X-Ray diagnostic installation comprising means for the formation of a transparency signal

US4455669A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Horst Aichinger · Ergolding, DE
• Heinz-Erik Kranberg · Erlangen, DE

Key dates

• Filing date: Feb 2, 1981
• Grant date: Jun 19, 1984
• Expiry date: Feb 2, 2001

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/4291
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In an exemplary embodiment, two radiation detectors are arranged behind the radiography subject. One of the detectors is covered by a radiation filter. A different radiation attenuation along the radiation paths of the respective detectors thereby takes place, so that, through division of the output signals of the detectors, a quotient signal can be obtained which corresponds to the radiation transparency of the radiography subject.