Abstract: The present disclosure relates to a collimator for an X-ray inspection system that is plate-shaped with a bottom side and a top side that is made of a material that is a good absorber of X-rays, with a collimator aperture, the collimator aperture having an inlet surface on the bottom side that has a first center of area and an outlet surface on the top side that has a second center of area. According to the present disclosure, either the collimator aperture, when installed in an X-ray laminography system, is not struck by a central beam of a cone beam emitted by an X-ray tube of this X-ray laminography system, or the first center of area and the second center of area form a collimation axis that forms a collimation angle with the normal of the surface of the collimator 1? not equal to zero.

Abstract: A test body for checking image quality during an X-ray examination of a test object that has a first layer of test subjects to be checked and has an intermediate layer on which the test subjects are arranged is disclosed. The test body has a first test layer and a solid spacer plate arranged thereon. The thickness of the first test layer corresponds to the thickness of the test subjects in the test object, and the thickness of the spacer plate corresponds to the thickness of the intermediate layer. A plurality of first holes are formed in the first test layer. The material of the first test layer has an absorption factor that corresponds to the absorption factor of the associated test subjects. The material the spacer plate has an absorption factor that corresponds to the absorption factor of the intermediate layer.

Abstract: A component part in a vacuum area of an X-ray tube with an opening through which an electron beam is guided. The component part includes a base body made of a first material, wherein the first material is a metal. Arranged on a surface forming the opening is a second material having an atomic number which is smaller than an atomic number of the first material. A target support is attached to an end of the component part. The target support supports a target which is aligned with a lens diaphragm formed at the end of the component part. The target support has a base body made of a first material which is a metal, and a second material formed on a surface of the base body that is selectively exposed to the electron beam and which extends between the target and the lens diaphragm.

Abstract: A component part in a vacuum area of an X-ray tube with an opening through which an electron beam is guided. The component part includes a base body made of a first material, wherein the first material is a metal. Arranged on a surface forming the opening is a second material having an atomic number which is smaller than an atomic number of the first material. A target support is attached to an end of the component part. The target support supports a target which is aligned with a lens diaphragm formed at the end of the component part. The target support has a base body made of a first material which is a metal, and a second material formed on a surface of the base body that is selectively exposed to the electron beam and which extends between the target and the lens diaphragm.

Abstract: An objective lens and condenser lens for an X-ray tube with an objective lens inner core, an inner objective lens coil arranged thereon and an objective lens outer core arranged around it. An outer objective lens coil is arranged between inner objective lens coil and objective lens outer core, wherein the outer objective lens coil has two objective lens wire sections with the same number of turns. The condenser lens includes a condenser lens inner core, an inner condenser lens coil arranged on the condenser lens inner core and a condenser lens outer core arranged around the inner condenser lens coil, wherein an outer condenser lens coil is arranged between the inner condenser lens coil and the condenser lens outer core, wherein the outer condenser lens coil has two condenser lens wire sections with the same number of turns.

Abstract: A diaphragm for restricting a cross section of an electron beam of an X-ray tube includes a base body made of a first material, which has a first cylindrical or conical diaphragm aperture, and an additional body made of a second material, which has a second cylindrical or conical diaphragm aperture. The additional body in the installed state is arranged on the side near the electron source, wherein the atomic number of the first material is greater than the atomic number of the second material. The diameters of the diaphragm apertures at the end far from the electron source are not smaller than at the end near the electron source, and the second diaphragm aperture at its end far from the electron source lies completely inside the first diaphragm aperture at its end near the electron source.

Abstract: Method for calibrating a high-voltage generator of an X-ray tube in a tube-detector system including: introducing at least two filters of different materials into an X-ray beam between the X-ray tube and a detector, the first filter material having its K-edge outside and the second filter material having its K-edge inside a predefinable high-voltage range; setting a nominal high-voltage value at the generator and recording an X-ray image of the filters through the detector; recording X-ray images of the filters at other nominal values; forming a relationship between signals in the X-ray images for the first and second materials for each nominal high-voltage value; determining the nominal high-voltage value by reference to the setting at the generator where the relationship has an extreme value; calculating a difference between this nominal high-voltage value and the K-edge value of the second material; and correcting the nominal high-voltage value by the calculated difference.

Abstract: A diaphragm for restricting a cross section of an electron beam of an X-ray tube includes a base body made of a first material, which has a first cylindrical or conical diaphragm aperture, and an additional body made of a second material, which has a second cylindrical or conical diaphragm aperture. The additional body in the installed state is arranged on the side near the electron source, wherein the atomic number of the first material is greater than the atomic number of the second material. The diameters of the diaphragm apertures at the end far from the electron source are not smaller than at the end near the electron source, and the second diaphragm aperture at its end far from the electron source lies completely inside the first diaphragm aperture at its end near the electron source.