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Title GPT-CSR: A New Simulation Code for CSR Effects
  • S.B. van der Geer, M.J. de Loos
    Pulsar Physics, Eindhoven, The Netherlands
  • I. Setija, P.W. Smorenburg
    ASML Netherlands B.V., Veldhoven, The Netherlands
  • P.H. Williams
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
Abstract For future applications of high-brightness electron beams, including the design of next generation FEL's, correct correct simulation of Coherent Synchrotron Radiation (CSR) is essential as it potentially degrades beam quality to unacceptable levels. However, the long interaction lengths compared to the bunch length, numerical cancellation, and difficult 3D retardation conditions make accurate simulation of CSR effects notoriously difficult. To ease the computational burden, CSR codes often make severe simplifications such as an ultra relativistic bunch travelling on a prescribed reference trajectory. Here we report on a new CSR model, implemented in the General Particle Tracer (GPT) code, that avoids most of the usual assumptions: It directly evaluates the Lienard-Wiechert potentials based on the stored history of the beam, it makes no assumptions about reference trajectories, while also taking into account the transverse size of the beam. First results demonstrating microbunching gain in a chicane are presented.
Paper download THA1WA03.PDF [0.978 MB / 3 pages]
Slides download THA1WA03_TALK.PDF [1.799 MB]
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Conference FLS2018, Shanghai, China
Series ICFA Advanced Beam Dynamics Workshop (60th)
Proceedings Link to full FLS2018 Proccedings
Session WG-A
Date 08-Mar-18   09:00–10:30
Main Classification A - Linac-based Light Sources
Keywords ion, simulation, radiation, bunching, electron
Publisher JACoW Publishing, Geneva, Switzerland
Editors Yong Ho Chin (KEK, Tsukuba, Japan); Zhentang Zhao (SINAP, Shanghai, China); Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Volker RW Schaa (GSI, Darmstadt, Germany)
ISBN 978-3-95450-206-6
Published June 2018
Copyright © 2018 by JACoW, Geneva, Switzerland     CC-BY Creative Commons License
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