Structured scintillation screens

Details Structured scintillation screens Structured scintillation screens

1994-08-08

1996-05-21

Hannaher, Constantine

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

25037011, 2504871, G01N 23083, G01N 2164, G01T 124

Patent

active

055192270

ABSTRACT:
A method for fabricating x-ray-detecting structured screens using laser-based micro-machining techniques results in devices having improved spatial resolution. In one case, each pixel of the screen contains an optically active scintillating material surrounded with a optically inactive material having a relatively lower refractive index; following absorption of light, each pixel channels x-ray-induced phosphorescence to a small region of a detector. Alternatively, the optically active material can be a photoconducting material, such as selenium, and the surrounding optically inactive material is chosen to have a relatively high resistivity.

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