Abstract: There is provided a radiation transmissive window having high radiation transmissivity. The radiation transmissive window includes: an outer frame having an opening; a radiation transmissive film closing off the opening; and a grid member that partitions the opening into a plurality of small opening portions. The grid member has a first portion, a second portion at a smaller distance to the center of the opening than the first portion, and a third portion at a smaller distance to the center of the opening than the second portion. The first portion is greater in width than the second portion. The second portion is greater in width than the third portion.

Abstract: An x-ray window can include a thin film that comprises boron. The thin film can be relatively thin, such as for example ?200 nm. This x-ray window can be strong; can have high x-ray transmissivity; can be impervious to gas, visible light, and infrared light; can be easy of manufacture; can be made of materials with low atomic numbers, or combinations thereof. The thin film can include an aluminum layer. A support structure can provide additional support to the thin film. The support structure can include a support frame encircling an aperture and support ribs extending across the aperture with gaps between the support ribs. The support structure can also include boron ribs aligned with the support ribs.

Abstract: An X-ray analyzer includes: a detector which detects X-rays generated from a specimen; a cooling element which cools the detector; and a spectrum generating unit which generates a spectrum based on a detection signal of the detector. The spectrum generating unit corrects an attenuation of intensity of a spectrum attributable to contamination of the detector, based on an elapsed time from a reference time until the X-rays are detected.

Abstract: A mounted x-ray window can be strong and transmissive to x-rays, can have a hermetic seal, and can withstand high temperatures. The mounted x-ray window can include a film located on an inner-side of a flange of a housing and can be attached to the flange by a ring of elastic adhesive. The film can comprise silicon nitride. A method of mounting an x-ray window can include placing a ring of elastic adhesive on an inner-side of a flange of a housing, placing a film on the ring of elastic adhesive, and baking the housing, the ring of elastic adhesive, and the film.

Abstract: Herein disclosed is an x-ray florescence (XRF) test system which comprises an XRF test instrument used for testing a test target's responses to X-rays, the instrument including a test window allowing the X-ray and its responsive energy to pass through, and a window protecting film assembly allowing X-rays to pass through and providing protection to the window, the film assembly being configured to be coupled with the window in a fashion to be removed from or applied or reapplied over the window. The corresponding calibration mode can be manually or automatically applied according to the specific film assembly presently in use. An embodiment of the film assembly comprises a thin film fixed with an adhesive layer to a supporting frame having a closely spaced array of apertures.

Abstract: A medical instrument is provided for use with a phase contrast imaging. The medical instrument includes at least one component, which has a strong small angle scattering of x-rays. Furthermore, a corresponding x-ray recording system with phase contrast imaging for recording an examination object may include such a medical instrument.

Abstract: A radiation window foil for an X-ray radiation window comprises a mesh that defines a number of openings (902), said mesh having a first side surface (903) and a second side surface (904). A layer (906) spans said openings. Said layer (906) is on the first side of the mesh but spans said openings at a level closer to the second side surface (904) of the mesh than the first side surface (903) of the mesh.

Abstract: For manufacturing a radiation window for an X-ray measurement apparatus, and etch stop layer is first produced on a polished surface of a carrier. A thin film deposition technique is used to produce a structural layer on an opposite side of said etch stop layer than said carrier. The combined structure comprising said carrier, said etch stop layer, and said structural layer is attached to a region around an opening in a support structure with said structural layer facing said support structure. The carrier is etched away.

Abstract: An electrical conductor includes a base substrate of at least one of copper, copper alloy, nickel or nickel alloy and a layered structure applied to the base substrate. The layered structure includes a foil and a graphene layer deposited on the foil. The layered structure is applied to the base substrate after the graphene layer is deposited on the foil. A method of manufacturing the electrical conductor includes providing a base substrate, providing a foil, depositing a graphene layer on the foil to define a layered structure, and depositing the layered structure on the base substrate.

Abstract: An X-ray fluorescence spectrometer includes: an X-ray source which irradiates a sample with primary X-rays; a light condensing device which condenses the primary X-rays to reduce an irradiation area on the sample; a detector which detects fluorescent X-rays produced from the sample irradiated with the primary X-rays; a housing which accommodates the X-ray source and the light condensing device; a temperature sensor which is disposed in at least one of the X-ray source and the periphery of the X-ray source; at least one external-air fan which is disposed on the housing, and which can exchange internal air with external air; and a control section which drives the external-air fan based on temperature information detected by the temperature sensor, to adjust the ambient temperature around the X-ray source to a constant temperature.

