Anti-scatter grid with an end stop element for stacked arrangement with a sensor element
AssigneeSiemens Healthineers AG
InventorsStefan Wölfel, Michael Teuber, Michaela Katharina Faber
Life of this patent
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Abstract
An anti-scatter grid for stacked arrangement with a sensor element for the detection of X-ray radiation having a collimator element with a plurality of collimator walls having a wall height, that are arranged adjoining one another in at least one first direction perpendicularly to the stacking direction of the stacked arrangement. At least one collimator wall of the collimator element has at least one end stop element in the form of a protrusion protruding beyond the wall height along the stacking direction for a positioning of the sensor element relative to the collimator element.
Claims11
An anti-scatter grid for stacked arrangement with a sensor element for a detection of X-ray radiation, the anti-scatter grid comprising:
- a collimator element formed as a single, integral component and including a plurality of collimator walls having a wall height along a stacking direction, wherein the plurality of collimator walls are arranged adjoining one another in at least one first direction perpendicularly to the stacking direction;
- wherein at least one collimator wall of the collimator element includes at least one end stop element that extends beyond the wall height in the stacking direction and defines a stop surface that positions the sensor element at a predetermined position relative to the collimator element along the stacking direction;
- wherein the at least one end stop element is connected to the plurality of collimator walls via a predetermined fracture site, wherein the predetermined fracture site is provided as a wall region of the plurality of collimator walls with an increased porosity relative to a remainder of the plurality of collimator walls.
An X-ray detector comprising:
- at least one sensor element for X-ray radiation;
- and
- at least one anti-scatter grid comprising:
- a collimator element formed as a single, integral component and including a plurality of collimator walls including a wall height extending along a stacking direction, wherein the plurality of collimator walls are arranged adjoining one another in at least one first direction perpendicularly to the stacking direction of a stacked arrangement, wherein at least one collimator wall of the collimator element includes at least one end stop element that extends beyond the wall height in the stacking direction and defines a stop surface that positions the sensor element at a predetermined position relative to the collimator element along the stacking direction, wherein the at least one end stop element is connected to the plurality of collimator walls via a predetermined fracture site, wherein the predetermined fracture site is provided in a form of a perforation of the plurality of collimator walls.
A method for providing a stacked arrangement of an anti-scatter grid and at least one sensor element for detection of X-ray radiation, the method comprising:
- providing an anti-scatter grid comprising at least one collimator element formed as a single, integral component and having a plurality of collimator walls with a wall height extending along a stacking direction;
- providing the at least one sensor element;
- relative positioning of the collimator element and the sensor element over one another along the stacking direction such that the sensor element is brought into abutment with at least one end stop element integrally formed on at least one collimator wall, the end stop element extending beyond the wall height and defining a stop surface that positions the sensor element at a predetermined position relative to the collimator element;
- fixing the relative position of the anti-scatter grid and the sensor element;
- and
- removing the end stop element from the collimator element.
Dependencies are inferred from the claim text.