Venetian blind type secondary electron multiplier for secondary

Details Venetian blind type secondary electron multiplier for secondary Venetian blind type secondary electron multiplier for secondary

1989-01-24

1990-08-21

Wieder, Kenneth

Electric lamp and discharge devices

Photosensitive

Photomultiplier

313534, 313533, 313104, 313105R, H01J 4322

Patent

active

049509519

ABSTRACT:
A secondary electron multiplier having a Venetian blind dynode structure for use in a photomultiplier tube or the like. The dynode structure includes first and second dynodes being vertically disposed transverse to each other in that the geometrically transparent part of the first dynode is aligned with a portion of the geometrically opaque part of the second dynode corresponding to a width dimension defined from the lower end of the second dynode, and the voltages applied to the dynodes are specially configured to provide a sufficient energy to the dynodes for secondary electron mulitplication.

REFERENCES:
patent: 4184098 (1980-01-01), Morales

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