Title of article :
Progress in the production of CsI and diamond thin film photocathodes
Author/Authors :
Nitti، نويسنده , , M.A. and Nappi، نويسنده , , E. and Valentini، نويسنده , , A. and Bénédic، نويسنده , , F. and Bruno، نويسنده , , P. and Cicala، نويسنده , , G.، نويسنده ,
Abstract :
The comparison between the quantum efficiency of photocathodes coated with thin CsI films obtained by thermal evaporation and, for the first time, by Ar ion-beam sputtering is reported. The sensitivity of photocathodes has been found to be strongly dependent on the morphology and roughness of the evaporated and sputtered CsI films. The effect of surface roughness on four different substrates has been investigated and is discussed.
inary measurement results on the photoemissivity of diamond films are also given.
Keywords :
RICH detectors , Photocathodes , Caesium iodide , diamond , Thermal evaporation , Ion-beam sputtering , Microwave plasma-assisted chemical vapour deposition
Journal title :
Astroparticle Physics
