Radiant energy – Invisible radiant energy responsive electric signalling – Including a radiant energy responsive gas discharge device
Patent
1989-10-31
1991-03-12
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Including a radiant energy responsive gas discharge device
25036302, 250367, 250389, G01T 1161
Patent
active
049995006
ABSTRACT:
Apparatus for radiographic imaging including a multistage avalanche chamber receiving radiation from a multiplicity of radiation point sources on a sample and providing a multiple photon output indicative of the path of the emitted radiation through the avalanche chamber, image intensification apparatus receiving the photon output of the avalanche chamber, a camera receiving an output from the image intensification apparatus; image processing apparatus for receiving the camera output and carrying out a vector analysis on the information contained in the camera output in order to determine the location of the radiation emitting point source on the sample.
REFERENCES:
patent: 4622467 (1986-11-01), Britten et al.
Breskin et al., "A Highly Efficient Low-Pressure UV-Rich Detector with Optical Avalanche Recording", presented at the London Conference on Position Sensitive Detectors, London, 7-11 Sep. 1987, pp. 1-8.
Borkowski et al., "Proportional Counter Photon Camera", IEEE Trans. Nucl. Sci (USA), vol. NS19, No. 3, Jun. 72, pp. 161-168.
Sauvage et al., "A Systematic Study of the Emission of Light from Electron Avalanches in Low-Pressure TEA and TMAE Gas Mixtures", Nuclear Instruments and Methods in Physics Res. (1989), pp. 351-363.
Breskin Amos
Chechik Rachel
Eisenberg Jacob M.
Hannaher Constantine
Yeda Research & Development Co. Ltd.
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