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US 11,232,881 B2Granted
Anti-scatter grid assembly for detector arrangement
AssigneeKoninklijke Philips N.V.
InventorsAxel Thran, Heiner Daerr, Ewald Roessl, Gereon Vogtmeier
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Abstract
The present invention relates to an anti-scatter grid (ASG) assembly comprising a first and a second grid, wherein the second grid is arranged on top of the first grid and comprises a lateral shift. The lamella thickness of the first grid is smaller than the lamella thickness of the second grid. The present invention further relates to a detector arrangement comprising a pixel detector and an ASG assembly arranged on top of the pixel detector.
Claims20
An anti-scatter grid assembly for a pixel detector, comprising:
- a first grid comprising first lamellas and first holes;
- and
- a second grid comprising second lamellas and second holes, wherein the second grid is arranged incongruently on top of the first grid with a lateral shift in at least one lateral direction such that at least 50% of the second lamellas are substantially not aligned with the first lamellas, and wherein a first thickness of the first lamellas is smaller than a second thickness of the second lamellas.
A detector arrangement, comprising:
- a pixel detector;
- and
- an anti-scatter grid assembly comprising:
- a first grid comprising first lamellas and first holes;
- and
- a second grid comprising second lamellas and second holes, wherein the second grid is arranged incongruently on top of the first grid with a lateral shift in at least one lateral direction such that at least 50% of the second lamellas are substantially not aligned with the first lamellas, and wherein a first thickness of the first lamellas is smaller than a second thickness of the second lamellas, wherein the anti-scatter grid assembly is arranged on top of the pixel detector such that the first grid faces the pixel detector.
3 more elements
Dependencies are inferred from the claim text.