Abstract: An extension device includes a patient support surface and an extension beam (16) that can be connected via an interface (14) to the patient support surface and that has a holder for a feed rod arrangement. The patient support surface has at least two longitudinal beams (10) parallel to each other that carry a pelvic support plate. The interface (14) includes a coupling part (36) on the support surface side and a coupling part (38) on the beam side rigidly connected to the extension beam (16). The coupling part (36) on the support surface side on one of the longitudinal beams (10) is supported such that it can pivot about an axis perpendicular to the pelvic support plate, and whereby the coupling part (36) on the support surface side can be locked by a locking device, which may be actuated by remote actuation, against a rotation about its pivot axis relative to the longitudinal beam (10).

Abstract: Herein disclosed is an x-ray florescence (XRF) test system which comprises an XRF test instrument used for testing a test target's responses to X-rays, the instrument including a test window allowing the X-ray and its responsive energy to pass through, and at least one window protecting film allowing X-rays to pass through and providing protections to the window, the film being configured to be coupled with the window in a fashion to be removed from or applied or reapplied over the window. The corresponding calibration mode can be manually or automatically applied according to the specific film presently in use.

Abstract: A radiation detector assembly and a method for using the same are provided. The radiation detector assembly includes an aperture, a window covering the aperture, the window is configured to permit radiation to pass through, the window is configured to prevent the passage of fluids and particles through the aperture, and a protective device covers the window. The protective device includes a plurality of holes at least partially aligned with the aperture, is configured to permit at least some radiation to pass through the holes, is configured to prevent objects larger than the holes to contact the window and is configured to withstand external forces and prevent those forces from damaging the window.

Abstract: The invention concerns a radiation entry window (10) for a radiation detector (2), in particular for a semiconductor drift detector (2), with a flat window element (11), which is at least partially permeable for the radiation to be detected by the radiation detector (2), as well as with a window frame (12), which laterally frames the window element (11), wherein the window frame (12) consists of a semiconductor material and is considerably thicker than the window element (11). (FIG.

Abstract: An X-ray window includes a primary and a secondary window element. In order to evaporate debris by ohmic heating, current flows through the secondary (upstream) window element. Meanwhile, electric charge originating from electron irradiation and/or depositing charged particles is to be drained off the secondary window element via a charge-drain layer. To prevent large debris particles from short-circuiting the secondary window element, the current for heating the window element flows through heating circuitry which is electrically insulated from the charge-drain layer.

Abstract: An acquisition window for a medical apparatus (in particular for a computer tomography apparatus) has an element made of a suitable material and at least one attachment element for attachment to the medical apparatus.

Abstract: A support structure for x-ray windows including carbon composite ribs, comprising carbon fibers in a matrix. The support structure can comprise a support frame defining a perimeter and an aperture, a plurality of ribs comprising a carbon composite material extending across the aperture of the support frame and carried by the support frame, and openings between the plurality of ribs. A film can be disposed over, carried by, and span the plurality of ribs and disposed over and span the openings.

Abstract: An x-ray window includes a mount with a support frame and an aperture. A window film has a stack of layers including: a thin film layer comprising a material selected from the group consisting of diamond, graphene, diamond-like carbon, beryllium, and combinations thereof; a boron hydride layer; and a polymer layer. The window film, including the thin film layer, the boron hydride layer, and the polymer layer, extends across the aperture and is supported by the support frame. The window film is attached to the support frame, defining a sealed joint. The layers are capable of withstanding a differential pressure of at least 1 atmosphere. The window film is substantially transmissive to x-rays having an energy in the range of 100-20,000 electronvolts.

Abstract: An improved radiation window comprises a film permeable to radiation disposed on a support structure. The support structure comprises a primary transmissive area comprising a plurality of support members defining a plurality of apertures for radiation to pass through; a flange disposed around the periphery of the primary transmissive area having generally greater mechanical rigidity than the primary transmissive area; and a transition region disposed between, and contiguous with, the primary transmissive area and the flange; the transition region having generally greater mechanical rigidity than the primary transmissive area and generally lesser mechanical rigidity than the flange, thereby providing an intermediate rigidity transition between the dissimilar rigidities of the primary transmissive area and the flange. A radiation detection system comprises a sensor configured to detect radiation, disposed behind such an improved radiation window.

Abstract: An x-ray window including a support frame with a perimeter and an aperture. A plurality of ribs can extend across the aperture of the support frame and can be supported or carried by the support frame. Openings exist between ribs to allow transmission of x-rays through such openings with no attenuation of x-rays by the ribs. A film can be disposed over and span the ribs and openings. The ribs can have at least two different cross-sectional sizes including at least one larger sized rib with a cross-sectional area that is at least 5% larger than a cross-sectional area of at least one smaller sized rib.

