Author: Youngman, C.
Paper Title Page
TUPAB122 SASE3 Variable Polarization Project at the European XFEL 1678
 
  • S.K. Karabekyan, S. Abeghyan, M. Bagha-Shanjani, S. Casalbuoni, U. Englisch, G. Geloni, J. Grünert, S. Hauf, C. Holz, D. La Civita, J. Laksman, D. Mamchyk, M.P. Planas, F. Preisskorn, S. Serkez, H. Sinn, A. Violante, G. Wellenreuther, M. Wuenschel, M. Yakopov, C. Youngman
    EuXFEL, Hamburg, Germany
  • A. Block, W. Decking, N. Golubeva, K. Knebel, T. Ladwig, D.L. Lenz, D. Lipka, R. Mattusch, N. Mildner, E. Negodin, D. Nölle, J. Prenting, F. Saretzki, M. Schlösser, F. Schmidt-Föhre, E. Schneidmiller, D. Thoden, T. Wamsat, S. Wendt, T. Wilksen, T. Wohlenberg, M.V. Yurkov
    DESY, Hamburg, Germany
  • M. Brügger, M. Calvi, S. Danner, R. Ganter, L. Huber, A. Keller, M.S. Schmidt, T. Schmidt
    PSI, Villigen PSI, Switzerland
  • D.E. Kim
    PAL, Pohang, Republic of Korea
  • Y. Li
    IHEP, People’s Republic of China
 
  At the Eu­ro­pean XFEL, two un­du­la­tor sys­tems for hard and one for soft X-rays have been suc­cess­fully put into op­er­a­tion. The SASE3 soft X-ray un­du­la­tor sys­tem gen­er­ates lin­early po­lar­ized ra­di­a­tion in the hor­i­zon­tal plane. One of the re­quire­ments for ex­tend­ing the ra­di­a­tion char­ac­ter­is­tics is the abil­ity to ob­tain dif­fer­ent po­lar­iza­tion modes. These in­clude both right and left cir­cu­lar, el­lip­ti­cal po­lar­iza­tion, or lin­ear po­lar­iza­tion at an ar­bi­trary angle. For this pur­pose, a sys­tem con­sist­ing of four APPLE X he­li­cal un­du­la­tors de­vel­oped at the Paul Scher­rer In­sti­tute (PSI) is used. This paper pre­sents the de­sign pa­ra­me­ters of the SASE3 un­du­la­tor sys­tem after mod­i­fy­ing it with the he­li­cal af­ter­burner. It also de­scribes the meth­ods and the de­sign so­lu­tions dif­fer­ent from those used at PSI. The sta­tus and sched­ule of the pro­ject are in­tro­duced.  
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB122  
About • paper received ※ 19 May 2021       paper accepted ※ 31 May 2021       issue date ※ 27 August 2021  
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