Author: Tygier, S.C.
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WEPMW037 MERLIN Simulations of the LHC Collimation System with 6.5 TeV Beams 2518
 
  • A. Valloni
    Rome University La Sapienza, Roma, Italy
  • R.B. Appleby, S.C. Tygier
    UMAN, Manchester, United Kingdom
  • R. Bruce, A. Mereghetti, S. Redaelli
    CERN, Geneva, Switzerland
  • J. Molson
    LAL, Orsay, France
  • H. Rafique
    University of Huddersfield, Huddersfield, United Kingdom
 
  The accelerator physics code MERLIN has been extended in many areas to make detailed studies of the LHC collima- tion system and calculate loss maps from beam halo losses. Large scale tracking simulations have been produced for the 2015 run configuration at 6.5 TeV. We present results of cleaning inefficiency simulations of the LHC's multi-stage collimation system along with a detailed comparison be- tween MERLIN, SixTrack, and measured beam losses.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPMW037  
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THPMB053 nuSTORM FFAG Decay Ring 3369
 
  • J.-B. Lagrange, J. Pasternak
    Imperial College of Science and Technology, Department of Physics, London, United Kingdom
  • R.B. Appleby, J.M. Garland, H.L. Owen, S.C. Tygier
    UMAN, Manchester, United Kingdom
  • R.B. Appleby
    Cockcroft Institute, Warrington, Cheshire, United Kingdom
  • A.D. Bross, A. Liu
    Fermilab, Batavia, Illinois, USA
  • J. Pasternak
    STFC/RAL, Chilton, Didcot, Oxon, United Kingdom
 
  The neutrino beam produced from muons decaying in a storage ring would be an ideal tool for precise neutrino cross section measurements and search for sterile neutrinos due to its precisely known flavour content and spectrum. In the proposed nuSTORM facility pions would be directly injected into a racetrack storage ring, where circulating muon beam would be captured. The storage ring has two options: a FODO solution with large aperture quadrupoles and a racetrack FFAG (Fixed Field Alternating Gradient) using the recent developments in FFAGs. Machine parameters, linear optics design and beam dynamics are discussed in this paper.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMB053  
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THPMB054 FFAG Beam Line for nuPIL - Neutrinos from PIon Beam Line 3372
 
  • J.-B. Lagrange, J. Pasternak
    Imperial College of Science and Technology, Department of Physics, London, United Kingdom
  • R.B. Appleby, S.C. Tygier
    UMAN, Manchester, United Kingdom
  • R.B. Appleby
    Cockcroft Institute, Warrington, Cheshire, United Kingdom
  • A.D. Bross, A. Liu
    Fermilab, Batavia, Illinois, USA
  • J. Pasternak
    STFC/RAL, Chilton, Didcot, Oxon, United Kingdom
 
  The Long Baseline Neutrino Facilities (LBNF) program aims to deliver a neutrino beam for the Deep Underground Neutrino Experiment (DUNE). The current baseline for LBNF is a conventional magnetic horn and decay pipe system. Neutrinos from PIon beam Line (nuPIL) is a part of the optimization effort to optimize the LBNF. It consists of a pion beam line after the horn to clean the beam of high energy protons and wrong-sign pions before transporting them into a decay beam line, where instrumentation could be implemented. This paper focuses on the FFAG solution for this pion beam line. The resulting neutrino flux is also presented.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMB054  
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