X-Ray image intensifier

Details X-Ray image intensifier X-Ray image intensifier

1981-04-29

1983-08-09

Smith, John D.

Electric lamp and discharge devices

Photosensitive

Having phosphor screen

250213R, 2504831, 313388, 427 65, H01J 162

Patent

active

043981186

ABSTRACT:
In an X-ray image intensifier consisting of a scintillator screen associated with a photocathode, an electron-optical system and an output screen on which a strong visible image appears, resolution is improved by providing the scintillator screen, formed by a layer of cesium iodide doped with sodium deposited onto the substrate, a structure of needles approximately micrometers in diameter which are kept in the form of separate needles during the subsequent heat treatment by virtue of the presence of silicon oxide in the cesium iodide lattice.

REFERENCES:
patent: Re29956 (1979-03-01), Lightenberg et al.
patent: 3147226 (1964-09-01), Jonck
patent: 3213308 (1965-10-01), Feibelman
patent: 3296448 (1967-01-01), Swinehart et al.
patent: 3769059 (1973-10-01), Driard et al.
patent: 3795531 (1974-03-01), Spicer
patent: 3825787 (1974-07-01), Doolittle
patent: 3855035 (1974-12-01), Bates et al.
patent: 4069355 (1978-01-01), Lubowski et al.
patent: 4100445 (1978-07-01), Suffredini et al.

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