• S.V. Kutsaev, R.O. Bolgov, M. Gusarova, D.S. Kamenshikov, K.I. Nikolskiy, A.Yu. Smirnov, N.P. Sobenin, S.E. Toporkov
  MEPhI, Moscow

This paper presents the results of a research that analyzed the possibility of using a magnetic coupled disk-loaded structure (DLS-M) as an accelerating structure. DLS-M seems to have decent advantages comparing to the classical electrical coupled structure (DLS). The electrodynamics parameters of such a structure at various modes in C-band for a wide range of phase velocities as a function of aperture radii and coupling slot sizes are presented. Both forward and backward travelling wave regimes are considered. The essential parameters are compared to those of classical DLS. The design of an input coupler to the accelerator consisting of this type structure cells is also presented.

• L.V. Kravchuk, V.V. Paramonov
  RAS/INR, Moscow
• A. Anisimov, M.V. Lalayan, A.Yu. Smirnov, N.P. Sobenin
  MEPhI, Moscow
• D. Churanov, E.V. Ivanov, S.V. Kutsaev, M. Urbant, A.A. Zavadtsev, D.A. Zavadtsev
  Nano, Moscow
• A. Donat, W. Köhler, M. Krasilnikov, J. Meissner, M. Pohl, J. Schultze, F. Stephan, G. Trowitzsch, R.W. Wenndorff
  DESY Zeuthen, Zeuthen
• C. Gerth, M. Hoffmann, M. Hüning
  DESY, Hamburg

Transverse Deflecting Systems are designated for longitudinal beam diagnostics of ultra-short electron bunches in modern FEL projects. At the European XFEL, Transverse Deflecting Systems are foreseen at three locations. A prototype of the TDS in the injector of the European XFEL will be installed at PITZ which is identical in terms of deflecting structure, low-level RF system and powerful RF hardware. This PITZ TDS has the aim to prove the required performance for all TDS subsystems as well as serve as a diagnostics tool for PITZ. Results of the test cells measurements of a S-band travelling wave structure are presented, showing very good agreement with calculated parameters. RF power supply system, including 3 MW klystron and other RF hardware, is described. Solid state 130 kV Marx modulator has been developed for the klystron feeding. 10 kV module of the modulator has been built and tested. The modulator allows for high voltage shutdown within pulse.