Remote Controlled IR-Diagnostic Station for the FEL at Rossendorf


Remote Controlled IR-Diagnostic Station for the FEL at Rossendorf

Seidel, W.; Friebel, S.; Jainsch, R.; Justus, M.; Leege, K.-W.; Pröhl, D.; Stehr, D.; Weigelt, H.; Winnerl, S.; Wohlfarth, D.

The remote controlled diagnostic station delivers a small amount of the IR radiation by means of a system of relocatable mirrors and beam splitters to the spectrometer and to various power detectors working in different power ranges. Furthermore, a long wavelength MCT detector is integrated in the diagnostic station for gain and loss measurement in the whole wavelength range of the U27-FEL. The average radiation power available for the users can be reduced by a remote controlled attenuator. To characterize the optical micropulse duration we have built a non-collinear background-free autocorrelator as a part of the diagnostic station. By using a CdTe single-crystal for second-harmonic generation a broad wavelength coverage is obtained. Certain experiments require high pulse energies but moderate or low average power. For such experiments the repetition rate of the Rossendorf FEL can be reduced from 13 MHz to 1 kHz, in the future also to 1 Hz, by a semiconductor plasma switch excited with a synchronized Nd:YAG amplifier. This system is under commissioning and we will report on first results.

  • Poster
    28th Int. Free Electron Laser Conference, 27.08.-01.09.2006, Berlin/Rossendorf, Deutschland
  • Contribution to proceedings
    28th Int. Free Electron Laser Conference, 27.08.-01.09.2006, Berlin/Dresden, Deutschland
    Remote Controlled IR-Diagnostic Station for the FEL at Rossendorf: JACoW, FEL06

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Publ.-Id: 9229