The present disclosure relates to an X-ray generating apparatus capable of providing an X-ray image and an X-ray system using the same, including: a field emitting part having a plurality of electron beam emitting regions arranged; an X-ray generating part generating X-rays by collision with electrons emitted from the field emitting part; and, a collimator transmitting X-rays generated from the X-ray generating part in a specific direction, in which a plurality of through-holes are arranged on the collimator to transmit the X-rays in a specific direction, and the X-ray can be blocked in a region other than the through-hole.

In an embodiment an X-ray source includes an electron source configured to emit electrons, an acceleration set-up configured to accelerate the emitted electrons and a transmission window downwards of the acceleration set-up, wherein the transmission window is configured to let through X-rays generated by the accelerated electrons, wherein the transmission window is located either in a straight extension of a line-of-flight of the accelerated electrons or off the line-of-flight and past the acceleration set-up, wherein the transmission window comprises a carbon carrier, and wherein the carbon carrier comprises sp2-hybridized carbon.

In an embodiment an X-ray source includes an electron source configured to emit electrons, an acceleration set-up configured to accelerate the emitted electrons and a transmission window downwards of the acceleration set-up, wherein the transmission window is configured to let through X-rays generated by the accelerated electrons, wherein the transmission window is located either in a straight extension of a line-of-flight of the accelerated electrons or off the line-of-flight and past the acceleration set-up, wherein the transmission window comprises a carbon carrier, and wherein the carbon carrier comprises sp2-hybridized carbon.

A collimator for an x-ray tube can be a monolithic, integral structure. The collimator can include a proximal-end closest to a cathode and a distal-end farthest from the cathode. The proximal-end can adjoin a vacuum inside of the x-ray tube. The distal-end can adjoin the air. The collimator can include an aperture extending therethrough. An x-ray window can be mounted across the aperture. The aperture can include a collimation-region between the x-ray window and the distal-end, and a drift-region between the x-ray window and the proximal-end. X-rays can be generated inside of the collimator.

A collimator for an x-ray tube can be a monolithic, integral structure. The collimator can include a proximal-end closest to a cathode and a distal-end farthest from the cathode. The proximal-end can adjoin a vacuum inside of the x-ray tube. The distal-end can adjoin the air. The collimator can include an aperture extending therethrough. An x-ray window can be mounted across the aperture. The aperture can include a collimation-region between the x-ray window and the distal-end, and a drift-region between the x-ray window and the proximal-end. X-rays can be generated inside of the collimator.

An x-ray tube (100) includes a support structure (114) defining an opening therethrough. A concave x-ray transmission window (116) is sealed to the support structure (114) and covers the opening. The support structure (114) and the x-ray transmission window (116) contain a vacuum. A filament (124) emits electrons (126) upon application of a sufficient potential difference between the filament (124) and the x-ray transmission window (116). A target (118) is disposed the x-ray transmission window (116). The target (118) generates x-rays (128) as when impacted by electrons (126). The x-rays (128) are transmitted through the x-ray transmission window (116).

An x-ray tube (100) includes a support structure (114) defining an opening therethrough. A concave x-ray transmission window (116) is sealed to the support structure (114) and covers the opening. The support structure (114) and the x-ray transmission window (116) contain a vacuum. A filament (124) emits electrons (126) upon application of a sufficient potential difference between the filament (124) and the x-ray transmission window (116). A target (118) is disposed the x-ray transmission window (116). The target (118) generates x-rays (128) as when impacted by electrons (126). The x-rays (128) are transmitted through the x-ray transmission window (116).

An x-ray imaging system includes at least one detector and an x-ray source including an x-ray transmissive vacuum window. The x-ray source is configured to produce diverging x-rays emerging from the vacuum window and propagating along an x-ray propagation axis extending through a region of interest of an object to the at least one detector. The diverging x-rays have propagation paths within an angular divergence angle greater than 1 degree centered on the x-ray propagation axis. The system further includes at least one first motion stage configured to rotate the object about a rotation axis. The system further includes at least one second motion stage configured to move the x-ray source and the at least one detector relative to the object to switch between a laminography configuration and a tomography configuration.

Some embodiments include an x-ray system, comprising: a vacuum enclosure; a plurality of electron sources disposed within the vacuum enclosure; an anode including at least one target with a plurality of focal spots disposed in a planar array within the vacuum enclosure, each focal spot configured to generate an x-ray beam in response to an electron beam from a corresponding one of the electron sources; a plurality of first collimators disposed within the vacuum enclosure, each first collimator associated with a corresponding one of the focal spots and configured to collimate the x-ray beam of the corresponding focal spot; and a second collimator integrated with a housing of the vacuum enclosure or external to the vacuum enclosure, the second collimator configured to collimate each of the x-ray beams.

A lightweight X-ray tube assembly and X-ray CT equipment having the same. The X-ray tube assembly includes an X-ray tube and a tube housing. The X-ray tube includes: a cathode for generating an electron beam; an anode for radiating X rays by collision of the electron beam; an envelope for holding the cathode and the anode in a vacuum atmosphere; and an X-ray window provided in the envelope to irradiate some of X rays radiated from the anode toward a test subject. The tube housing encapsulates the X-ray tube together with an insulating oil. The X-ray tube assembly further includes a protective member that is provided at least around the X-ray window on an outer wall of the envelope and shields the X rays.