Title of article
CsBr and CsI UV photocathodes: new results on quantum efficiency and aging
Author/Authors
Singh، نويسنده , , B.K and Shefer، نويسنده , , E and Breskin، نويسنده , , A and Chechik، نويسنده , , R and Avraham، نويسنده , , N، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
15
From page
364
To page
378
Abstract
We report on the photoemission properties of 300 إ thick transmissive- and 5000 إ thick reflective UV-sensitive CsBr photocathodes. Following post-evaporation heat treatment at 70°C the absolute quantum efficiency is 35% at 150 nm, with a red boundary cut-off at about 195 nm. Extensive aging studies of CsBr and CsI photocathodes, under high photon flux and under ion bombardment in gas avalanche multiplication mode, were carried out for the first time without exposure to air. The results are compared with the previously published data on CsI aging and the methodology of the aging tests is discussed in details.
Keywords
CsBr photocathodes , UV-photocathodes , CsBr photocathode aging , Photon detectors , CsI photocathode aging
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
2000
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2187972
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