EPAC 2006 - List of Authors

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Seryi, A.

Paper	Title	Page
MOPLS047	Design of an Asymmetric Super-B Factory	646
	J. Seeman, Y. Cai, A. Novokhatski, A. Seryi, M.K. Sullivan, U. Wienands SLAC, Menlo Park, California M.E. Biagini, P. Raimondi INFN/LNF, Frascati (Roma)
	Submitted for the High Luminosity Study Group for an Asymmetric Single-pass Super-B Factory: Parameters are being studied for a high luminosity e⁺e^- collider operating at the Upsilon 4S that would deliver a luminosity of over 10³⁶/cm²/s. This collider would use a novel combination of linear collider and storage ring techniques. In this scheme an electron beam and a positron beam are first stored in fast-damping and low-emittance damping rings, then extracted, accelerated, compressed and focused to the interaction point. After collision the two beams are decelerated and re-injected in the damping rings to be damped and extracted for collision again. The explored beam parameters are similar to those used in the design of the International Linear Collider, except for the beam energies. Design parameters for very flat beams and round beams have been studied.
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.
MOPLS060	Design of an Interaction Region with Head-on Collisions for the ILC	682
	J. Payet, O. Napoly, C. Rippon, D. Uriot CEA, Gif-sur-Yvette M. Alabau Pons, P. Bambade, J. Brossard, O. Dadoun, C. Rimbault LAL, Orsay D.A.-K. Angal-Kalinin, F. Jackson CCLRC/DL/ASTeC, Daresbury, Warrington, Cheshire R. Appleby UMAN, Manchester L. Keller, Y. Nosochkov, A. Seryi SLAC, Menlo Park, California
	An interaction region with head-on collisions is considered an alternative to the baseline configuration of the International Linear Collider, including two interaction regions with finite crossing-angles (2 and 20 mrad). Although more challenging from the point of view of the beam extraction, the head-on scheme is favoured by the experiments because it allows a more convenient detector configuration, particularly in the forward region. The optics of the head-on extraction is revisited by separating the e⁺ and e^- beams horizontally, first by electrostatic separators operated at their LEP nominal field and then using a defocusing quadrupole of the final focus beam line. In this way the septum magnet is protected from the beamstrahlung power. Newly optimized final focus and extraction optics are presented, including a first look at post-collision diagnostics. The influence of parasitic collisions is shown to lead to a region of stable collision parameters. Beam and beamstrahlung photon losses are calculated along the extraction elements. Issues concerning the design of the large bore superconducting final focus magnets, common to both incoming and outgoing beams, are considered.
MOPLS066	Direct Measurement of Geometric and Resistive Wakefields in Tapered Collimators for the International Linear Collider	697
	N.K. Watson, D. Adey, M.C. Stockton Birmingham University, Birmingham D.A.-K. Angal-Kalinin, C.D. Beard, J.L. Fernandez-Hernando, F. Jackson CCLRC/DL/ASTeC, Daresbury, Warrington, Cheshire R. Arnold, R.A. Erickson, C. Hast, T.W. Markiewicz, S. Molloy, M.C. Ross, S. Seletskiy, A. Seryi, Z. Szalata, P. Tenenbaum, M. Woodley, M. Woods SLAC, Menlo Park, California R.J. Barlow, A. Bungau, R.M. Jones, G.Yu. Kourevlev, A. Mercer UMAN, Manchester D.A. Burton, J.D.A. Smith, A. Sopczak, R. Tucker Lancaster University, Lancaster C. Densham, G. Ellwood, R.J.S. Greenhalgh, J. O'Dell CCLRC/RAL, Chilton, Didcot, Oxon Y.K. Kolomensky UCB, Berkeley, California M. Kärkkäinen, W.F.O. Müller, T. Weiland TEMF, Darmstadt N. Shales Microwave Research Group, Lancaster University, Lancaster M. Slater University of Cambridge, Cambridge I. Zagorodnov DESY, Hamburg F. Zimmermann CERN, Geneva
	Precise collimation of the beam halo is required in the ILC to prevent beam losses near the interaction region that could cause unacceptable backgrounds for the physics detector. The necessarily small apertures of the collimators lead to transverse wakefields that may result in beam deflections and increased emittance. A set of collimator wakefield measurements has previously been performed in the ASSET region of the SLAC LINAC. We report on the next phase of this programme, which is carried out at the recently commissioned End Station A test facility at SLAC. Measurements of resistive and geometric wakefields using tapered collimators are compared with model predictions from MAFIA and GdfidL and with analytic calculations.
