Adaptive x-ray filter for changing the local intensity of x-rays
AssigneeSiemens Aktiengesellschaft
InventorsHans Liegl, Reiner Franz Schulz
Life of this patent
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Abstract
An adaptive x-ray filter for changing a local intensity of x-rays includes an x-ray absorbing first fluid and electrically deformable control elements. The electrically deformable control elements change a layer thickness of the first fluid at a site of a respective electrically deformable control element by at least partially displacing the x-ray absorbing first fluid.
Claims19
An adaptive x-ray filter for changing a local intensity of x-rays, the adaptive x-ray filter comprising:
- a first fluid operable to absorb x-rays;
- a plurality of control elements that is electrically deformable and is operable to change a layer thickness of the first fluid at a site of a respective control element of the plurality of control elements by at least partially displacing the first fluid;
- and
- a flexible membrane that is transparent for the x-rays, the flexible membrane separating the first fluid from the plurality of control elements,
- wherein the flexible membrane is movable by the plurality of control elements.
A method for changing a local intensity of x-rays using an adaptive x-ray filter, the method comprising:
- electrically deforming, electrically-induced changing, or electrically deforming and electrically-induced changing in length of a plurality of control elements of the adaptive x-ray filter arranged in a plane;
- and
- changing a layer thickness of an x-ray absorbing first fluid being irradiated by the x-rays at a site of a respective control element of the plurality of control elements, the changing comprising at least partially displacing, by a flexible membrane movable by the plurality of control elements, the x-ray absorbing first fluid, the flexible membrane being transparent for the x-rays and separating the first fluid from the plurality of control elements.
An adaptive x-ray filter for changing a local intensity of x-rays, the adaptive x-ray filter comprising:
- a first fluid operable to absorb x-rays;
- a plurality of control elements that is electrically deformable and is operable to change a layer thickness of the first fluid at a site of a respective control element of the plurality of control elements by at least partially displacing the first fluid;
- and
- a lifting apparatus arranged on a control element of the plurality of control elements, the lifting apparatus operable to increase travel of the control element.
Dependencies are inferred from the claim text.