H - Electricity – 05 – G
Patent
H - Electricity
05
G
358/11.1
H05G 1/00 (2006.01) A61B 6/03 (2006.01) A61B 6/06 (2006.01)
Patent
CA 1107407
PHN 8803 30.1.78 ABSTRACT: A device for computer tomography in which a pa- tient to be examined is irradiated in different directions by a flat, fan-shaped beam of X-rays which is generated by an X-ray source having a comparatively small emissive surface area. The locally transmitted radiation is measur- ed by means of an X-ray detector comprising a series of de- tection elements which are arranged on an arc of a circle and which have a comparatively small radiation entrance surface area. A computer is used to calculate the density distribution of the irradiated part of the patient on the basis of the measuring data. During an examination, the X- ray source and the X-ray detector rotate in opposite direc- tions about a common axis of rotation which extends trans- versely of the plane of the fan-shaped beam. The distance between the radiation entrance surfaces of the detection elements and the axis of rotation equals the distance be- tween the emissive surface of the X-ray source and the axis of rotation. Because the X ray source and the X-ray detector rotate in opposite directions, the patient to be examined is scanned by the X-ray source and a detection element in mutually substantially parallel, consecutive paths. Differences in the sensitivity of detection ele- ments do not become manifest as annular interference pat- terns in the calculated density distribution. - 16 -
303633
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
LandOfFree
Device for computer tomography does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for computer tomography, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for computer tomography will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-185006