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Wabnitz, H.

Paper Title Page
TUPC090 Ionisation Profile Monitor to Determine Spatial and Angular Stability of FEL Radiation of FLASH 1266
 
  • M. Sachwitz, A. Hofmann, S. Pauliuk
    DESY Zeuthen, Zeuthen
  • K. I. Tiedtke, H. Wabnitz
    DESY, Hamburg
 
  An Ionization Profile Monitor (IPM) is used to detect lateral position changes of an FEL beam. By its help, beam position stability can be measured via the parasitic ionization of the residual gas in the beamline. We give an outline on operation, calibration and maintenance of the two IPM that have been developed at DESY Zeuthen and that have recently been built into FLASH at DESY Hamburg.