Radiation image read-out apparatus, radiation image recording me

Details Radiation image read-out apparatus, radiation image recording me Radiation image read-out apparatus, radiation image recording me

1994-04-04

1994-10-18

Dzierzynski, Paul M.

Radiant energy

Source with recording detector

Using a stimulable phosphor

250581, 250588, G01N 2304, G03G 516

Patent

active

053571185

ABSTRACT:
In a radiation image read-out apparatus, a phosphor sheet (70), represented by the formula Gd.sub.2 O.sub.2 S:Tb.sup.3+, is located facing a stimulable phosphor sheet (10) in such a manner that when it is exposed to x-rays (44) it produces fluorescence (71) having a wavelength that fall within the stimulation wavelength range of the stimulable phosphor. When the stimulable phosphor sheet (10) is exposed to the fluorescence (71), part of the energy stored on the layer of stimulable phosphor during its exposure to the x-rays (44) is released. In this manner, the stimulable phosphor sheet (10) is approximately simultaneously subjected to the operation for recording the radiation image and the operation for slightly erasing the energy store thereon during its exposure to the x-rays (44).

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