Position-sensitive director

Details Position-sensitive director Position-sensitive director

1988-02-11

1990-06-26

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250213R, 250374, G01T 1185

Patent

active

049374559

ABSTRACT:
A position-sensitive detector for electronically imaging objects emitting low-intensity light radiation, comprises a photocathode means for converting incident low-intensity light radiation into electrons; electron acceleration means disposed in series with the photocathode means for accelerating the electrons generated by the photocathode means; transducer means disposed in series with the acceleration means for converting the accelerated electrons into ultra-violet radiation; and a multi-wire chamber means disposed in series with the transducer means for providing readout of the position of the ultra-violet radiation.
A detector having a solid scintillator for electronically imaging objects emitting low-intensity x-ray or gamma ray or the like is also disclosed.

REFERENCES:
patent: 4142101 (1979-02-01), Yin
patent: 4382180 (1983-03-01), Woolgar
patent: 4429228 (1984-01-01), Anderson
patent: 4454422 (1984-06-01), Persyk
D. F. Anderson et al., Nuclear Instruments And Methods 217, Coupling of a BaF.sub.2 Scintillator to a Time Photocathode and a Low-Pressure Wire Chamber, pp. 217-223, (1983).
The Review of Scientific Instruments, vol. 29, No. 1, 1958, pp. 27-33, Hal O. Anger, Scintillation Camera.
Nuclear Instruments and Methods 196, pp. 63-67, 1982, William H.-M. Ku et al., Properties of an Imaging Gas Scintillation Preparation Counter.
Technik des Messens Radioaktiver Strahlung, pp. 178-181, 1963, H. C. Paul Gorlich.

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