Photomultiplier

Details Photomultiplier Photomultiplier

1992-10-23

1994-11-08

Yusko, Donald J.

Electric lamp and discharge devices

Photosensitive

Photomultiplier

313534, 313537, 313103R, 313105R, H01J 4320

Patent

active

053630149

ABSTRACT:
A photomultiplier for receiving incident light on a photocathode, and cascade-multiplying electrodes emitted from the photocathode by a secondary electronic effect of a plurality of dynodes, whereby the incident light is detected. The photomultiplier includes a slowing-down electrode for decelerating those of secondary electrons emitted from a dynode on the first stage to a dynode on the second stage which have a higher speed. Because of the slowing-down electrode the secondary electrons having a higher speed are selectively decelerated, whereby a transit time spread of the secondary electrons emitted from parts of the first stage-dynode to the second stage-dynode is relatively decreased.

REFERENCES:
patent: 2868994 (1959-01-01), Anderson
patent: 2908840 (1959-10-01), Anderson
patent: 3444414 (1909-05-01), Betoule et al.
patent: 4431943 (1984-02-01), Faulkner et al.
patent: 4855642 (1989-08-01), Helvy et al.

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