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Title Design Calculation on Beam Dynamics and THz Radiation of Delhi Light Source
  • V.J. Joshi, R.K. Bhandari, S. Ghosh, D. Kanjilal, B. Karmakar, J. Karmakar, N. Kumar, S. Tripathi
    IUAC, New Delhi, India
  • A. Aryshev
    KEK, Ibaraki, Japan
  • U. Lehnertpresenter
    HZDR, Dresden, Germany
Abstract The development of a compact light source facility, Delhi Light Source (DLS), based on a pre-bunched free electron laser, has been initiated at Inter University Accelerator Centre (IUAC).* A photocathode-based normal conducting RF gun will generate a low-emittance 'comb' electron beam with a maximum energy of ~8 MeV which when injected into ~ 1.5 metre compact undulator magnet (~0.4 < K_{rms} < ~2) will produce intense THz radiation in the frequency range of 0.15 THz to 3.0 THz.** Each microbunch of the electron beam is expected to emit super-radiant radiation, and an enhancement in the overall spectral power can be achieved if the frequency (inverse of the spatial separation) of the electron microbunches coincides with that of the THz radiation being emitted. There will be provisions to vary the spatial separation between the successive microbunches of the 'comb' beam so that by varying the undulator magnetic field and/or electron energy, the THz frequency range can be tuned. The results of the beam optics for the entire range of frequencies mentioned above along with the detailed information of the radiation to be generated from the facility will be presented in the paper.
Footnotes & References * S. Ghosh et al., NIMB-2017, in press.
** S.Tripathi et al., Proc. of this conference.
Funding This project is jointly supported by Inter University Accelerator Center and Board of Research in Nuclear Science.
Paper download MOP047.PDF [1.254 MB / 3 pages]
Poster download MOP047_POSTER.PDF [0.959 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 I
Date 21-Aug-17   15:30–18:30
Main Classification New Lasing & Status of Projects
Keywords ion, radiation, undulator, electron, simulation
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
Copyright © 2018 by JACoW, Geneva, Switzerland     CC-BY Creative Commons License
cc Creative Commons Attribution 3.0