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https://doi.org/10.18429/JACoW-FEL2017-WEP062
Title Optical Beam Quality Analysis of the Clara Test Facility Using Second Moment Analysis
Authors
  • H.M. Castaneda Cortes, D.J. Dunning, M.D. Roper, N. Thompson
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
Abstract We studied and characterised the FEL optical radiation in simulations of the CLARA FEL test facility under development at Daresbury Laboratory in the UK. In particular, we determined the optical beam quality coefficient, waist position and other source properties corresponding to different potential FEL operating modes via wavefront propagation in free space using OPC (Optical Propagation Code) and Second Moment Analysis. We were able to find the operation mode and undulator design for which the optical beam has the optimum quality at highest brightness. Furthermore, we studied the way that different properties of the electron bunches (emittance, peak current, bunch length) affect the optical beam. We are now able to understand how the optical beam will propagate from the end of the undulator and through the photon transport system to the experimental stations. This knowledge is necessary for the correct design of the photon transport and diagnostic systems.
Paper download WEP062.PDF [0.340 MB / 4 pages]
Poster download WEP062_POSTER.PDF [0.495 MB]
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Conference FEL2017, Santa Fe, NM, USA
Series International Free Electron Laser Conference (38th)
Proceedings Link to full FEL2017 Proccedings
Session Poster III
Date 23-Aug-17   15:30–17:30
Main Classification Undulators, Photon Diagnostics, Beamline
Keywords ion, undulator, brightness, FEL, electron
Publisher JACoW, Geneva, Switzerland
Editors Kip Bishofberger (LANL, Los Alamos, NM, USA); Bruce Carlsten (LANL, Los Alamos, NM, USA); Volker RW Schaa (GSI, Darmstadt, Germany)
ISBN 978-3-95450-179-3
Published February 2018
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