THERMIONIC SURFACE EMITTER AND ASSOCIATED METHOD TO OPERATE AN X-RAY TUBE

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United States of America Patent

APP PUB NO 20110280377A1
SERIAL NO

13102112

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Abstract

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In a thermionic surface emitter and an associated method to operate an x-ray tube, the surface emitter has a conductor path in its emission surface, the conductor path having at least one current entrance point and at least one current exit point. In the thermionic surface emitter, the width of the conductor path is variable i.e. is non-constant or non-uniform. The electrical resistance of the emitter structure thus varies along the heating current path, with the consequence that a symmetrical emission structure can be achieved at a working point established by the hardware geometry.

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Patent Owner(s)

Patent OwnerAddress
SIEMENS AKTIENGESELLSCHAFTWITTELSBACHERPLATZ 2 MÜNCHEN 80333

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Freudenberger, Joerg Kalchreuth, DE 35 118
Roehrich, Gunter Erlangen, DE 2 8

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