v; Rinckel, T; Sperisen, F ^[3]; Pancella, P V ^[4]

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1. Department of Physics, Indiana University, Bloomington, Indiana 47405 (United States)
2. University of Wisconsin--Madison, Madison, Wisconsin 53706 (United States)
3. Indiana University Cyclotron Facility, Bloomington, Indiana 47405 (United States)
4. Western Michigan University, Kalamazoo, Michigan 49008 (United States)

We have measured the time dependence of the polarization of a stored proton beam near an intrinsic depolarizing resonance. The distance to the resonance was varied by changing the vertical tune of the storage ring. The measurements are consistent with exponential decay and with a simple model for the change of the lifetime as the resonance is approached. It was originally expected that the presence of an internal target stimulates depolarization; however, we found no evidence for such an effect. {copyright} {ital 1997} {ital The American Physical Society}

• DOE Contract Number: FG02-88ER40438
• OSTI ID: 542221
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics Journal Issue: 3 Vol. 56; ISSN PLEEE8; ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
66 PHYSICS
DEPOLARIZATION
LIFETIME
POLARIZATION
PROTON BEAMS
RESONANCE
STORAGE RINGS
TIME DEPENDENCE