A computer tomography apparatus has a circular anode and a circular radiation detector in which a patient to be examined is disposed. An electron beam from an electron gun is deflected by a beam deflection system, fed by a line voltage, so that the focus of the electron beam on the anode orbits the patient,...http://www.google.fr/patents/US4962513?utm_source=gb-gplus-shareBrevet US4962513 - Computer tomography apparatus which avoids image artifacts caused by periodical voltage variations
Computer tomography apparatus which avoids image artifacts caused by ...