Photomultiplier tube comprising a large first dynode and a stack

Details Photomultiplier tube comprising a large first dynode and a stack Photomultiplier tube comprising a large first dynode and a stack

1989-12-26

1991-03-12

Yusko, Donald J.

Electric lamp and discharge devices

Photosensitive

Photomultiplier

313103R, 313536, 313103CM, 313104, 313105CM, 313528, 313532, 313534, H01J 4318

Patent

active

049995405

ABSTRACT:
A photomultiplier tube (10) for the use in high collecting power is described having a photocathode (20), a first dynode (30) and a stackable-dynode multiplier device (40). According to the invention, the first dynode (30) is constituted by a sheet which extends parallel to the photocathode (20) and is provided with a feedthrough aperture (31), an extracting grid (32) being arranged between the photocathode (20) and the sheet, and the stackable-dynode multiplier device (40) is positioned opposite the aperture (30) in such a manner as to collect the secondary electrons (50) emitted by the first dynode (30) and passing through the feedthrough aperture (31).

REFERENCES:
patent: 3119037 (1964-01-01), Stanley
patent: 4184098 (1980-01-01), Morales
patent: 4623785 (1986-11-01), L'hermite
patent: 4649314 (1987-03-01), Eschard

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