Composite scintillator screen
OwnerHerbert D. Zemaninventor
Life of this patent
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Abstract
A scintillator screen for an X-ray system includes a substrate of low-Z material and bodies of a high-Z material embedded within the substrate. By preselecting the size of the bodies embedded within the substrate, the spacial separation of the bodies and the thickness of the screen, the sensitivity of the screen to X-rays within a predetermined energy range can be predicted.
Claims17
A scintillator screen for an X-ray system comprising:
- a substrate of low-Z, non-scintillating material;
- and
- bodies associated with the substrate including a high-Z, scintillating material adapted to scintillate upon exposure to photoelectrons produced by X-rays passing through the high-Z material of the bodies, the bodies being of such size and being spatially separated from one another by the low-Z material of the substrate to provide the screen with a predetermined sensitivity to X-rays within a preselected energy range.
A scintillator screen for an X-ray system comprising:
- a substrate of low-Z material;
- and
- bodies comprised of fibers associated with the substrate including a high-Z material, at least one of the materials of the substrate and bodies adapted to scintillate upon exposure to photoelectrons produced by X-rays passing through the high-Z material of the bodies, the bodies being of such size and being spatially separated from one another by the low-Z material of the substrate to provide the screen with a predetermined sensitivity to X-rays within a preselected energy range.
A scintillator screen for an X-ray system comprising:
- a substrate including lithium fluoride;
- and
- bodies associated with the substrate including barium fluoride, the bodies being of such size and being spatially separated from one another by the lithium fluoride of the substrate to provide the screen with a predetermined sensitivity to X-rays within a preselected energy range.
A scintillator screen for an X-ray system comprising:
- a substrate including anthracene;
- and
- bodies associated with the substrate including heavy flint glass, the bodies being of such size and being spatially separated from one another by the anthracene of the substrate to provide the screen with a predetermined sensitivity to X-rays within a preselected energy range.
A scintillator screen for an X-ray system comprising:
- a substrate of low-Z material;
- and
- bodies associated with the substrate including a quantity of leaded plastic coated with a low-Z material, at least one of the materials of the substrate and bodies adapted to scintillate upon exposure to photoelectrons produced by X-rays passing through the bodies, and the bodies are of such size and are spatially separated from one another by the low-Z material of the substrate to provide the screen with a predetermined sensitivity to X-rays within a preselected energy range.
A scintillator screen for an X-ray system comprising:
- a substrate including lithium fluoride and
- bodies associated with the substrate including barium fluoride, the bodies having a thickness of about 10 microns as measured in a direction therethrough which corresponds generally to the direction of travel of an X-ray into the body, the bodies being uniformly dispersed throughout the substrate and occupying about 25% of the total volume of the screen, and the bodies being of such size and being spatially separated from one another to provide the screen with a predetermined sensitivity to X-rays within a preselected energy range.
Dependencies are inferred from the claim text.