MOPLS067	Test Beam Studies at SLAC's End Station A, for the International Linear Collider	700
	M. Woods, C. Adolphsen, R. Arnold, G.B. Bowden, G.R. Bower, R.A. Erickson, H. Fieguth, J.C. Frisch, C. Hast, R.H. Iverson, Z. Li, T.W. Markiewicz, D.J. McCormick, S. Molloy, J. Nelson, M.T.F. Pivi, M.C. Ross, S. Seletskiy, A. Seryi, S. Smith, Z. Szalata, P. Tenenbaum SLAC, Menlo Park, California D. Adey, M.C. Stockton, N.K. Watson Birmingham University, Birmingham M. Albrecht, M.H. Hildreth Notre Dame University, Notre Dame, Iowa W.W.M. Allison, V. Blackmore, P. Burrows, G.B. Christian, C.C. Clarke, G. Doucas, A.F. Hartin, B. Ottewell, C. Perry, C. Swinson, G.R. White OXFORDphysics, Oxford, Oxon D.A.-K. Angal-Kalinin, C.D. Beard, J.L. Fernandez-Hernando, F. Jackson, A. Kalinin CCLRC/DL/ASTeC, Daresbury, Warrington, Cheshire R.J. Barlow, A. Bungau, G.Yu. Kourevlev, A. Mercer UMAN, Manchester S.T. Boogert Royal Holloway, University of London, Surrey D.A. Burton, J.D.A. Smith, R. Tucker Lancaster University, Lancaster W.E. Chickering, C.T. Hlaing, O.N. Khainovski, Y.K. Kolomensky, T. Orimoto UCB, Berkeley, California C. Densham, R.J.S. Greenhalgh CCLRC/DL, Daresbury, Warrington, Cheshire V. Duginov, S.A. Kostromin, N.A. Morozov JINR, Dubna, Moscow Region G. Ellwood, P.G. Huggard, J. O'Dell CCLRC/RAL, Chilton, Didcot, Oxon F. Gournaris, A. Lyapin, B. Maiheu, S. Malton, D.J. Miller, M.W. Wing UCL, London M.B. Johnston University of Oxford, Clarendon Laboratory, Oxford M.F. Kimmitt University of Essex, Physics Centre, Colchester H.J. Schriber, M. Viti DESY Zeuthen, Zeuthen N. Shales, A. Sopczak Microwave Research Group, Lancaster University, Lancaster N. Sinev, E.T. Torrence University of Oregon, Eugene, Oregon M. Slater, M.T. Thomson, D.R. Ward University of Cambridge, Cambridge Y. Sugimoto KEK, Ibaraki S. Walston LLNL, Livermore, California T. Weiland TEMF, Darmstadt M. Wendt Fermilab, Batavia, Illinois I. Zagorodnov DESY, Hamburg F. Zimmermann CERN, Geneva
	The SLAC Linac can deliver to End Station A a high-energy test beam with similar beam parameters as for the International Linear Collider for bunch charge, bunch length and bunch energy spread. ESA beam tests run parasitically with PEP-II with single damped bunches at 10Hz, beam energy of 28.5 GeV and bunch charge of (1.5-2.0)·1010 electrons. A 5-day commissioning run was performed in January 2006, followed by a 2-week run in April. We describe the beamline configuration and beam setup for these runs, and give an overview of the tests being carried out. These tests include studies of collimator wakefields, prototype energy spectrometers, prototype beam position monitors for the ILC Linac, and characterization of beam-induced electro-magnetic interference along the ESA beamline.
MOPLS077	The 2mrad Crossing Angle Interaction Region and Extraction Line	730
	R. Appleby UMAN, Manchester D.A.-K. Angal-Kalinin CCLRC/DL/ASTeC, Daresbury, Warrington, Cheshire P. Bambade, O. Dadoun LAL, Orsay J. Carter Royal Holloway, University of London, Surrey L. Keller, K. C. Moffeit, Y. Nosochkov, A. Seryi, C.M. Spencer SLAC, Menlo Park, California O. Napoly CEA, Gif-sur-Yvette B. Parker BNL, Upton, Long Island, New York
	A complete optics design for the 2mrad crossing angle interaction region and extraction line was presented at Snowmass 2005. Since this time, the design task force has been working on developing and improving the performance of the extraction line. The work has focused on optimising the final doublet parameters and on reducing the power losses resulting from the disrupted beam transport. In this paper, the most recent status of the 2mrad layout and the corresponding performance are presented.