Title of article
Performance of a photomultiplier at liquid-helium temperature
Author/Authors
Meyer، نويسنده , , H.O.، نويسنده ,
Pages
6
From page
437
To page
442
Abstract
The performance of a Hamamatsu R7725-mod photomultiplier has been studied at liquid-helium temperature. When cooling from 300 to 8 K, the quantum efficiency decreases by about 10% and the gain by about 30%, afterpulses become less probable, but the dark rate increases, down to the lowest temperature measured. There is no indication against using a photomultiplier at liquid-helium temperature.
Keywords
Photomultiplier , liquid helium , Photon detector
Journal title
Astroparticle Physics
Record number
1991861
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