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https://doi.org/10.18429/JACoW-IPAC2015-TUPWI059
Title Influence of Plasma Loading in a Hybrid Muon Cooling Channel
Authors
  • D. Stratakis
    BNL, Upton, Long Island, New York, USA
  • B.T. Freemire
    IIT, Chicago, Illinois, USA
  • K. Yonehara
    Fermilab, Batavia, Illinois, USA
Abstract In a hybrid 6D cooling channel, cooling is accomplished by reducing the beam momentum through ionization energy loss in wedge absorbers and replenishing the momentum loss in the longitudinal direction with gas-filled rf cavities. While the gas acts as a buffer to prevent rf breakdown, gas ionization may also occur as the beam passes through a HPRF cavity. The resulting plasma, may gain substantial energy from the rf electric field which it can transfer via collisions to the gas, an effect known as plasma loading. In this paper, we investigate the influence of plasma loading on the cooling performance of a rectilinear hybrid channel. With the aid of numerical simulations we examine the sensitivity in cooling performance and plasma loading to key parameters such as the rf gradient and gas pressure.
Funding Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy.
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Conference IPAC2015, Richmond, VA, USA
Series International Particle Accelerator Conference (6th)
Proceedings Link to full IPAC2015 Proccedings
Session Tuesday Posters (Wilson)
Date 05-May-15   16:00–18:00
Main Classification 1: Circular and Linear Colliders
Sub Classification A09 - Muon Accelerators and Neutrino Factories
Keywords plasma, ion, electron, cavity, emittance
Publisher JACoW, Geneva, Switzerland
Editors Stuart Henderson (ANL, Argonne, IL, USA); Evelyn Akers (Jlab, Newport News, VA, USA); Todd Satogata (JLab, Newport News, VA, USA); Volker R.W. Schaa (GSI, Darmstadt, Germany)
ISBN 978-3-95450-168-7
Published June 2015
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