Radiant energy – Invisible radiant energy responsive electric signalling – Including a radiant energy responsive gas discharge device
Patent
1997-05-27
1999-09-28
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Including a radiant energy responsive gas discharge device
250374, 250583, 378 37, 378146, 378 98, 382132, G01T 1185
Patent
active
059593024
ABSTRACT:
A high resolution radiographic imaging device for medical or industrial radiography includes at least one ionizing particles detector equipped with at least one gas chamber provided with a window for the lateral or frontal inlet of the illumination beam. A first, a second and a third flat electrode are placed in parallel with one another in order to form a conversion space and a amplification space with the distance separating the second and third electrodes being less than 200 .mu.m and the amplitude ratio of the electrical fields created between the second and third electrodes and the first and second electrodes being greater than 10.
REFERENCES:
patent: 5032729 (1991-07-01), Charpak
patent: 5308987 (1994-05-01), Wuest et al.
patent: 5347131 (1994-09-01), Charpak
patent: 5374131 (1994-12-01), Ito et al.
patent: 5521956 (1996-05-01), Charpak
Hannaher Constantine
Israel Andrew
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