Title of article
Effect of light flash on photocathodes
Author/Authors
Semertzidis، نويسنده , , Yannis K and Farley، نويسنده , , Francis J.M، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1997
Pages
6
From page
7
To page
12
Abstract
We have measured the discharge of the bi-alkali (high resistivity) photocathode of the 2 inch diameter Hamamatsu photomultiplier type R1828-01 when its surface is uniformly illuminated with 5 × 108 photons. The gain of the tube (when operated at − 1800 V) is reduced by 7% immediately after the flash, and recovers with a time constant of about 50 μs. Time delays are also affected. Photomultipliers with multi-alkali (low resistivity) photocathodes do not show these effects.
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
2176031
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