• Title of article

    The protection of KCsSb photocathodes with CsBr films

  • Author/Authors

    A. and Buzulutskov، نويسنده , , A. and Shefer، نويسنده , , E. and Breskin، نويسنده , , A. and Chechik، نويسنده , , R. W. Prager، نويسنده , , M.، نويسنده ,

  • Pages
    4
  • From page
    173
  • To page
    176
  • Abstract
    We report on photoemission properties of visible KCsSb reflective photocathodes coated with thin CsBr protective films. We present the absolute quantum efficiency and its stability under prolonged contact with oxygen. It is found that KCsSb photocathodes coated with 280 Å thick CsBr films have 5% quantum efficiency at 312 nm and can withstand an exposure to 150 Torr of oxygen for half an hour. We discuss the possible role of good lattice constants matching between the photocathodes and the protecting film.
  • Journal title
    Astroparticle Physics
  • Record number

    2003141

    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=2003141