The present disclosure relates to a CNT X-ray source apparatus, and more particularly, to a CNT X-ray source apparatus configured to maximize utilization of the internal space of a CNT X-ray tube body, having grooves made of an insulating material, and provided with a base portion for supporting a plurality of electrodes. With this configuration, mass production is possible. The CNT X-ray source apparatus of the present disclosure includes a cathode electrode; an emitter provided on the cathode electrode and responsible for emitting electrons; a gate electrode disposed above the cathode electrode and spaced apart from the cathode electrode by a predetermined interval; a focusing electrode for preventing scattering of electrons emitted from the emitter; and a base portion responsible for supporting one or more of the cathode electrode, the gate electrode, and the focusing electrode and formed of an insulating material. In this case, one or more grooves for accommodating at least one of the cathode electrode, the gate electrode, and the focusing electrode are formed in the base portion.

Disclosed is a ceramic shielding apparatus including at least one shield made of a ceramic material and provided inside or outside an X-ray tube to shield radiation; and supports configured to support the shield. According to such a configuration, disadvantages of conventional shielding materials such as lead can be addressed, so that a shield apparatus having excellent shielding properties while being harmless to the human body can be provided.

A source for generating ionizing radiation and in particular x-rays, to an assembly includes a plurality of sources and to a process for producing the source. The source comprises: a vacuum chamber; a cathode that is able to emit an electron beam into the chamber; an anode that receives the electron beam and that comprises a target that is able to generate ionizing radiation from the energy received from the electron beam; an electrode that is placed in the vicinity of the cathode and that allows the electron beam to be focused; a stopper ensuring the seal tightness of the vacuum chamber; and a mechanical part that is made of dielectric and that forms a portion of the vacuum chamber; and the stopper is fastened to the mechanical part by means of a conductive brazing film that is used to electrically connect the electrode.

Embodiments of the invention provide a conductive coating on an insulator of an x-ray tube and a method for applying the conductive coating. The method may use a first process, such as brazing, to join a support to the insulator and a second process, such as vapor deposition, to apply the conductive coating onto a substrate surface of the insulator. The second process may be carried out after the first process without any damage to x-ray tube insulator assembly.

An X-ray tube and an X-ray imaging device are disclosed. The X-ray tube comprises: a glass envelope; a cathode assembly, accommodated inside the glass envelope; and a core column structure, connected to the glass envelope and the cathode assembly, such that the cathode assembly is sealed inside the glass envelope. The core column structure comprises: a metal flat plate, wherein the cathode assembly is fixed to the metal flat plate; and a sealing bead, wherein the sealing bead is arranged in the metal flat plate, and an electrically conductive support rod connected to the cathode assembly passes through two ends of the sealing bead. The X-ray tube enables generated heat to be rapidly transferred to a cooling medium via thermally conductive metal to improve heat dissipation efficiency.

Disclosed are a cartridge-type X-ray source apparatus and an X-ray emission apparatus using the same. The X-ray source includes: a cathode electrode provided with an electron emission source by using a nanostructure; an anode electrode having a target emitting X-rays by electron collision; and a housing forming an external appearance, and exposing a cathode electrode terminal connected to the cathode electrode and an anode electrode terminal connected to the anode electrode to an outside thereof, wherein the cathode electrode terminal and the anode electrode terminal differ from each other in at least one of exposure direction, height, size, and shape.

An X-ray source (10) for generating X-rays (11) is provided. The X-ray source (10) comprises an emitter arrangement (12) for generating electrons or for generating X-rays, at least one feedthrough (38) for supplying electrical power to the emitter arrangement (12), and an insulator (20) configured for isolating an electrical potential of the at least one feedthrough (38) from a ground potential. Therein, the at least one feedthrough (38) extends at least partly through the insulator (20), and at least a part of the insulator (20) is in thermal contact with at least a part of the emitter arrangement (12). Further, the insulator (20) comprises at least one cooling channel (28) formed completely in an interior volume (25) of the insulator (20) and configured to dissipate heat from the emitter arrangement (12), wherein a distance (29) between an outer surface (26) of the insulator (20) and the cooling channel (28) is at least as large as half of a thickness (27) of the cooling channel (20).

The invention proposes an insulator within an X-ray tube having a vacuum side and an ambient side and a feedthrough substantially coinciding with an axis of symmetry at the vacuum side and an axis of symmetry at the ambient side. The axis of symmetry at the vacuum side and the axis of symmetry at the ambient side have an angle of at least 5°, preferably 90°, with respect to each other. An X-ray source comprising such an insulator is presented as well and the present invention also extends to a medical imaging apparatus for generating X-ray images of a patient thereby using an X-ray source with such an insulator. In an embodiment, an X-ray source is provided wherein the insulator is plugged to an electrical connector at the ambient surface.

A thickness of a bonding material (8) is varied in a radial direction orthogonal to a central axis (P) of the tubular anode member (6), the bonding material (8) being used for bonding a transmitting substrate (7) for supporting a target layer (9) and a tubular anode member (6) in a direction along the central axis (P). Thus, a region in which a circumferential tensile stress of the bonding material (8) is alleviated is formed in the direction along the central axis (P) to prevent a crack from developing in the bonding material (8).

A source for generating ionizing radiation and in particular x-rays, to an assembly includes a plurality of sources and to a process for producing the source. The source comprises: a vacuum chamber; a cathode that is able to emit an electron beam into the chamber; an anode that receives the electron beam and that comprises a target that is able to generate ionizing radiation from the energy received from the electron beam; an electrode that is placed in the vicinity of the cathode and that allows the electron beam to be focused; a stopper ensuring the seal tightness of the vacuum chamber; and a mechanical part that is made of dielectric and that forms a portion of the vacuum chamber; and the stopper is fastened to the mechanical part by means of a conductive brazing film that is used to electrically connect the electrode.