X-ray detector with an arrangement of a pixelated second electrode and a scattered radiation grid

US10588583B2 · kind B2 · utility

Assignee

• Siemens Healthcare Limited · DE

Inventors

• Thorsten ERGLER · Erlangen, DE
• Edgar Goederer · Forchheim, DE
• Bjoern Kreisler · Eschborn, DE
• Miguel Labayen De Inza · Forchheim, DE
• Christian Schroeter · Bamberg, DE
• Peter Sievers · Uttenreuth, DE
• Kurt Stadlthanner · Ergolding, DE

Key dates

• Filing date: Dec 28, 2017
• Grant date: Mar 17, 2020
• Expiry date: Aug 3, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G21K1/025
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An X-ray detector includes a stack arrangement with a scattered radiation grid and a planar converter element including a first surface and a second surface. The converter element includes a first electrode embodied on the first surface and a pixelated second electrode with two adjacent first electrode elements. The two adjacent first electrode elements include a first width and a first length and the two adjacent first electrode elements are embodied the second surface opposite the first surface. The scattered radiation grid includes a grid wall with a thickness along the boundary between the two adjacent first electrode elements. The grid wall is arranged to be substantially perpendicular on the first surface and, in a projection, substantially parallel to the direction of incidence of the radiation and to the surface normal of the first surface. The grid wall at least partially overlaps the two adjacent first electrode elements.