Planar radiation detector using radiation-induced-charge...

Details Planar radiation detector using radiation-induced-charge... Planar radiation detector using radiation-induced-charge...

2008-03-11

2010-06-29

Porta, David P (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

Reexamination Certificate

active

07745796

ABSTRACT:
In a planar radiation detector having a substrate; a charge-collection electrode; a radiation-induced-charge conversion film formed mainly of amorphous selenium; and an upper electrode which transmits radiation, or in a planar radiation detector having a substrate; a charge-collection electrode; a light-induced-charge conversion film which is formed mainly of amorphous selenium and generates electric charge when the light-induced-charge conversion film is irradiated with visible light which has passed through an upper electrode; the upper electrode which transmits the visible light emitted from a fluorescent layer; and the fluorescent layer formed of a fluorescent material which converts a radiation carrying image information into the visible light, the radiation-induced-charge conversion film or the light-induced-charge conversion film is formed of amorphous selenium or amorphous selenium alloy and has a residual oxygen concentration of 35 ppm or lower.

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