Photomultiplier including an electron multiplier for cascade-mul

Details Photomultiplier including an electron multiplier for cascade-mul Photomultiplier including an electron multiplier for cascade-mul

1994-04-28

1996-02-13

Yusko, Donald J.

Electric lamp and discharge devices

Photosensitive

Photomultiplier

313103R, 313105R, 313103CM, 313105CM, 313532, 313535, H01J 4322

Patent

active

054913802

ABSTRACT:
A photomultiplier which can be easily made compact has a dynode unit having a plurality of dynode plates stacked in an electron incident direction in a vacuum container fabricated by a housing and a base member integrally formed with the housing. Each dynode plate is constituted by welding at least two plates overlapping each other. The welding positions do not overlap each other in the stacking direction of the dynode plates. With this structure, field discharge at the welding portions between the dynode plates can be prevented to reduce noise.

REFERENCES:
patent: 4649314 (1987-03-01), Eschard
patent: 4963113 (1990-10-01), Muramatsu
patent: 5077504 (1991-12-01), Helvy
patent: 5126629 (1992-06-01), Chopy

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