Keyword: undulator
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TUPAF23 Start-to-End Simulations of THz SASE FEL Proof-of-Principle Experiment at PITZ electron, simulation, FEL, emittance 246
  • M. Krasilnikov, P. Boonpornprasert, F. Stephan
    DESY Zeuthen, Zeuthen, Germany
  • H.-D. Nuhn
    SLAC, Menlo Park, California, USA
  • E. Schneidmiller, M.V. Yurkov
    DESY, Hamburg, Germany
  The Photo Injector Test facility at DESY in Zeuthen (PITZ) develops high brightness electron sources for modern linac-based Free Electron Lasers (FELs). The PITZ accelerator has been proposed as a prototype for a tunable, high power THz source for pump and probe experiments at the European XFEL. A Self-Amplified Spontaneous Emission (SASE) FEL is considered to generate the THz pulses. High radiation power can be achieved by utilizing high charge (4 nC) shaped electron bunches from the PITZ photo injector. THz pulse energy of up to several mJ is expected from preliminary simulations for 100 um radiation wavelength. For the proof-of-principle experiments a re-usage of LCLS-I undulators at the end of the PITZ beamline is under studies. One of the challenges for this setup is transport and matching of the space charge dominated electron beam through the narrow vacuum chamber. Start-to-end simulations for the entire experimental setup - from the photocathode to the SASE THz generation in the undulator section - have been performed by combination of several codes: ASTRA, SC and GENESIS-1.3. The space charge effect and its impact onto the output THz radiation have been studied. The results of these simulations will be presented and discussed.  
slides icon Slides TUPAF23 [2.534 MB]  
DOI • reference for this paper ※  
About • paper received ※ 18 October 2018       paper accepted ※ 24 October 2018       issue date ※ 26 January 2019  
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TUPAG21 Novel, Fast, Open-Source Code for Synchrotron Radiation Computation on Arbitrary 3D Geometries GPU, radiation, simulation, electron 309
  • D.A. Hidas
    BNL, Upton, Long Island, New York, USA
  Open Source Code for Advanced Radiation Simulation (OSCARS) is an open-source project ( developed at Brookhaven National Laboratory for the computation of synchrotron radiation from arbitrary charged particle beams in arbitrary and time-dependent mag- netic and electric fields on arbitrary geometries in 3D. Computational speed is significantly increased with the use of built-in multi-GPU and multi-threaded techniques which are suitable for both small scale and large scale computing infrastructures. OSCARS is capable of computing spectra, flux, and power densities on simple surfaces as well as on objects imported from common CAD software. It is additionally applicable in the regime of high-field acceleration. The methodology behind OSCARS cal- culations will be discussed along with practical examples and applications to modern accelerators and light sources.  
slides icon Slides TUPAG21 [1.712 MB]  
DOI • reference for this paper ※  
About • paper received ※ 20 October 2018       paper accepted ※ 18 December 2018       issue date ※ 26 January 2019  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)