Abstract: A fracture-safe viewport for a pressure system having a pressure port which is pumped by said pressure system to a pressure above or below atmospheric pressure, comprising a plurality of panes each capable of passing electromagnetic radiation therethrough, each pane being mounted inside a tubular structure and being hermetically sealed to the wall of the pressure chamber. Each of the panes may be a different material or any combination of materials may be used from the group comprising sapphire, glass and quartz or any other material through which a high powered laser or other electromagnetic beam may be directed without adverse consequences. Highly pure, defect-free, ultra-polished, single-crystal sapphire is preferred. Spacing between the panes is used in most embodiments to avoid shrapnel damage in case of catastrophic failure of a pane.

Abstract: An assembly of a support plate and an exit window foil for use in an electron beam generating device. The support plate is designed to reduce wrinkles in the foil. The foil is bonded to the support plate along a closed bonding line bounding an area in which the support plate is provided with a pattern of apertures and foil support portions alternately. When vacuum is created in the housing the pattern is adapted to form a topographical profile of the foil substantially absorbing any surplus foil. Another aspect involves a method in a filling machine for sterilizing a packaging material web.

Abstract: Herein disclosed is an x-ray florescence (XRF) test system which comprises an XRF test instrument used for testing a test target's responses to X-rays, the instrument including a test window allowing the X-ray and its responsive energy to pass through, and at least one window protecting film allowing X-rays to pass through and providing protections to the window, the film being configured to be coupled with the window in a fashion to be removed from or applied or reapplied over the window. The corresponding calibration mode can be manually or automatically applied according to the specific film presently in use.

Abstract: An x-ray window including at least one aluminum layer and at least one amorphous carbon layer. At least one polymer layer may also be included. Aluminum layer(s) can provide improved gas impermeability to the window. Amorphous carbon layer(s) can provide corrosion resistance. Polymer layer(s) can provide improved structural strength.

Abstract: The invention relates to an arrangement of a measuring window in a continuously operated X-ray analyzer (1), said analyzer being is used particularly for analyzing elemental contents in solid, liquid or slurry-like materials; which measuring window (2) separates the sampling space (3) containing the sample material to be measured and the measurement space (4) containing the measuring probe (11), and is sealed by a lid structure (6) arranged in the sampling space, said lid structure defining the measurement aperture (7) of the sampling space, in which case the lid structure defining the measurement aperture of the sampling space is provided with a sealing surface (8) of the measuring window, so that said surface is at least partly planar and at least partly curved.

Abstract: Composite x-ray transmissive windows. In one example embodiment, an x-ray transmissive window is configured to be positioned in an outer housing of an x-ray device. The x-ray transmissive window includes a composite material.

Abstract: X-Ray Radiation Passage Window for a Radiation Detector An X-ray radiation passage window can be used for a radiation detector. The X-ray radiation passage window for a radiation detector includes a radiation-transmissive window element. The radiation-transmissive window element contains graphene. Furthermore, a radiation detector including an X-ray radiation passage window, a method for producing an X-ray radiation passage window and a use of graphene are disclosed.

Abstract: An apparatus is disclosed for the examination and inspection of integrated devices such as integrated circuits. X-rays are transmitted through the integrated device, and are incident on a photoemissive structure that absorbs x-rays and emits electrons. The electrons emitted by the photoemissive structure are shaped by an electron optical system to form a magnified image of the emitted electrons on a detector. This magnified image is then recorded and processed. In some embodiments, the integrated device and photoemissive structure are independently mounted and controlled. In other embodiments, the photoemissive device is deposited directly onto the integrated device. In some embodiments, the incidence angle of the x-rays is varied to allow internal three-dimensional structures of the integrated device to be determined. In other embodiments, the recorded image is compared with a reference data to enable inspection for manufacturing quality control.

Abstract: Provided is a radiation generating apparatus, including: a radiation generating unit for emitting radiation; and a movable diaphragm unit including a light projecting/sighting system for making a simulation display of a radiation field with visible light. The light projecting/sighting system includes: a light source of the visible light; a light guiding plate that is provided across a radiation axis, and causes the visible light from the light source to exit from a front surface of the light guiding plate; and a louver that gives directivity to the visible light exiting from the front surface of the light guiding plate.

