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Abo-Bakr, M.

Paper Title Page
TUPMN012 STARS - A Two-Stage High-Gain Harmonic Generation FEL Demonstrator 938
  • T. Kamps, M. Abo-Bakr, W. Anders, J. Bahrdt, P. Budz, K. B. Buerkmann-Gehrlein, O. Dressler, H. A. Duerr, V. Duerr, W. Eberhardt, S. Eisebitt, J. Feikes, R. Follath, A. Gaupp, R. Goergen, K. Goldammer, S. C. Hessler, K. Holldack, E. Jaeschke, S. Klauke, J. Knobloch, O. Kugeler, B. C. Kuske, P. Kuske, A. Meseck, R. Mitzner, R. Mueller, M. Neeb, A. Neumann, K. Ott, D. Pfluckhahn, T. Quast, M. Scheer, Th. Schroeter, M. Schuster, F. Senf, G. Wuestefeld
    BESSY GmbH, Berlin
  • D. Kramer
    GSI, Darmstadt
  • F. Marhauser
    JLAB, Newport News, Virginia
  Funding: Bundesministerium fur Bildung und Forschung and the Land Berlin

BESSY is proposing a demonstration facility, called STARS, for a two-stage high-gain harmonic generation free electron laser (HGHG FEL). STARS is planned for lasing in the wavelength range 40 to 70 nm, requiring a beam energy of 325 MeV. The facility consists of a normal conducting gun, three superconducting TESLA-type acceleration modules modified for CW operation, a single stage bunch compressor and finally a two-stage HGHG cascaded FEL. This paper describes the faciliy layout and the rationale behind the operation parameters.

TUPMN015 First Commissioning Results of the Metrology Light Source 947
  • J. Feikes, M. Abo-Bakr, T. Birke, J. Borninkhof, P. Budz, K. B. Buerkmann-Gehrlein, R. Daum, O. Dressler, V. Duerr, F. Falkenstern, H. G. Glass, H. G. Hoberg, J. Kolbe, J. Kuszynski, R. Lange, I. Mueller, R. Muller, J. Rahn, G. Schindhelm, T. Schneegans, Th. Schroeter, D. Schueler, E. Weihreter, G. Wuestefeld
    BESSY GmbH, Berlin
  • G. Brandt, R. Fliegauf, A. Hoehl, R. Klein, R. Muller, R. Thornagel, G. Ulm
    PTB, Berlin
  Funding: Physikalisch-Technische Bundesanstalt, Abbestr. 2 - 12, 10587 Berlin, Germany

The Physikalisch-Technische Bundesanstalt (PTB), the German national metrology institute, has built an electron storage ring in close cooperation with BESSY for energies between 200 MeV and 600 MeV. This storage ring, named Metrology Light Source (MLS), will mainly be used for radiometry and can be operated as a primary source standard. The spectral range of the MLS is optimized for UV, EUV and also for Terahertz radiation. Commissioning is planed for May 2007. First MLS commissioning results will be reported.