Author: Kourkafas, G.
Paper Title Page
MOPPP032 Longitudinal Phase Space Studies at the PITZ Facility 631
 
  • M. Mahgoub, J. Bähr, H.-J. Grabosch, M. Groß, L. Hakobyan, G. Klemz, G. Kourkafas, M. Krasilnikov, D. Malyutin, A. Oppelt, M. Otevřel, B. Petrosyan, K. Rosbach, F. Stephan, G. Vashchenko
    DESY Zeuthen, Zeuthen, Germany
  • I.I. Isaev
    MEPhI, Moscow, Russia
  • Ye. Ivanisenko
    IERT, Kharkov, Ukraine
  • M. Khojoyan
    ANSL, Yerevan, Armenia
  • J. Li
    USTC/NSRL, Hefei, Anhui, People's Republic of China
  • B. Marchetti
    INFN-Roma II, Roma, Italy
  • D. Richter
    HZB, Berlin, Germany
  • J. Rönsch-Schulenburg
    Uni HH, Hamburg, Germany
 
  Photoinjectors are a cornerstone for short-wavelength Free Electron Lasers (FELs) like FLASH and the European XFEL in Hamburg, Germany. The Photo Injector Test facility at DESY, location Zeuthen (PITZ), was built to develop and optimize such photoinjectors. The PITZ facility is capable of generating long trains of electron bunches, which can be accelerated up to ~25 MeV/c. Studying and optimizing the longitudinal properties of the electron bunch is an important topic at PITZ. A streak system consisting of Silica Aerogel radiators, optical transition radiation (OTR) screens, optical transmission line, and a streak camera is used to study the longitudinal properties with an accuracy of some ps. Due to the high radiation level in the facility, many of the lenses in the optical transmission line have turned brown, reducing the efficiency of the system. Some of the lenses were recovered by baking them up to 180°C. In contrast, few sensitive objective lenses can not be baked, rather they were recovered via exposure to infrared radiation with the proper wave length. An overview of the system, the difficulties, and the modifications needed to overcome the radiation effects are presented.  
 
MOPPP033 Diagnostics at PITZ 2.0 Beamline: Status and New Developments 634
 
  • M. Otevřel, A. Donat, H.-J. Grabosch, M. Groß, L. Hakobyan, H.M. Henschel, L. Jachmann, M. Khojoyan, G. Klemz, W. Köhler, G. Koss, G. Kourkafas, M. Krasilnikov, K. Kusoljariyakul, H. Leich, J. Li, M. Mahgoub, D. Malyutin, B. Marchetti, J. Meissner, A. Oppelt, M. Penno, B. Petrosyan, M. Pohl, S. Riemann, M. Sachwitz, B. Schöneich, J. Schultze, A. Shapovalov, F. Stephan, F. Tonisch, G. Vashchenko, L.V. Vu, T. Walter, S. Weisse, R.W. Wenndorff, M. Winde
    DESY Zeuthen, Zeuthen, Germany
  • G. Asova
    INRNE, Sofia, Bulgaria
  • N.I. Brusova, L.V. Kravchuk, V.V. Paramonov
    RAS/INR, Moscow, Russia
  • A. Gonnin, M. Joré, B. Mercier, C. Prevost, A. Variola
    LAL, Orsay, France
  • I.I. Isaev
    MEPhI, Moscow, Russia
  • Ye. Ivanisenko
    IERT, Kharkov, Ukraine
  • D. Richter
    HZB, Berlin, Germany
  • S. Rimjaem
    Chiang Mai University, Chiang Mai, Thailand
  • A.A. Zavadtsev, D.A. Zavadtsev
    Nano, Moscow, Russia
 
  The main aim of the Photo Injector Test Facility at DESY, Zeuthen (PITZ) site is to develop and test an FEL photo injector system capable of producing high charge short electron bunches of lowest possible transverse emittance to allow optimum FEL performance. The last major beamline upgrade realized in the second half of the year 2011 completed the evolution of the PITZ setup ongoing since 2005. The most recent upgrades include the installation of a new RF deflecting cavity - a prerequisite for longitudinal emittance and high resolution slice emittance measurements and installation of a new dispersive section for longitudinal phase space diagnostics of the high energy electron bunches. The paper will give an overview on electron beam diagnostics at PITZ, including the above mentioned upgrades.