Determining changes in the x-ray emission yield of an x-ray source

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United States of America Patent

PATENT NO 9370084
APP PUB NO 20130223594A1
SERIAL NO

13883291

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Abstract

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The present invention relates to determining changes in the X-ray emission yield of an X-ray tube, in particular determining dose degradation. In order to provide determination of such changes, an X-ray source is provided comprising a cathode, an anode; and at least one X-ray sensor (16). The cathode emits electrons towards the anode and the anode comprises a target area on which the electrons impinge, generating X-ray radiation. An X-ray barrier (24) is provided with an aperture (26) for forming an emitting X-ray beam from the X-ray radiation, wherein the emitting X-ray beam has a beam formation (30) with a central axis. The at least one X-ray sensor is arranged within the beam formation and measures the X-ray intensity for a specific direction of X-ray emission with an angle with respect to the central axis. The at least one X-ray sensor can be positioned inside the beam formation (30), but outside the “actual field of view” (40) as determined by a diaphragm (36).

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Patent Owner(s)

Patent OwnerAddress
KONINKLIJKE PHILIPS ELECTRONICS N VHOLLAND IAN DEHO FINN EINDHOVEN NORTH BRABANT

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duerr, Martin Kimutai Aachen, DE 3 33
Kiewitt, Rainer Roetgen, DE 24 350
Sprong, Hans Peter Eindhoven, NL 4 42

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