The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 1981
Filed:
Jun. 21, 1979
Rudolf Schittenhelm, Erlangen, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
In an exemplary embodiment, a radiation source emits a radiation beam for penetrating the layer to be examined from different directions. A radiation receiver supplies electric output signals corresponding to the transmitted radiation intensity. A computer calculates the attenuation values of specific image points of the irradiated body layer based on the output signals. Correction devices are provided in the radiation receiver with which the radiation quality (mean energy) of the radiation striking the device is determined; each correction device preferably consists of a plurality of detectors arranged behind one another in the direction of the radiation, which detectors can be separated from one another by means of absorber layers. The output signals of the correction detectors serve for determining a correction for the radiation hardening in the patient.