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https://doi.org/10.18429/JACoW-IPAC2015-MOPJE022
Title Physical Model of Partial RF Discharge in Isochronous Cyclotrons
Authors
  • V.S. Dyubkov
    MEPhI, Moscow, Russia
  • S. Korenev
    Siemens Medical Solutions Molecular Imaging, Knoxville, TN, USA
Abstract The physical model for the partial RF discharge - based on the ionization of molecules of residual gas by electron detachment as a result of the electro-dissociation of negative hydrogen ions in isochronous cyclotrons - is proposed in this paper. The result of the simulation of the ionization of gas molecules by these electrons using RF voltage inside the Eclipse cyclotron (kinetic energy of 11 MeV) is presented. The analysis of the conductivity of the RF plasma (partial RF discharge) is given. The influence of the magnetic field on the properties of the partial RF discharge is discussed. The application of this model is for isochronous cyclotrons with low kinetic energy (10⁻¹⁵ MeV).
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Conference IPAC2015, Richmond, VA, USA
Series International Particle Accelerator Conference (6th)
Proceedings Link to full IPAC2015 Proccedings
Session Monday Posters (Jefferson)
Date 04-May-15   16:00–18:00
Main Classification 5: Beam Dynamics and EM Fields
Sub Classification D02 - Nonlinear Dynamics - Resonances, Tracking, Higher Order
Keywords electron, cyclotron, plasma, ion, ion-source
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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