Title of article
The protection of KCsSb photocathodes with CsBr films
Author/Authors
Buzulutskov، نويسنده , , A. and Shefer، نويسنده , , E. and Breskin، نويسنده , , A. and Chechik، نويسنده , , R. W. Prager، نويسنده , , M.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1997
Pages
4
From page
173
To page
176
Abstract
We report on photoemission properties of visible KCsSb 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 KCsSb 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
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
1997
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2176785
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