SIMULATION OF THE LONGITUDINAL PHASE SPACE MEASUREMENTS WITH THE TRANSVERSE DEFLECTING STRUCTURE AT PITZ

The main goal of the Photo Injector Test facility at DESY, Zeuthen site, (PITZ) is the development, optimization and detailed characterization of electron sources for short wavelength Free Electron Lasers (FELs) like FLASH and the European XFEL. For a successful operation of such type of FELs the injector must produce high quality electron bunches, short enough in duration with high charge and small transverse emittance value. Installation of the Transverse Deflecting Structure (TDS) at PITZ will provide the possibility for detailed characterization of the bunch temporal profile, bunch transverse slice emittance and longitudinal phase space. The TDS cavity is currently installed at PITZ beamline, and commissioning of the whole TDS system is expected in the spring-summer 2012. In the first part of the paper the PITZ2.0 setup is shortly described. The basic principles of the TDS deflector are introduced. The temporal resolution is discussed. Systematic limitations are estimated. Simulations of TDS measurements applied for PITZ bunch parameters are presented.