Plasma spraying of conversion screens

Details Plasma spraying of conversion screens Plasma spraying of conversion screens

1982-06-07

1984-10-02

Newsome, John H.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

313527, 427 34, 427423, 427 64, H01J 3150

Patent

active

044750323

ABSTRACT:
A conversion screen such as is used for X-ray image intensifier screens, X-ray image intensifier tubes, cathode-ray tubes, image pick-up tubes, X-ray electrography, fluorescent lamps and the like is formed by the deposition of a layer of conversion material on a carrier (19) via a melting space (7) which is preferably heated by means of a plasma arc. This method of deposition offers very robust screens with a high density and also allows the filling of recesses in a carrier with conversion material, so that structured conversion screens can be formed.

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patent: 3776754 (1973-12-01), Levinos
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patent: 4220890 (1980-09-01), Beekmans
patent: 4225785 (1982-09-01), Ducos et al.
patent: 4327120 (1982-04-01), Siemers et al.
patent: 4327155 (1982-04-01), Hanneman

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