Abstract: The invention concerns a radiation entry window (10) for a radiation detector (2), in particular for a semiconductor drift detector (2), with a flat window element (11), which is at least partially permeable for the radiation to be detected by the radiation detector (2), as well as with a window frame (12), which laterally frames the window element (11), wherein the window frame (12) consists of a semiconductor material and is considerably thicker than the window element (11).

Abstract: Provided is a radiation generating apparatus, including a radiation generating unit for emitting radiation through a transmission window, and a light projecting/sighting device including a light source for emitting visible light and a reflection mirror. At least one of the transmission window and the reflection mirror has variations in thickness for reducing shading of radiation which irradiates a radiation irradiation field.

Abstract: A high strength carbon fiber composite (CFC) wafer, and method of making such wafer, with low surface roughness comprising at least one sheet of CFC including carbon fibers embedded in a matrix. The wafer can have a thickness of between 10-500 micrometers. The wafer can have a root mean square surface roughness Rq, on at least one side, of less than 300 nm in an area of 100 micrometers by 100 micrometers and less than 500 nm along a line of 2 millimeter length. The wafer may be cut to form x-ray window support structures, MEMS, or other micrometer sized structures.

Abstract: The present invention relates to X-ray differential phase-contrast imaging, in particular to a deflection device for X-ray differential phase-contrast imaging. In order to provide differential phase-contrast imaging with improved dose efficiency, a deflection device (28) for X-ray differential phase-contrast imaging is provided, comprising a deflection structure (41) with a first plurality (44) of first areas (46), and a second plurality (48) of second areas (50). The first areas are provided to change the phase and/or amplitude of an X-ray radiation; and wherein the second areas are X-ray transparent. The first and second areas are arranged periodically such that, in the cross section, the deflection structure is provided with a profile arranged such that the second areas are provided in form of groove-like recesses (54) formed between first areas provided as projections (56). The adjacent projections form respective side surfaces (58) partly enclosing the respective recess arranged in between.

Abstract: A radiation detector assembly and a method for using the same are provided. The radiation detector assembly includes an aperture, a window covering the aperture, the window is configured to permit radiation to pass through, the window is configured to prevent the passage of fluids and particles through the aperture, and a protective device covers the window. The protective device includes a plurality of holes at least partially aligned with the aperture, is configured to permit at least some radiation to pass through the holes, is configured to prevent objects larger than the holes to contact the window and is configured to withstand external forces and prevent those forces from damaging the window.

Abstract: An X-ray window including a primary and a secondary window element. In order to evaporate debris by ohmic heating, current flows through the secondary (upstream) window element. Meanwhile, electric charge originating from electron irradiation and/or depositing charged particles is to be drained off the window element. To prevent large debris particles from short-circuiting the window element and changing the desired heating pattern, the current for heating the window element flows through a layer which is insulated from the charge-drain layer.

Abstract: An x-ray window comprising a plurality of thin film layers stacked together, including a thin film layer and a polymer layer. The thin film layer can be diamond, graphene, diamond-like carbon, beryllium, and combinations thereof. The polymer layer can be a polyimide. A boron hydride layer may also be included.

Abstract: A radiation window membrane and for covering an opening in an X-ray device is presented, as well a method for its manufacturing. Said openings are such through which X-rays are to pass. The membrane comprises a window base layer and a pinhole-blocking layer on a surface of said window base layer. Said pinhole-blocking layer comprises graphene.

Abstract: An x-ray window includes a mount with a support frame and an aperture. A window film has a stack of layers including: a thin film layer comprising a material selected from the group consisting of diamond, graphene, diamond-like carbon, beryllium, and combinations thereof; a boron hydride layer; and a polymer layer. The window film, including the thin film layer, the boron hydride layer, and the polymer layer, extends across the aperture and is supported by the support frame. The window film is attached to the support frame, defining a sealed joint. The layers are capable of withstanding a differential pressure of at least 1 atmosphere. The window film is substantially transmissive to x-rays having an energy in the range of 100-20,000 electronvolts.

Abstract: A radiation window foil for an X-ray radiation window comprises a mesh that defines a number of openings (902), said mesh having a first side surface (903) and a second side surface (904). A layer (906) spans said openings. Said layer (906) is on the first side of the mesh but spans said openings at a level closer to the second side surface (904) of the mesh than the first side surface (903) of the mesh.

Abstract: For manufacturing a radiation window for an X-ray measurement apparatus, and etch stop layer is first produced on a polished surface of a carrier. A thin film deposition technique is used to produce a structural layer on an opposite side of said etch stop layer than said carrier. The combined structure comprising said carrier, said etch stop layer, and said structural layer is attached to a region around an opening in a support structure with said structural layer facing said support structure. The carrier is etched away.

