Photomultiplier

Details Photomultiplier Photomultiplier

2006-01-24

2006-01-24

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

Photosensitive

Photomultiplier

C313S523000, C313S532000, C313S534000, C313S1030CM, C250S207000

Reexamination Certificate

active

06989632

ABSTRACT:
A photomultiplier has a dynode cascade arranged radially rather than axially. Effective dynode area thereby can increase through the cascade, leading to improved linearity of response, and the axial length of the device can be reduced. The dynodes are sections of a set of toroids and may be formed as a layer of secondary emissive material such as caesiated antimony on a monolithic sintered cast or otherwise moulded or machined block of insulating material. This novel form of dynode construction can also be used in other photomultiplier or electron multiplier configurations.

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S. Inaba: A Trial Construction Of A Secondary Electron Multiplier With Ring-Shaped Dynodes; Scientific Instruments, 60 (4), Apr. 1989; pp. 805 and 806.

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