Author: Sinn, H.
Paper Title Page
TUPC121 Development of MCP Based Photon Detectors for the European XFEL 1299
 
  • E. Syresin, M.N. Kapishin
    JINR, Dubna, Moscow Region, Russia
  • O.I. Brovko, A.V. Shabunov
    JINR/VBLHEP, Moscow, Russia
  • W. Freund, J. Grünert, H. Sinn
    European XFEL GmbH, Hamburg, Germany
  • M.V. Yurkov
    DESY, Hamburg, Germany
 
  To provide successful operation of SASE XFEL the radiation detectors should operate in wide dynamic range from the level of spontaneous emission to the saturation level, in wide wavelength range from 0.05 nm to 0.16 nm for SASE1 and SASE2 and from 0.4 nm to 4.4 nm for SASE3. High relative accuracy of measurements is crucial for detection of a signature of lasing, tuning of amplification process, and characterization of statistical properties of the radiation. The XFEL radiation detector based on micro-channel plates (MCP) meets these requirements. Two types of the photon detector are used for measurements of the pulse radiation energy and the image of the photon beam. The dynamic range of photon pulse energies is between 1 nJ and 10 mJ. This applies to spontaneous and FEL radiation. The relative accuracy of pulse energy measurements is better than 1%. The visualization of a single bunch in a train, or average image over the full train will perform by the MCP imager at a spatial resolution of 30 μm.