Luminescent screen and image-converter tubes utilizing such a sc

Details Luminescent screen and image-converter tubes utilizing such a sc Luminescent screen and image-converter tubes utilizing such a sc

1975-01-23

1977-05-10

Smith, Alfred E.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

250483, 250213VT, 250361R, H01J 3150

Patent

active

040230392

ABSTRACT:
In order to avoid losses in definition and contrast which are observed in image-converter tubes as a consequence of the light scatter taking place within the body of the scintillators of the input screens of these tubes, when said scintillators occur in the form of a continuous layer of material, the present invention provides for the formation within a layer of microscopic channels which are transversely disposed, the channels being formed by covering the substrate, prior to the deposition of the scintillator thereon, with a layer of a granular material, preferably glass balls. Application to radiology and scintillography.

REFERENCES:
patent: 2495697 (1950-01-01), Chilowsky
patent: 2650310 (1953-08-01), White
patent: 3041456 (1962-06-01), Macleod
patent: 3253146 (1966-05-01), De Vries
patent: 3330981 (1967-07-01), Aia
patent: 3435222 (1969-03-01), Hotine
patent: 3829700 (1974-08-01), Buchanan et al.
patent: 3838273 (1974-09-01), Cusano

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