Author: Matveev, A.S.
Paper Title Page
WEPNEC16 Electron Outcoupling System of Novosibirsk Free Electron Laser Facility - Beam Dynamics Calculation and the First Experiments 98
 
  • Ya.V. Getmanov, A.S. Matveev, O.A. Shevchenko, N.A. Vinokurov
    BINP SB RAS, Novosibirsk, Russia
  • Ya.V. Getmanov, A.S. Matveev, N.A. Vinokurov
    NSU, Novosibirsk, Russia
  
  The radiation power of the FEL with optical cavity can be limited by the overheating of reflecting mirrors. In the electron outcoupling scheme electron beam radiates the main power at a slight angle to the optical axis. For this, it is necessary to divide undulator by a dipole magnet at least in two parts - the first for the electron beam bunching in the field of the main optical mode, and the second for the power radiation by deflected beam. Electron outcoupling system is installed on the third FEL based on the multiturn energy recovery linac of the Novosibirsk Free Electron Laser facility (NovoFEL). It consists of three undulators, dipole correctors and two quadrupole lenses assembled between them. There are two different configurations of the system since the electrons can be deflected in either the second or the third undulator. The electron beam dynamics calculations and the results of the first experiments are presented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2019-WEPNEC16  
About • paper received ※ 01 October 2019       paper accepted ※ 06 November 2019       issue date ※ 24 June 2020  
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THCOZBS01
 Novosibirsk ERL injector  
 
  • O.A. Shevchenko, V.S. Arbuzov, K.N. Chernov, I.V. Davidyuk, O.I. Deichuli, E.N. Dementyev, B.A. Dovzhenko, Ya.V. Getmanov, A.A. Kondakov, V.R. Kozak, E.V. Kozyrev, S.A. Krutikhin, G.N. Kulipanov, E.A. Kuper, I.V. Kuptsov, G.Y. Kurkin, A.S. Matveev, L.E. Medvedev, S.V. Motygin, V.N. Osipov, V.K. Ovchar, V.M. Petrov, A.M. Pilan, V.M. Popik, V.V. Repkov, T.V. Salikova, M.A. Scheglov, I.K. Sedlyarov, S.S. Serednyakov, A.N. Skrinsky, S.V. Tararyshkin, V.G. Tcheskidov, A.G. Tribendis, N.A. Vinokurov, V. Volkov
    BINP SB RAS, Novosibirsk, Russia
  • I.V. Davidyuk, Ya.V. Getmanov, E.V. Kozyrev, S.S. Serednyakov, N.A. Vinokurov
    NSU, Novosibirsk, Russia
  • A.G. Tribendis
    NSTU, Novosibirsk, Russia
  
  The Novosibirsk ERL is the first in the world multi-orbit ERL with high average current. It is used as a source of electron bunches for three powerful FEL-oscillators which operate in CW mode. In present configuration the ERL Injector comprises a 300-kV electrostatic gun with thermionic cathode, as well as one bunching and two accelerating cavities separated by the drift space which is used for bunch compression. In near future the new RF gun will be added to this configuration. The basic requirement for the injector is to provide beam parameters necessary for FEL operation. These parameters include bunch charge more than 1 nQ and repetition rate about 10 MHz. Very small emittance and very short pulse duration are not required in our case because of long FEL radiation wavelength and low RF frequency of the main linac. We present detailed description of the injector setup and results of beam parameters measurements. The measured parameters are compared with simulation results. We also discuss future upgrade which includes installation of the new RF gun.  
slides icon Slides THCOZBS01 [18.483 MB]  
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