Process for forming a high resolution X-ray intensifying screen

Details Process for forming a high resolution X-ray intensifying screen Process for forming a high resolution X-ray intensifying screen

1979-10-31

1981-04-21

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

427 65, 250483, H01J 162

Patent

active

042630614

ABSTRACT:
A process is disclosed whereby there is formed a high resolution screen in which laterally directed back reflections of light produced within a luminous layer, which reflections have heretofore been generally laterally directed so as to result in decreased resolution, are minimized by the inclusion of an antireflecting surface at the back side of the luminous layer. In the present process, the antireflecting surface is formed by subjecting a substantially planar aluminum surface on a support layer to a steam treatment to convert the aluminum surface to a microstructured surface of boehmite, a hydrated aluminum oxide, having a plurality of randomly positioned leaflets extending from the surface.

REFERENCES:
patent: 3783297 (1974-01-01), Houston
patent: 3917950 (1975-11-01), Carlson
patent: 4011454 (1977-03-01), Lubowski et al.
patent: 4013465 (1977-03-01), Clapham et al.
patent: 4090085 (1978-05-01), Shimiya et al.
patent: 4148077 (1980-01-01), Washida
patent: 4190321 (1980-02-01), Dorer

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