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@ARTICLE{Benati:132053,
      author       = {Benati, P. and Chiladze, D. and Dietrich, J. and Gaisser,
                      M. and Gebel, R. and Guidoboni, G. and Hejny, V. and
                      Kacharava, A. and Kamerdzhiev, Vsevolod and Kulessa, P. and
                      Lehrach, A. and Lenisa, P. and Lorentz, B. and Maier, R. and
                      Mchedlishvili, D. and Morse, W. M. and Öllers, D. and
                      Pesce, A. and Polyanskiy, A. and Prasuhn, D. and Rathmann,
                      F. and Semertzidis, Y. K. and Stephenson, E. J. and
                      Stockhorst, H. and Ströher, H. and Talman, R. and Valdau,
                      Yu. and Weidemann, Ch. and Wüstner, P.},
      title        = {{S}ynchrotron oscillation effects on an rf-solenoid spin
                      resonance},
      journal      = {Physical review accelerators and beams},
      volume       = {15},
      number       = {12},
      issn         = {1098-4402},
      address      = {[S.l.] @},
      publisher    = {Soc.},
      reportid     = {FZJ-2013-01293},
      pages        = {124202},
      year         = {2012},
      abstract     = {New measurements are reported for the time dependence of
                      the vertical polarization of a 0.97 GeV/c deuteron beam
                      circulating in a storage ring and perturbed by an rf
                      solenoid. The storage ring is the cooler synchrotron (COSY)
                      located at the Forschungszentrum Juelich. The beam
                      polarization was measured continuously using a 1.5 cm thick
                      carbon target located at the edge of the circulating
                      deuteron beam and the scintillators of the EDDA detector. An
                      rf solenoid mounted on the ring was used to generate fields
                      at and near the frequency of the 1 - G spin resonance.
                      Measurements were made of the vertical beam polarization as
                      a function of time with the operation of the rf solenoid in
                      either fixed or continuously variable frequency mode. Using
                      rf-solenoid strengths as large as $2.66*10^5$
                      revolutions/turn, slow oscillations ( 1 Hz) were observed in
                      the vertical beam polarization. When the circulating beam
                      was continuously electron cooled, these oscillations
                      completely reversed the polarization and showed no sign of
                      diminishing in amplitude. But for the uncooled beam, the
                      oscillation amplitude was damped to nearly zero within a few
                      seconds. A simple spin-tracking model without the details of
                      the COSY ring lattice was successful in reproducing these
                      oscillations and demonstrating the sensitivity of the
                      damping to the magnitude of the synchrotron motion of the
                      beam particles. The model demonstrates that the
                      characteristic features of measurements made in the presence
                      of large synchrotron oscillations are distinct from the
                      features of such measurements when made off resonance. These
                      data were collected in preparation for a study of the spin
                      coherence time, a beam property that needs to become long to
                      enable a search for an electric dipole moment using a
                      storage ring.},
      keywords     = {deuteron: beam (INSPIRE) / beam: polarization (INSPIRE) /
                      spin: resonance (INSPIRE) / carbon: target (INSPIRE) /
                      solenoid (INSPIRE) / synchrotron oscillation: effect
                      (INSPIRE) / scintillation counter (INSPIRE) / Juelich COSY
                      PS (INSPIRE) / beam dynamics (INSPIRE) / EDDA (INSPIRE) /
                      electric moment: measurement methods (INSPIRE) / beam
                      profile (INSPIRE) / polarization: time dependence (INSPIRE)},
      cin          = {ZEA-2 / IKP-2 / IKP-4 / IKP-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ZEA-2-20090406 / I:(DE-Juel1)IKP-2-20111104 /
                      I:(DE-Juel1)IKP-4-20111104 / I:(DE-Juel1)IKP-1-20111104},
      pnm          = {53G - COSY (POF2-53G32)},
      pid          = {G:(DE-HGF)POF2-53G32},
      experiment   = {EXP:(DE-Juel1)JEDI-20170712},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000312497900001},
      doi          = {10.1103/PhysRevSTAB.15.124202},
      url          = {https://juser.fz-juelich.de/record/132053},
}