PERFEZIONAMENTO NEI TUBI GENERATORI DI RAGGI X CON SCHERMO STATORICO

An X-ray tube has a tubular envelope with a cathode (40) for directing an electron beam (44) onto a focal spot area (46) of a spaced anode target (54) to generate X-rays. The target is mounted for axial rotation on one end of a rotor disposed in an end portion of the envelope and encircled by a stat...

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Bibliographic Details
Main Authors ALBERT S. ZACARIAS, JAY W. SHEPHERD
Format Patent
LanguageItalian
Published 26.02.1982
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
X-RAY TECHNIQUE
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Summary:An X-ray tube has a tubular envelope with a cathode (40) for directing an electron beam (44) onto a focal spot area (46) of a spaced anode target (54) to generate X-rays. The target is mounted for axial rotation on one end of a rotor disposed in an end portion of the envelope and encircled by a stator (20) of an alternating current induction motor (22). An annular shield (24) of high permeability magnetic material extends transversely between the electron beam and the stator of the induction motor for shunting stray or fringe electromagnetic fields established by the stator away from the electron beam to avoid consequent lateral defections of the electron and corresponding lateral movements of the focal spot area.
Bibliography:Application Number: IT19820047873