Photomultiplier

Electric lamp and discharge devices – Photosensitive – Photomultiplier

Reexamination Certificate

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Details

C313S532000, C313S533000, C313S534000, C313S536000

Reexamination Certificate

active

07990064

ABSTRACT:
The present invention relates to a photomultiplier that realizes significant improvement of response time properties with a structure enabling mass production. In the sealed container, a photocathode, a dynode unit including at least one dynode set, and preferably dynode sets of two series, a focusing electrode unit arranged between the photocathode and the dynode unit are housed. The focusing electrode unit is set to the same potential as the second dynode arranged at a position where secondary electrons from said first dynode, which emits secondary electrons in response to incidence of photoelectrons, arrive, and is provided with partitioning plates partitioning the second dynode into two in a longitudinal direction of the second dynode.

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