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Berg, J.S.

Paper Title Page
WEPE057 Injection/Extraction System of the Muon FFAG for the Neutrino Factory 3476
 
  • J. Pasternak, M. Aslaninejad
    Imperial College of Science and Technology, Department of Physics, London
  • J.S. Berg
    BNL, Upton, Long Island, New York
  • D.J. Kelliher, S. Machida
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  • J. Pasternak
    STFC/RAL, Chilton, Didcot, Oxon
  • H. Witte
    JAI, Oxford
 
 

Nonscaling FFAG is required for the muon acceleration in the Neutrino Factory, which baseline design is under investigation in the International Design Study (IDS-NF). In order to inject/extract the muon beam with a very large emittance, several strong kickers with a very large aperture are required distributed in many lattice cells. Once the sufficient orbit separation is obtained by the kickers, the final degree of separation from the lattice is made by the septum, which needs to be superconducting. The geometry of the symmetric solutions allowing to inject/extract both signs of muons is presented. The preliminary design of the kicker and septum magnets is given.

 
WEPE060 Investigation of Beam Loading Effects for the Neutrino Factory Muon Accelerator 3479
 
  • J.K. Pozimski, M. Aslaninejad, C. Bontoiu
    Imperial College of Science and Technology, Department of Physics, London
  • J.S. Berg
    BNL, Upton, Long Island, New York
  • S.A. Bogacz
    JLAB, Newport News, Virginia
  • S. Machida
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
 
 

The IDS study showed that a Neutrino Factory seems to be the most promising candidate for the next phase of high precision neutrino oscillation experiments. A part of the increased precision is due to the fact that in a Neutrino Factory the decay of muons produces a neutrino beam with narrow energy distribution and divergence. The effect of beam loading on the energy distribution of the muon beam in the Neutrino Factory has been investigated numerically. The simulations have been performed using the baseline accelerator design including cavities for different number of bunch trains and bunch train timing. A detailed analysis of the beam energy distribution expected is given together with a discussion of the energy spread produced by the gutter acceleration in the FFAG and the implications for the neutrino oscillation experiments will be presented.

 
THXMH02 International Design Study of a Neutrino Factory 3597
 
  • J.S. Berg
    BNL, Upton, Long Island, New York
 
 

By providing an extremely intense source of neutrinos from the decays of muons in a storage ring, a Neutrino Factory will provide the opportunity for precision measurements and searches for new physics amongst neutrino interactions. An active international collaboration is addressing the many technical challenges that must be met before the design for a Neutrino Factory can be finalized. An overview of the accelerator complex and the current international R&D program will be presented, and the key technical issues will be discussed.

 

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Slides

 
THPEA017 A Magnetic Alloy loaded RF Cavity System for EMMA 3714
 
  • C. Ohmori
    KEK, Ibaraki
  • J.S. Berg
    BNL, Upton, Long Island, New York
 
 

An RF system using Magnetic Alloy is considered as an option to study the beam dynamics of a linear non-scaling FFAG. Such an FFAG may have many resonances, which affect the beam more when the beam crosses them slowly. The RF system aims at ordinary RF bucket acceleration with an RF frequency sweep of 3 % in 100 turns. The cavity has only 10 cm length to fit in a short straight section. The required RF voltage is 100 kV per turn and each of the three cavities is designed to generate 50 kV.

 
THPEC090 The EMMA Non-scaling FFAG 4266
 
  • T.R. Edgecock
    STFC/RAL, Chilton, Didcot, Oxon
  • C.D. Beard, J.A. Clarke, S.A. Griffiths, C. Hill, S.P. Jamison, J.K. Jones, A. Kalinin, K.B. Marinov, N. Marks, P.A. McIntosh, B.D. Muratori, J.F. Orrett, Y.M. Saveliev, B.J.A. Shepherd, R.J. Smith, S.L. Smith, S.I. Tzenov, A.E. Wheelhouse
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
  • J.S. Berg
    BNL, Upton, Long Island, New York
  • N. Bliss, B.G. Martlew, C.J. White
    STFC/DL, Daresbury, Warrington, Cheshire
  • M.K. Craddock
    UBC & TRIUMF, Vancouver, British Columbia
  • J.L. Crisp, C. Johnstone
    Fermilab, Batavia
  • Y. Giboudot
    Brunel University, Middlesex
  • E. Keil
    CERN, Geneva
  • D.J. Kelliher, S. Machida
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  • S.R. Koscielniak
    TRIUMF, Vancouver
  • F. Méot
    CEA, Gif-sur-Yvette
  • J. Pasternak
    Imperial College of Science and Technology, Department of Physics, London
  • S.L. Sheehy, T. Yokoi
    JAI, Oxford
 
 

The Electron Model for Many Applications (EMMA) will be the World's first non-scaling FFAG and is under construction at the STFC Daresbury Laboratory in the UK. Construction is due for completion in March 2010 and will be followed by commissioning with beam and a detailed experimental programme to study the functioning of this type of accelerator. This paper will give an overview of the motivation for the project and describe the EMMA design and hardware. The first results from commissioning will be presented in a separate paper.

 
THPEC092 A Pion Production and Capture System for a 4MW Target Station 4272
 
  • X.P. Ding, D.B. Cline
    UCLA, Los Angeles, California
  • J.S. Berg, H.G. Kirk
    BNL, Upton, Long Island, New York
 
 

A study of a pion production and capture system for a 4MW target station for a neutrino factory or muon collider is presented. Using the MARS code, we simulate the pion production produced by the interaction of a free liquid mercury jet with an intense proton beam. We study the variation of meson production with the direction of the proton beam relative to the target. We also examine the influence on the meson production by the focusing of the proton beam. The energy deposition in the capture system is determined and the shielding required in order to avoid radiation damage is discussed.

 
THPD024 Recent Developments On The EMMA On-line Commissioning Software 4325
 
  • F. Méot
    CEA, Gif-sur-Yvette
  • J.S. Berg
    BNL, Upton, Long Island, New York
  • Y. Giboudot
    Brunel University, Middlesex
  • D.J. Kelliher, S. Machida
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  • B.J.A. Shepherd
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
  • S.C. Tygier
    UMAN, Manchester
 
 

The EMMA (Electron Model for Many Applications) FFAG experiment at Daresbury will involve on-line modeling (a ‘‘Virtual EMMA'') based on stepwise ray-tracing methods. Various aspects of the code of concern and of its interfacing to real world - machine and users - are addressed.