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:
Nov. 17, 1992
Filed:
Oct. 02, 1991
Applicant:
Inventor:
Hans-Jochen Krumme, Uttenreuth, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05G / ;
U.S. Cl.
CPC ...
370 10 ; 378137 ;
Abstract
In a computer tomography apparatus having an annularly guided electron beam, has an x-ray source with an annular anode. Before the beginning of a scan event, the electron beam travels through the x-ray source concentrically relative to the annular anode until it is incident on a beam catcher at the closed end of the x-ray source. Proceeding from the end of the x-ray source at which the beam catcher is disposed, the electron beam is focused on, and scans, the annular anode. A constant focus size of the electron beam on the annular anode is thereby achieved.