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Blair, G.A.

 
Paper Title Page
MOPLS080 A Laser-wire System at the ATF Extraction Line 738
 
  • S.T. Boogert, G.A. Blair, G.E. Boorman, A. Bosco, L. Deacon, C. Driouichi
    Royal Holloway, University of London, Surrey
  • A. Aryshev, H. Hayano, V. Karataev, K. Kubo, N. Terunuma, J. Urakawa
    KEK, Ibaraki
  • A. Brachmann, J.C. Frisch, M.C. Ross
    SLAC, Menlo Park, California
  • N. Delerue
    JAI, Oxford
  • S. Dixit, F.B. Foster, G.F. Gannaway, D.F. Howell, Q.M. Qureshi, A. Reichold, R. Senanayake
    OXFORDphysics, Oxford, Oxon
  • L.J. Jenner
    Cockcroft Institute, Warrington, Cheshire
  • T. Kamps
    BESSY GmbH, Berlin
 
  A new laser-wire system has been installed at the ATF extraction line at KEK, Tsukuba. The system aims at a micron-scale laser spot size and employs a mode-locked laser system. The purpose-built interaction chamber, light delivery optics, and lens systems are described, and the first results are presented.  
MOPLS081 A Study of Laser System Requirements for Application in Beam Diagnostics and Polarimetry at the ILC 741
 
  • S. Dixit, N. Delerue, K.J. Peach
    JAI, Oxford
  • G.A. Blair, S.T. Boogert, G.E. Boorman, A. Bosco, C. Driouichi
    Royal Holloway, University of London, Surrey
  • A. Brachmann, J.C. Frisch, M.C. Ross
    SLAC, Menlo Park, California
  • F.B. Foster, D.F. Howell, Q.G. Quelch, Q.M. Qureshi, A. Reichold
    OXFORDphysics, Oxford, Oxon
  • G.J. Hirst, I. N. Ross
    CCLRC/RAL, Chilton, Didcot, Oxon
  • V. Soskov, V. Variola, Z.F. Zomer
    LAL, Orsay
  • J. Urakawa
    KEK, Ibaraki
 
  Advanced laser systems will be essential for a range of diagnostics devices at the ILC. High average power, excellent stability and reliability will be crucial in order to deliver the information required to attain the necessary ILC luminosity. The key parameters are listed together with the R&D required to achieve the necessary laser system performance.  
MOPLS082 Simulation of the ILC Collimation System Using BDSIM, MARS15 and STRUCT 744
 
  • J. Carter, I.V. Agapov, G.A. Blair, L. Deacon
    Royal Holloway, University of London, Surrey
  • A.I. Drozhdin, N.V. Mokhov
    Fermilab, Batavia, Illinois
  • Y. Nosochkov, A. Seryi
    SLAC, Menlo Park, California
 
  The simulation codes STRUCT, MARS15 and BDSIM are used to simulate in detail the collimation section of the ILC. A comparative study of the collimation system performance is performed, and the key radiation loads are calculated. Results for the latest ILC designs are presented together with their implications for future design iterations.  
TUPCH048 A Study of Emittance Measurement at the ILC 1115
 
  • G.A. Blair, I.V. Agapov, J. Carter, L. Deacon
    Royal Holloway, University of London, Surrey
  • D.A.-K. Angal-Kalinin
    CCLRC/DL/ASTeC, Daresbury, Warrington, Cheshire
  • L.J. Jenner
    Cockcroft Institute, Warrington, Cheshire
  • M.C. Ross, A. Seryi, M. Woodley
    SLAC, Menlo Park, California
 
  The measurement of the ILC emittance in the ILC beam delivery system and the linac is simulated. Estimates of statistical and machine-related errors are discussed and implications for related diagnostics R&D are inferred.  
TUPCH049 Proposal for a Fast Scanning System Based on Electro-optics for Use at the ILC Laser-wire 1118
 
  • A. Bosco, G.A. Blair, S.T. Boogert, G.E. Boorman, L. Deacon, C. Driouichi, M.T. Price
    Royal Holloway, University of London, Surrey
 
  Electro-optic devices open the possibility of ultra-fast scanning systems for use in intra-train scanning at the ILC, where scanning rates in excess of 100 kHz may be required. A first study of the possibilities is presented together with the first results from a prototype system.  
TUPCH050 Beam Profile Measurements with the 2-D Laser-wire 1121
 
  • G.A. Blair, I.V. Agapov, S.T. Boogert, G.E. Boorman, A. Bosco, J. Carter, C. Driouichi, M.T. Price
    Royal Holloway, University of London, Surrey
  • K. Balewski, H.-C. Lewin, F. Poirier, S. Schreiber, K. Wittenburg
    DESY, Hamburg
  • N. Delerue, D.F. Howell
    OXFORDphysics, Oxford, Oxon
  • T. Kamps
    BESSY GmbH, Berlin
 
  A new laser-wire system has been installed at the PETRA ring at DESY, Hamburg. The system is set up to scan in two dimensions using piezo-driven mirrors and employs a newly acquired injection seeded Q-switched laser. The system is described and first results are presented.  
WEYPA01 Beam Delivery System in ILC 1852
 
  • G.A. Blair
    Royal Holloway, University of London, Surrey
 
  The presentation will review the challenges of this key ILC sub-system in terms of beam performances, machine protection system, collimation, interaction with the detector and compare them with the achievements in SLC and FFTB. It will then present the world-wide organization to define and make the necessary R&D for the design, beam simulations and benchmarking in tests facilities, especially the ATF2 facility under construction at KEK. It will explore the major issues both from the beam dynamics and the technological point of view, as well as the plans foreseen and the schedule to address them. It will finally analyze the possible upgrade in energy together with the possible limitations and associated issues.  
slides icon Transparencies
WEPCH124 BDSIM - Beamline Simulation Toolkit Based on Geant4 2212
 
  • I.V. Agapov, G.A. Blair, J. Carter
    Royal Holloway, University of London, Surrey
  • O. Dadoun
    LAL, Orsay
 
  BDSIM is a code that combines accelerator-style particle tracking with traditional Geant-style tracking based on Runge-Kutta techniques. This approach means that particle beams can be tracked efficiently when inside the beampipe, while also enabling full Geant4 processes when beam-particles interact with beamline apertures. Tracking of the resulting secondary particles is automatic. The code is described, including a new MAD-style interface and new geometry description, and key performance parameters are listed.