Paper |
Title |
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WEPCH150 |
The Accelerator Markup Language and the Universal Accelerator Parser
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2278 |
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- D. Sagan, M. Forster
Cornell University, Laboratory for Elementary-Particle Physics, Ithaca, New York
- D.A. Bates, A. Wolski
LBNL, Berkeley, California
- T. Larrieu, Y. Roblin
Jefferson Lab, Newport News, Virginia
- T.A. Pelaia
ORNL, Oak Ridge, Tennessee
- S. Reiche
UCLA, Los Angeles, California
- F. Schmidt
CERN, Geneva
- P. Tenenbaum, M. Woodley
SLAC, Menlo Park, California
- N.J. Walker
DESY, Hamburg
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A major obstacle to collaboration on accelerator projects has been the sharing of lattice description files between modeling codes. To address this problem, a lattice description format called Accelerator Markup Language (AML) has been created. AML is based upon the standard eXtensible Markup Language (XML) format; this provides the flexibility for AML to be easily extended to satisfy changing requirements. In conjunction with AML, a software library, called the Universal Accelerator Parser (UAP), is being developed to speed the integration of AML into any program. The UAP is structured to make it relatively straightforward (by giving appropriate specifications) to read and write lattice files in any format. This will allow programs that use the UAP code to read a variety of different file formats. Additionally this will greatly simplify conversion of files from one format to another. Currently, besides AML, the UAP supports the MAD lattice format.
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MOPLS045 |
Achieving a Luminosity of 1034/cm2/s in the PEP-II B-factory
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643 |
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- J. Seeman, J. Browne, Y. Cai, W.S. Colocho, F.-J. Decker, M.H. Donald, S. Ecklund, R.A. Erickson, A.S. Fisher, J.D. Fox, S.A. Heifets, R.H. Iverson, A. Kulikov, A. Novokhatski, V. Pacak, M.T.F. Pivi, C.H. Rivetta, M.C. Ross, P. Schuh, K.G. Sonnad, M. Stanek, M.K. Sullivan, P. Tenenbaum, D. Teytelman, J.L. Turner, D. Van Winkle, M. Weaver, U. Wienands, W. Wittmer, M. Woodley, Y.T. Yan, G. Yocky
SLAC, Menlo Park, California
- M.E. Biagini
INFN/LNF, Frascati (Roma)
- W. Kozanecki
CEA, Gif-sur-Yvette
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For the PEP-II Operation Staff: PEP-II is an asymmetric e+e- collider operating at the Upsilon 4S and has recently set several performance records. The luminosity has exceeded 1x1034/cm2/s and has delivered an integrated luminosity of 728/pb in one day. PEP-II operates in continuous injection mode for both beams, boosting the integrated luminosity. The peak positron current has reached 2.94 A and 1.74 A of electrons in 1732 bunches. The total integrated luminosity since turn on in 1999 has reached over 333/fb. This paper reviews the present performance issues of PEP-II and also the planned increase of luminosity in the near future to over 2 x 1034/cm2/s. Upgrade details and plans are discussed.
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MOPLS066 |
Direct Measurement of Geometric and Resistive Wakefields in Tapered Collimators for the International Linear Collider
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697 |
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- 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
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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.
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MOPLS067 |
Test Beam Studies at SLAC's End Station A, for the International Linear Collider
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700 |
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- 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
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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.
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