Photomultiplier tube with dynode array having venetian-blind str

Details Photomultiplier tube with dynode array having venetian-blind str Photomultiplier tube with dynode array having venetian-blind str

1990-11-08

1993-01-19

O'Shea, Sandra L.

Electric lamp and discharge devices

Photosensitive

Photomultiplier

313103R, 313105R, H01J 4318, H01J 4322

Patent

active

051809435

ABSTRACT:
A venetian-blind type of photomultiplier tube comprising a photocathode for converting an incident light into photoelectrons, a venetian-blind type of dynode array comprising plural dynode rows arranged in a first direction, each of which comprises plural dynode elements arranged at a constant pitch in a second direction, each dynode element having a plate inclined to the first direction for emitting the secondary electrons, an anode array comprising plural anodes arranged in the second direction for collecting the secondary electrons emitted from the dynode array and outputting an amplified electrical signal corresponding to the light, and one or more electron converging electrodes for converging at least one stream of the photoelectrons and the secondary electrons and concentrically directing the converged stream to a predetermined portion of each of the dynode elements. The electron-flight control member may have various patterns such as a grid, strip, mesh and multi-aperture structures.

REFERENCES:
patent: 2871368 (1959-01-01), Bain
patent: 3265916 (1966-08-01), Vestal
patent: 3688145 (1972-08-01), Coles
patent: 4117366 (1978-09-01), Davis
patent: 4937506 (1990-06-01), Kimura et al.
Journal of Physics E. Scientific Instruments, vol. 5, No. 10, 1972, pp. 964-966, A. F. J. Van Raan et al., "An experimental study of the response of a venetian blind type multiplier".

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