Author: Andonian, G.
Paper Title Page
MOPMN009 Cross-platform and Cloud-based Access to Multiple Particle Accelerator Codes via Application Containers 720
 
  • D.L. Bruhwiler, G. Andonian, M.A. Harrison, S. Seung
    RadiaBeam, Santa Monica, California, USA
  • D.L. Bruhwiler, R. Nagler, S.D. Webb
    RadiaSoft LLC, Boulder, Colorado, USA
  • P. Moeller
    Bivio Software Inc., Boulder, USA
  • T.V. Shaftan
    BNL, Upton, Long Island, New York, USA
  
  Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0006284.
Particle accelerator and radiation modeling codes focus on specific problems, rely on complicated command-line interfaces, are sometimes limited to a small number of computing platforms, and can be difficult to install. There is also a growing need to use two or more codes together for end-to-end design or for complicated sub-systems. RadTrack is a lightweight cross-platform GUI for such codes, based on the Qt framework and PyQt bindings for Python. RadTrack is designed to support multiple codes, placing no burden on the corresponding development teams. Elegant and the Synchrotron Radiation Workshop (SRW) are supported now in a pre-beta stage, and support for GENESIS 1.3 is under development. These codes are being containerized via the open source Docker platform for use in the cloud. The open source Vagrant and Virtual Box are used for MacOS and Windows. We discuss RadTrack and our vision for cloud computing. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPMN009  
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WEPWA008 Measuring the Self-modulation Instability of Electron and Positron Bunches in Plasmas 2506
 
  • P. Muggli, O. Reimann
    MPI-P, München, Germany
  • E. Adli, V.K.B. Olsen
    University of Oslo, Oslo, Norway
  • J. Allen, S.J. Gessner, S.Z. Green, M.J. Hogan, M.D. Litos, B.D. O'Shea, V. Yakimenko
    SLAC, Menlo Park, California, USA
  • L.D. Amorim
    IST, Lisboa, Portugal
  • G. Andonian, C. Joshi, K.A. Marsh, W.B. Mori, N. Vafaei-Najafabadi, O. Williams
    UCLA, Los Angeles, California, USA
  • N.C. Lopes, L.O. Silva, J. Vieira
    Instituto Superior Tecnico, Lisbon, Portugal
  
  The self-modulation instability (SMI) * can be used to transform a long, charged particle bunch into a train of periodically spaced shorter bunches. The SMI occurs in a plasma when the plasma wake period is much shorter than the bunch length. The train of short bunches can then resonantly drive wakefields to much larger amplitude that the long bunch can. The SMI will be used in the AWAKE experiment at CERN, where the wakefields will be driven by a high-energy (400GeV) proton bunch. ** However, most of the SMI physics can be tested with the electron and positron bunches available at SLAC-FACET. *** In this case, the bunch is ~10 plasma wavelengths long, but can drive wakefields in the GV/m range. FACET has a meter-long plasma **** and is well equipped in terms of diagnostic for SMI detection: optical transition radiation for transverse bunch profile measurements, coherent transition radiation interferometry for radial modulation period measurements and energy spectrometer for energy loss and gain measurement of the drive bunch particles. The latest experimental results will be presented.
* N. Kumar et al., PRL 104, 255003 (2010)
** AWAKE Collaboration, PPCF 56 084013 (2014)
*** J. Vieira et al., PoP 19, 063105 (2012)
**** S.Z. Green et al., PPCF 56, 084011 (2014)
 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPWA008  
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