X-ray detector system

US4856041A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Sigismund Klein · Nuremberg, DE
• Reiner Schulz · Remscheid, DE

Key dates

• Filing date: Jun 25, 1987
• Grant date: Aug 8, 1989
• Expiry date: Jun 25, 2007

Classification

• Technology area (CPC G): Physics
• CPC primary: G21K1/02
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

An x-ray detector system has a detector element disposed at the end of a channel formed by spaced collimator plates. The thickness of each collimator plate projected onto the detector element increases along the length of the collimator plates in the direction of radiation propagation through the channel. The projection (and thus the thickness) has a greatest value at a detector-proximate end of the plate. The edge regions of the detector element are thus shielded from x-radiation by the extended width collimator plates. The length of the absorption paths in the detector element thus are substantially the same, even given a detector element which is slightly obliquely disposed. Thus the shape of the portion of the detector surface effective for detecting radiation is substantially independent of slight changes in the focus position.