Author: Knill, C.J.
Paper Title Page
MOPLM15 Design of the ASU Photocathode Lab 132
SUPLH06   use link to see paper's listing under its alternate paper code  
  • C.J. Knill, S.S. Karkare
    Arizona State University, Tempe, USA
  • J.V. Conway, B.M. Dunham, K.W. Smolenski
    Xelera Research LLC, Ithaca, New York, USA
  • H.A. Padmore
    LBNL, Berkeley, California, USA
  Funding: This work was supported by the U.S. National Science Foundation under Award PHY-1549132, the Center for Bright Beams.
Recent investigations have shown that it is possible to obtain an order of magnitude smaller intrinsic emittance from photocathodes by precise atomic scale control of the surface, using an appropriate electronic band structure of single crystal cathodes and cryogenically cooling the cathode. Investigating the performance of such cathodes requires atomic scale surface diagnostic techniques connected in ultra-high vacuum (UHV) to the epitaxial thin film growth and surface preparation systems and photo-emission and photocathode diagnostic techniques. Here we report the capabilities and design of the laboratory being built at the Arizona State University for this purpose. The lab houses a 200 kV DC gun with a cryogenically cooled cathode along with a beam diagnostics and ultra fast electron diffraction beamline. The cathode of the gun can be transported in UHV to a suite of UHV growth chambers and surface and photoemission diagnostic techniques.
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About • paper received ※ 26 August 2019       paper accepted ※ 04 September 2019       issue date ※ 08 October 2019  
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