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Szalowski, K.

Paper Title Page
THPLS092 Nb-Pb Superconducting RF-Gun 3493
  • J.S. Sekutowicz, J.I. Iversen, D. Klinke, D. Kostin, W.-D. Möller
    DESY, Hamburg
  • I. Ben-Zvi, A. Burrill, T. Rao, J. Smedley
    BNL, Upton, Long Island, New York
  • M. Ferrario
    INFN/LNF, Frascati (Roma)
  • P. Kneisel
    Jefferson Lab, Newport News, Virginia
  • K. Ko, L. Xiao
    SLAC, Menlo Park, California
  • J. Langner, P. Strzyzewski
    The Andrzej Soltan Institute for Nuclear Studies, Centre Swierk, Swierk/Otwock
  • R.S. Lefferts, A.R. Lipski
    SBUNSL, Stony Brook, New York
  • J.B. Rosenzweig
    UCLA, Los Angeles, California
  • K. Szalowski
    University of Lodz, Lodz
  We report on the status of an electron RF-gun made of two superconductors: niobium and lead. The presented design combines the advantages of the RF performance of bulk niobium superconducting cavities and the reasonably high quantum efficiency of lead, as compared to other superconducting metals. The concept, mentioned in a previous paper, follows the attractive approach of all niobium superconducting RF-gun as it has been proposed by the BNL group. Measured values of quantum efficiency for lead at various photon energies, analysis of recombination time of photon-broken Cooper pairs for lead and niobium, and preliminary cold test results are discussed in this paper.