Input screen for an image intensifier tube and a method of makin

Details Input screen for an image intensifier tube and a method of makin Input screen for an image intensifier tube and a method of makin

1982-12-03

1985-03-12

Smith, Alfred E.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

427 65, 427 70, G01T 116

Patent

active

045047383

ABSTRACT:
An input screen and method of forming one for an image intensifier tube including a substrate in which a plurality of crystal grains of aluminum or aluminum alloy are formed in a plane with the crystal grains having non-directional shapes in the plane. The crystal grains are formed by heating in a vacuum or non-oxidizing atmosphere at a temperature between 450.degree. C. and 650.degree. C. The oxidized layer is next removed by an etchant, and a phosphor layer formed on the crystal grains by vapor-deposit.

REFERENCES:
patent: 3825736 (1974-07-01), Osborne
patent: 4195230 (1980-03-01), Ataka et al.
Stevels et al., "Vapour Deposited CsI:Na Layers II . . . ," Philips Research Repts, vol. 29, 1974, pp. 353-362.
Bates, "Scintillation Processes . . . ," Adv in Electronics and Electron Physics 28A, 1969, pp. 451-459.

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