Fast photomultiplier tube having a high collection homogeneity

Details Fast photomultiplier tube having a high collection homogeneity Fast photomultiplier tube having a high collection homogeneity

1990-03-22

1991-08-27

Yusko, Donald J.

Electric lamp and discharge devices

Photosensitive

Photomultiplier

313528, 313536, 313535, 313103CM, H01J 4320

Patent

active

050436287

ABSTRACT:
A photomultiplier tube comprising a photocathode (10), focusing electrodes (12, 12') and a fast multiplier structure (20) having a large input surface relative to the photocathode and comprising at least one input dynode (21). According to the invention, said photomultiplier tube comprises, between the photocathode (10) and said focusing multiplier structure (20), a first multiplier stage (30) comprising, in succession and viewed from the assembly consisting of the photocathode (10) and the focusing electrodes (12, 12'), a grid (31), a first multiplier dynode (32) of the apertured-plate type, and an extracting grid (33) having the same pattern as said first multiplier dynode (32), the output of the extracting grid (33) being coupled to said input dynode (21) of the multiplier pattern by means of a focusing electrode (40).

REFERENCES:
patent: 4431943 (1984-02-01), Faulkner et al.
patent: 4645918 (1987-02-01), Tsuchiya
patent: 4649314 (1987-03-01), Eschard
patent: 4980604 (1990-12-01), L'Hermite

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