Journal Article

PreJuSER-41317

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Spin manipulation of 1.94 GeV/c polarized protons stored in the COSY cooler synchrotron

Morozov, V. S. ; Krisch, A. D. ; Leonova, M. A. ; Raymond, R. S. ; Wong, V. K. ; Yonehara, K. ; Bechstedt, U.FZJ* ; Gebel, R.FZJ* ; Lehrach, A.FZJ* ; Lorentz, B.FZJ* ; Maier, R.FZJ* ; Prasuhn, D.FZJ* ; Schnase, A.FZJ* ; Stockhorst, H.FZJ* ; Eversheim, D. P. ; Hinterberger, F. ; Rohdjeß, H. ; Ulbrich, K.

2004
Soc. [S.l.] @

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Please use a persistent id in citations: http://hdl.handle.net/2128/11160  doi:10.1103/PhysRevSTAB.7.024002

Abstract: We recently studied spin flipping of a 1.94 GeV/c vertically polarized proton beam at COSY in Julich, Germany. We swept an rf-dipole's frequency through an rf-induced spin resonance to flip the beam's polarization direction. After determining the resonance's frequency, we varied the dipole's strength, frequency range, and frequency ramp time. At the rf-dipole's maximum strength, and optimum frequency range and ramp time, we measured a spin-flip efficiency of 99.3% +/- 0.1%. This result indicates that an rf dipole may allow efficient spin flipping in high energy proton rings.

Keyword(s): p: storage ring ; p: polarized beam ; spin: rotator ; RF system: rotator ; RF system: bending magnet ; polarization: resonance ; beam cooling: electron cooling ; beam cooling: stochastic cooling ; Juelich COSY PS ; bibliography

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Kernphysikalische Großgeräte (IKP-GG)

Research Program(s):

1. Betrieb und Weiterentwicklung des Kühler-Synchrotrons COSY (M04)

Appears in the scientific report 2004

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