Author: Petrenko, A.V.
Paper Title Page
TUPMR019 Measurements of the Beam Phase Response to Correcting Magnetic Fields in PSI Cyclotrons 1271
  • A.S. Parfenova, C. Baumgarten, J.M. Humbel, A.C. Mezger
    PSI, Villigen PSI, Switzerland
  • A.V. Petrenko
    CERN, Geneva, Switzerland
  The cyclotron-based proton accelerator facility (HIPA) at PSI is presently operated at 1.3-1.4 MW beam power at a kinetic energy of 590 MeV/u to drive the neutron spallation source SINQ and for production of pion and muon beams. Over the years HIPA facility has developed towards increase of the delivered beam current and beam power (0.1 mA in 1974 till 2.2 mA in 2010). During the last few years several upgrades of the Ring cyclotron field correction and beam phase monitoring systems were made. RF voltage was also increased. In order to test the performance of the upgraded system the phase response measurements were carried out.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMR019  
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WEPMY021 Beam-Plasma Interaction Simulations for the AWAKE Experiment at CERN 2596
  • A.V. Petrenko, E. Gschwendtner, G. Plyushchev, M. Turner
    CERN, Geneva, Switzerland
  • K.V. Lotov
    BINP SB RAS, Novosibirsk, Russia
  • K.V. Lotov, A. Sosedkin
    NSU, Novosibirsk, Russia
  • G. Plyushchev
    EPFL, Lausanne, Switzerland
  • M. Turner
    TUG/ITP, Graz, Austria
  The AWAKE experiment at CERN will be the first proof-of-principle demonstration of the proton-driven plasma wakefield acceleration using the 400 GeV proton beam extracted from the SPS accelerator. The plasma wakefield will be driven by a sequence of sub-millimeter long micro-bunches produced as a result of the self-modulation instability (SMI) of the 12 cm long SPS proton bunch in the 10 m long rubidium plasma with a density corresponding to the plasma wavelength of around 1 mm. A 16 MeV electron beam will be injected into the developing SMI and used to probe the plasma wakefields. The proton beam self-modulation in a wide range of plasma densities and gradients have been studied in detail via numerical simulations. A new configuration of the AWAKE experiment with a small plasma density step is proposed.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPMY021  
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WEPMY024 A Spectrometer for Proton Driven Plasma Accelerated Electrons at AWAKE - Recent Developments 2605
  • L.C. Deacon, S. Jolly, F. Keeble, M. Wing
    UCL, London, United Kingdom
  • B. Biskup, A. Goldblatt, S. Mazzoni, A.V. Petrenko
    CERN, Geneva, Switzerland
  • B. Biskup
    Czech Technical University, Prague 6, Czech Republic
  • M. Wing
    DESY, Hamburg, Germany
  • M. Wing
    University of Hamburg, Hamburg, Germany
  The AWAKE experiment is to be constructed at the CERN Neutrinos to Gran Sasso facility (CNGS). This will be the first experiment to demonstrate proton-driven plasma wakefield acceleration. The 400 GeV proton beam from the CERN SPS will excite a wakefield in a plasma cell several meters in length. To probe the plasma wakefield, electrons of 10–20 MeV will be injected into the wakefield following the head of the proton beam. Simulations indicate that electrons will be accelerated to GeV energies by the plasma wakefield. The AWAKE spectrometer is intended to measure both the peak energy and energy spread of these accelerated electrons. Results of beam tests of the scintillator screen output are presented, along with tests of the resolution of the proposed optical system. The results are used together with a BDSIM simulation of the spectrometer system to predict the spectrometer performance for a range of possible accelerated electron distributions.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPMY024  
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