Author: Shaker, H.
Paper Title Page
MOPAB095 Concept Design for the CLS2 Accelerator Complex 354
 
  • M.J. Boland, P.J. Hunchak
    University of Saskatchewan, Saskatoon, Canada
  • C.K. Baribeau, D. Bertwistle, J.M. Patel, H. Shaker, X. Shen, M.J. Sigrist
    CLS, Saskatoon, Saskatchewan, Canada
  • F. Le Pimpec
    EuXFEL, Schenefeld, Germany
  • E.J. Wallén
    LBNL, Berkeley, California, USA
  
  The Cana­dian Light Source has been in op­er­a­tion since 2005 and is now look­ing at a de­sign con­cept to up­grade to a fourth gen­er­a­tion stor­age ring. A brief overview is given of a pos­si­ble ac­cel­er­a­tor com­plex lay­out, in­clud­ing some de­tails on the lat­tice de­sign and in­jec­tion sys­tem. A full en­ergy linac is being ex­plored as an op­tion for top-up in­jec­tion and to fu­ture proof the fa­cil­ity for a po­ten­tial FEL up­grade in the fu­ture.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB095  
About • paper received ※ 23 May 2021       paper accepted ※ 28 July 2021       issue date ※ 13 August 2021  
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TUPAB071 Beam Line Design and Instrumentation for THz@PITZ - the Proof-of-Principle Experiment on a THz SASE FEL at the PITZ Facility 1528
 
  • T. Weilbach, P. Boonpornprasert, G.Z. Georgiev, G. Koss, M. Krasilnikov, X. Li, A. Lueangaramwong, F. Mueller, A. Oppelt, S. Philipp, F. Stephan, L.V. Vu
    DESY Zeuthen, Zeuthen, Germany
  • H. Shaker
    CLS, Saskatoon, Saskatchewan, Canada
  
  In order to allow THz pump-X-ray probe ex­per­i­ments at full bunch rep­e­ti­tion rate for users at the Eu­ro­pean XFEL, the Photo In­jec­tor Test Fa­cil­ity at DESY in Zeuthen (PITZ) is build­ing a pro­to­type of an ac­cel­er­a­tor-based THz source. The goal is to gen­er­ate THz SASE FEL ra­di­a­tion with a mJ en­ergy level per bunch using an LCLS-I un­du­la­tor dri­ven by the elec­tron beam from PITZ. There­fore, the ex­ist­ing PITZ beam line is ex­tended into a tun­nel annex down­stream of the ex­ist­ing ac­cel­er­a­tor tun­nel. The beam line ex­ten­sion in the PITZ tun­nel con­sists of three quadru­pole mag­nets, a bunch com­pres­sor, a col­li­ma­tion sys­tem and a beam dump. In the sec­ond tun­nel a di­pole mag­net al­lows to serve two beam lines, one of them the THz@​PITZ beam line. It con­sists of one LCLS-I un­du­la­tor for the pro­duc­tion of the THz ra­di­a­tion, a quadru­pole triplet in front of it and a quadru­pole dou­blet be­hind it. For the elec­tron beam di­ag­nos­tic six new screen sta­tions are built, three of them also allow for the ob­ser­va­tion of the THz ra­di­a­tion for mea­sure­ments. In ad­di­tion six BPMs and a new BLM sys­tem for ma­chine pro­tec­tion and FEL gain curve mea­sure­ment will be in­stalled. The progress of this work will be pre­sented.  
poster icon Poster TUPAB071 [1.978 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB071  
About • paper received ※ 18 May 2021       paper accepted ※ 14 June 2021       issue date ※ 13 August 2021  
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WEPAB274 Numerical Study of Beam Dynamics in PITZ Bunch Compressor 3285
 
  • A. Lueangaramwong, Z. Aboulbanine, G.D. Adhikari, N. Aftab, P. Boonpornprasert, N. Chaisueb, G.Z. Georgiev, J. Good, M. Groß, C. Koschitzki, M. Krasilnikov, X. Li, O. Lishilin, D. Melkumyan, H.J. Qian, G. Shu, F. Stephan, G. Vashchenko, T. Weilbach
    DESY Zeuthen, Zeuthen, Germany
  • H. Shaker
    CLS, Saskatoon, Saskatchewan, Canada
  
  A mag­netic bunch com­pres­sor has been re­cently de­signed for an ac­cel­er­a­tor-based THz source which is under de­vel­op­ment at the Photo In­jec­tor Test fa­cil­ity at DESY in Zeuthen (PITZ). The THz source is as­sumed to be a pro­to­type for an ac­cel­er­a­tor-based THz source for pump-probe ex­per­i­ments at the Eu­ro­pean XFEL. As an elec­tron bunch is com­pressed to achieve higher bunch cur­rents for the THz source, we in­ves­ti­gate the beam dy­nam­ics in the bunch com­pres­sor by nu­mer­i­cal sim­u­la­tions. A start-to-end sim­u­la­tion op­ti­mizer has been de­vel­oped by com­bin­ing the use of ASTRA, IM­PACT-T, and OCELOT to sup­port the de­sign of the THz source pro­to­type. Co­her­ent syn­chro­tron ra­di­a­tion ef­fects de­grade the com­pres­sion per­for­mance for our study cases with bunch charges up to 4 nC and beam en­ergy of 17 MeV at a bend­ing angle of 19 de­grees. Sim­u­la­tion and pre­lim­i­nary beam char­ac­ter­is­tic re­sults will be pre­sented in this paper.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB274  
About • paper received ※ 11 May 2021       paper accepted ※ 06 July 2021       issue date ※ 23 August 2021  
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