Radiant energy – Invisible radiation responsive nonelectric signalling – Luminescent device
Patent
1989-01-10
1990-12-25
Hannaher, Constantine
Radiant energy
Invisible radiation responsive nonelectric signalling
Luminescent device
2504831, G21K 400
Patent
active
049805614
ABSTRACT:
The invention concerns an input screen scintillator for an X-ray image intensifier tube. This tube comprises light-conductive cesium iodide needles formed on an electrically conductive substrate. According to the invention, each needle is entirely coated with a material such as a metal or a semiconductor which reflects the light travelling within the needles and allows an identical potential level in the coating material as in the substrate towards the inside of said needles. The coating can enhance the efficiency and resolution of image intensifier tubes. The invention has applications in the field of X-ray imagery.
REFERENCES:
patent: 4287230 (1981-09-01), Galves et al.
patent: 4398118 (1983-09-01), Galves et al.
patent: 4803366 (1989-02-01), Vieux et al.
Patent Abstracts of Japan, vol. 8, No. 139 (E-253) [1576], Jun. 28, 1984.
Patent Abstracts of Japan, vol. 8, No. 239 (E-276)[1676], Nov. 2, 1984.
Chareyre Francois
de Groot Paul
Rougeot Henri
Vieux Gerard
"Thomson-CSF"
Eisenberg Jacob M.
Hannaher Constantine
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