Abstract: A support structure for x-ray windows including carbon composite ribs, comprising carbon fibers in a matrix. The support structure can comprise a support frame defining a perimeter and an aperture, a plurality of ribs comprising a carbon composite material extending across the aperture of the support frame and carried by the support frame, and openings between the plurality of ribs. A film can be disposed over, carried by, and span the plurality of ribs and disposed over and span the openings.

Abstract: An x-ray window including a support frame with a perimeter and an aperture. A plurality of ribs can extend across the aperture of the support frame and can be supported or carried by the support frame. Openings exist between ribs to allow transmission of x-rays through such openings with no attenuation of x-rays by the ribs. A film can be disposed over and span the ribs and openings. The ribs can have at least two different cross-sectional sizes including at least one larger sized rib with a cross-sectional area that is at least 5% larger than a cross-sectional area of at least one smaller sized rib.

Abstract: An x-ray window comprising a plurality of thin film layers stacked together, including a thin film layer and a polymer layer. The thin film layer can be diamond, graphene, diamond-like carbon, beryllium, and combinations thereof. The polymer layer can be a polyimide. A boron hydride layer may also be included.

Abstract: A liquid-cooled aperture body in an x-ray tube. In one example embodiment, an x-ray tube is configured to be at least partially submerged in a liquid coolant. The x-ray tube includes a cathode at least partially positioned within a cathode housing, an anode at least partially positioned within a can, and an aperture body coupling the cathode housing to the can. The can is formed from a first material and the aperture body is formed from a second material. The aperture body defines an aperture through which electrons may pass between the cathode and the anode. The aperture body further defines at least two exterior surfaces that are each configured to be exposed to the liquid coolant in which the x-ray tube is at least partially submerged.

Abstract: A self-cleaning X-ray window arrangement is provided that includes a primary X-ray-transparent window element, separating an ambient pressure region from an intermediate region, and a secondary X-ray-transparent window element, separating the intermediate region from a reduced pressure region. A contaminant is expected to deposit on a side of the secondary element facing the reduced pressure region. A heat source is adapted to heat a portion of the secondary window element thereby evaporating contaminant. The secondary element shields the primary element from the reduced pressure region, in which contaminant is present, whereas the pressure-tight primary window element carries most of the differential pressure between the ambient pressure region and the reduced pressure region. Several features help to decrease the rate at which contaminant enters the intermediate region.

Abstract: A radiation window membrane and for covering an opening in an X-ray device is presented, as well a method for its manufacturing. Said openings are such through which X-rays are to pass. The membrane comprises a window base layer and a pinhole-blocking layer on a surface of said window base layer. Said pinhole-blocking layer comprises graphene.

Abstract: An X-ray generator having a housing and having components located inside the housing for generating one or more X-ray beams, wherein the housing is composed of a tube body that is made of ceramic.

Abstract: In one example, an x-ray tube includes an evacuated enclosure and an anode disposed with the evacuated enclosure. The anode is configured to receive electrons emitted by an electron emitter. The x-ray tube also includes an evacuated enclosure window disposed within a port of the evacuated enclosure. The evacuated enclosure window includes first and second axes, the first axis being relatively shorter than the second axis. The x-ray tube also includes means for directing coolant flow. The means for directing coolant flow causes coolant to flow across an exterior surface of the evacuated enclosure window in a direction substantially parallel to the first axis.

Abstract: A window arrangement on a pressure pipe, with a casing in the train or at the end of the pressure pipe, said casing featuring flanges on diametrically opposing sides having radially directed passages, whose axes are standing perpendicular to the longitudinal axis of the pressure pipe and are located in a measurement plane for an x-ray measurement device, an x-ray source being associated to the one passage on the outer side and a receiver sensitive to X-rays to the other passage, and with window plates that are transmissive for X-rays which are sealingly arranged in the associated passage and are fixed in the passage with the aid of a fastening member and which consist of a material which is resistant against high temperatures and process-due etchings by chemically aggressive substances.

Abstract: An x-ray tube includes a vacuum chamber, a cathode positioned within the vacuum chamber and configured to emit electrons, and an anode positioned within the vacuum chamber to receive the electrons emitted from the cathode and configured to generate a beam of x-rays from the electrons. The x-ray tube further includes a window positioned to pass the beam of x-rays therethrough, an electron collector structure having an aperture formed therein to allow passage of x-rays therethrough, and a layer attached to the electron collector structure and configured to at least partially absorb or reduce diffraction of x-rays that contact the layer.