Photodetector system for radiation image read-out apparatus

Details Photodetector system for radiation image read-out apparatus Photodetector system for radiation image read-out apparatus

1997-04-25

1998-05-19

Glick, Edward J.

Radiant energy

Source with recording detector

Using a stimulable phosphor

G03B 4202

Patent

active

057539324

ABSTRACT:
A photodetector system for a radiation image read-out apparatus includes a light guide. Light emitted by a stimulable phosphor sheet upon stimulation thereof by stimulating rays enters the light guide from its light inlet end and is guided through the light guide to its light outlet end through repeated total reflection. A stimulating ray cut filter is provided on the light outlet end of the light guide and selectively transmits the light emitted by the stimulable phosphor sheet upon stimulation thereof and a photomultiplier photoelectrically detects the light transmitted through the stimulating ray cut filer. The stimulating ray cut filter is provided with a light-shielding member which covers at least the portion of the outer surface of the filter extending in the longitudinal direction of the filter and prevents external light from entering the filter with a medium having a refractive index lower than that of the filter intervening between the outer surface of the filter and the light-shielding member.

REFERENCES:
patent: 4598200 (1986-07-01), Taniguchi
patent: 4864134 (1989-09-01), Hosoi et al.

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