Koninklijke Philips Corporation N.v.

Marcus Walter Foellmer

Rolf Karl Otto Behling

Stefan Hauttmann

Zoryana Terletska

A cathode for an X-ray tube, an X-ray tube, a system for X-ray imaging, and a method for an assembly of a cathode for an X-ray tube include a filament, a support structure, a body structure, and a filament frame structure. The filament is provided to emit electrons towards an anode in an electron emitting direction, and the filament at least partially includes a helical structure. Further, the filament is held by the support structure which is fixedly connected to the body structure. The filament frame structure is provided for electron-optical focusing of the emitted electrons, and the filament frame structure is provided adjacent to the outer boundaries of the filament. The filament frame structure includes frame surface portions arranged transverse to the emitting direction, and the filament frame structure is held by the support structure.

Cathode filament assembly

A multiple X-ray beam X-ray source includes an anode structure and a cathode structure. The anode structure includes a plurality of liquid metal jets providing a plurality of focal lines. The cathode structure provides an electron beam structure that provides a sub e-beam to each liquid metal jet. The liquid metal jets are each hit by the sub e-beam along an electron-impinging portion of the jet circumferential surface that is smaller than half of the circumference of a cross-section of the liquid metal jet.

Multiple X-ray beam tube

A rotating anode disk is balanced in a state where the rotating anode disk is mounted inside an X-ray tube. An adjustment device () balances the rotating anode disk in an operating state. The adjustment device includes at least a first plurality () of balancing elements () which are attached to at least one circular ring structure (). The balancing elements each include a balancing portion () mounted to the circular ring structure via a bending portion (). The bending portions are configured to be heated to a bending temperature to allow a radial pivoting movement () of the balancing portion from a first state () into a second state () caused by centrifugal forces upon rotation. A center of mass of the balancing portion is closer to a center () of the circular ring structure in a first state than the second state.

Growing community of inventors

Hamburg, Germany

Marcus Walter Foellmer