X-ray image intensifier and method of manufacturing the same

Details X-ray image intensifier and method of manufacturing the same X-ray image intensifier and method of manufacturing the same

1989-02-27

1990-06-19

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

313527, H01J 3150

Patent

active

049356178

ABSTRACT:
An X-ray image intensifier comprising a vacuum envelope and an input screen having an improved sensitivity and including a substrate disposed on the X-ray input side of the vacuum envelope, a phosphor layer formed on the substrate and a photocathode formed on the phosphor layer. The phosphor layer consists of columnar crystals extending in a direction perpendicular to the substrate surface. The tip portions of the columnar crystals are deformed to close the upper portion of the clearances formed between the columnar crystals.

REFERENCES:
patent: 3089956 (1963-05-01), Hushley
patent: 3783298 (1974-01-01), Houston
patent: 4740683 (1988-04-01), Noji et al.

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