Author: Chaikovska, I.
Paper Title Page
WEOBA3 Studies of a Scheme for Low Emittance Muon Beam Production From Positrons on Target 2486
 
  • M. Boscolo, M. Antonelli, M.E. Biagini, O.R. Blanco-García, A. Variola
    INFN/LNF, Frascati (Roma), Italy
  • A. Bacci
    Istituto Nazionale di Fisica Nucleare, Milano, Italy
  • I. Chaikovska, R. Chehab
    LAL, Orsay, France
  • F. Collamati
    INFN-Roma1, Rome, Italy
  • M. Iafrati
    ENEA, Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile, Frascati, Italy
  • L. Keller
    SLAC, Menlo Park, California, USA
  • S.M. Liuzzo, P. Raimondi
    ESRF, Grenoble, France
  • P. Sievers
    CERN, Geneva, Switzerland
 
  We are studying a new scheme to produce very low emittance muon beams using a positron beam of about 45 GeV interacting on electrons on target. This is a challenging and innovative scheme that needs a full design study. One of the innovative topics to be investigated is the behaviour of the positron beam stored in a low emittance ring with a thin target, that is directly inserted in the ring chamber to produce muons. Muons will be immediately collected at the exit of the target and transported to two mu+ and mu- accumulator rings. We focus in this paper on the simulation of the e+ beam interacting with the target, its degradation in the 6-D phase space and the optimization of the e+ ring design mainly to maximize the energy acceptance. We will investigate the performances of this scheme, ring optics plus target system, comparing different multi-turn simulations.  
slides icon Slides WEOBA3 [3.737 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-WEOBA3  
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WEPIK002 Experimental Activities on High Intensity Positron Sources Using Channeling 2910
 
  • I. Chaikovska, R. Chehab, H. Guler, V. Kubytskyi
    LAL, Orsay, France
  • X. Artru
    IN2P3 IPNL, Villeurbanne, France
  • K. Furukawa, T. Kamitani, F. Miyahara, M. Satoh, Y. Seimiya, T. Suwada
    KEK, Ibaraki, Japan
  • V. Rodin
    National Taras Shevchenko University of Kyiv, The Faculty of Physics, Kyiv, Ukraine
  • P. Sievers
    CERN, Geneva, Switzerland
 
  The positron source under investigation is using channeling radiation of multi-GeV electrons in a tungsten crystal. The radiated photons are impinging on the amorphous targets creating e+e pairs. A dipole magnet between the crystal-radiator and the amorphous-converter allows the charged particles to be swept off and only emitted photons to generate e+e pairs in the converter. Granular targets of different thicknesses, made of small tungsten spheres, have been recently investigated as a target-converter. This paper is describing the experimental studies conducted at the KEKB linac with such device. After the description of the experimental set-up and beam parameters, the measurement methods and preliminary results are presented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-WEPIK002  
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