FIELD: physics.
SUBSTANCE: invention relates to X-ray engineering. A rotating anode for an X-ray tube comprises a first unit configured for collision through a first electron beam and at least a second unit configured for collision at least through a second electron beam. The first unit and the second unit are electrically insulated from each other. Also disclosed is an X-ray system, comprising an anode according to a detailed description and a main cathode for forming an electron beam. The main cathode is configured to generate a first electric potential. An auxiliary cathode is configured to affect a second electric potential. The main cathode is configured to deflect the electron beam in order to heat the auxiliary cathode. The invention also discloses an apparatus for determining electric potential by detecting the point of collision of an electron beam on the anode according to the detailed description and/or by detecting the X-ray spectrum of radiation originating from the anode according to the detailed description, wherein an electron beam is formed by the cathode, wherein the electron beam strikes the first anode unit at the point of collision, wherein the electron beam can be deflected, wherein the deflected electron beam strikes the second anode unit at the point of collision, wherein the first unit and/or second unit emit radiation.
EFFECT: high quality of the X-ray picture.
14 cl, 15 dwg
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Authors
Dates
2015-02-10—Published
2009-11-19—Filed