Title of article
Laboratory production of efficient alkali-antimonide photocathodes
Author/Authors
Shefer، نويسنده , , E. and Breskin، نويسنده , , A. and Buzulutskov، نويسنده , , A. and Chechik، نويسنده , , R. and Klin، نويسنده , , M. and Prager، نويسنده , , M.، نويسنده ,
Pages
6
From page
383
To page
388
Abstract
An experimental setup and procedures for the preparation of high-quality reflective and semitransparent alkali-antimonide photocathodes in laboratory conditions is described. Absolute quantum efficiency curves for KCsSb and Cs3Sb photocathodes are presented in the spectral range of 250–550 nm; their average quantum efficiency values at 312 nm are 32% and 15%, respectively. The photocathodes are stable in vacuum and in high-purity methane over a few days period. The system also permits photocathode coating with protective films.
Keywords
Alkali-antimonide , Photon detectors and photomultipliers , Visible photocathodes
Journal title
Astroparticle Physics
Record number
2005588
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