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US 11,819,348 B2Granted
Multi-maximum x-ray spectrum systems and multi-layer imaging systems
AssigneeVarex Imaging Corporation
InventorsArundhuti Ganguly, Ivan P Mollov
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Abstract
Some embodiments include an x-ray system, comprising: an x-ray imager including a plurality of imaging layers; an x-ray source configured to generate an x-ray beam; and an x-ray prefilter; wherein: the x-ray prefilter is configured to adjust an energy spectrum of the x-ray beam to create or decrease a level of x-ray fluence of a local minimum between two of a plurality of local maximums.
Claims18
An x-ray system, comprising:
- an x-ray imager including a plurality of imaging layers;
- an x-ray source configured to generate an x-ray beam;
- and
- an x-ray prefilter;
- wherein:
- the x-ray prefilter is configured to adjust an energy spectrum of the x-ray beam to create or decrease a level of x-ray fluence of a local minimum between two of a plurality of local maximums;
- the x-ray prefilter includes multiple materials, each having a different k-edge absorption;
- and
- the x-ray prefilter includes a plurality of layers in a stack such that at least part of the x-ray beam passes through each of the layers, each layer including one of the materials of the x-ray prefilter.
6 more elements
An x-ray system comprising:
- an x-ray source configured to generate an x-ray beam;
- a movable x-ray filter including a plurality of filter regions, wherein at least one of the filter regions has an attenuation characteristic that is different from at least one of the other filter regions;
- and
- control logic configured to move the x-ray filter with respect to the x-ray source during an exposure.
1 more element
An x-ray system, comprising:
- means for generating an x-ray beam;
- means for filtering the x-ray beam to have a multi-maximum energy spectrum;
- means for converting at least a first part of the filtered x-ray beam into a first image;
- means for converting at least a second part of the filtered x-ray beam into a second image;
- and
- means for generating a third image based on the first image and the second image.
3 more elements
Dependencies are inferred from the claim text.