Abstract:
An x-ray window, which may be utilized within an x-ray source or an x-ray detector is disclosed, and a method for manufacturing the same. The x-ray window may be permeable to soft x-rays. The x-ray window may have at least one surface in contact with a pressure essentially equal that of a vacuum. The x-ray window may be multilayered with a thickness of less than or equal to one micron.
Abstract:
Electron beam emitter (20), in particular for sterilization of packaging material, comprising a housing (40) and an insert (60), wherein the housing (40) comprises a first annular channel (41) for guiding a medium, and wherein the first annular channel (41) at least partially surrounds the insert (60) and is adapted to provide the medium, characterized in that the first annular channel (41) is at least partly formed by the insert (60).
Abstract:
The present invention relates to a method of manufacturing a window transparent for electrons of an electron beam (E), in particular of an X-ray source. In order to enable a less costly and elaborate manufacture of such a window and in order to prevent unwanted sharp edges in a window area which may damage the window foil (2), a method is proposed comprising the steps of: -providing on a surface (11) of a carrier element (1) to which a window foil (2) shall be a fixed a receiving area (13, 16) for receiving a soldering material (3) used for fixing said window foil (2) to said carrier element (1), said carrier element (1) comprising a through hole (12) for the transmission of said electrons (E), -covering said surface (11) having said receiving area (13, 16) with a soldering material (3) such that substantially only said receiving area (13, 16) is filled with soldering material (3), -placing said window foil (2) on top of said surface (1) and -heating said soldering material (3) for fixing said window foil (2) to said surface (11).
Abstract:
It is disclosed a membrane (10) which is substantially transparent for particle beams or electromagnetic radiation, which is made from materials whose chemical elements primarily have a small atomic number, which is able to withstand pressure differences greater than 1 mbar, and which comprises at least one layer (17) having a high emissivity of electromagnetic radiation.
Abstract:
A radiation window device (10) to transmit radiation (11) as part of an x-ray source or detector (13) includes a support (14) to be subject to a substantial vacuum, and an opening (18) configured to transmit radiation. A film (22) is mounted directly on the support across the opening, and has a material and a thickness selected to transmit soft x-rays. An adhesive (26) directly adheres the film to the support. A coating (30, 34) covers exposed portions of at least one of the evacuated or ambient sides of the film, and covers a portion of the support surrounding the film. The support, film and adhesive form a vacuum tight assembly capable of maintaining the substantial vacuum when one side is subject to the substantial vacuum. In addition, the vacuum tight assembly can withstand a temperature of greater than approximately 250 degrees Celsius.
Abstract:
The invention concerns a composite diamond window (10) which includes a CVD diamond window pane (12) which is mounted to a CVD diamond window frame (14). The frame (14) is thicker than the pane (12) and has a radiation transmission aperture (16) therein across which the pane spans.
Abstract:
A vacuum tube electron beam device (15) includes a thin single crystal, electron permeable, gas impermeable membrane (20) for electron transmission. The single crystal membrane may include a small thickness due to high strength, and is highly transmissive to free the electrons due to the small thickness. The ordered crystalline structure of such membrane provides minimal obstructions to electron beams, and yet is highly impermeable to penetration by gas and liquid molecules. A doped silicon anode (19) can provide support for the membrane with matching thermal expansion characteristics, and a crystalline anode can be integral with the membrane. A double membrane embodiment confines the cooling fluid so that it passes close to both membranes.
Abstract:
Die Erfindung betrifft ein Strahlungseintrittsfenster (10) für einen Strahlungsdetektor (2), insbesondere für einen Halbleiterdriftdetektor (2), mit einem flachen Fensterelement (11), das für die von dem Strahlungsdetektor (2) zu detektierende Strahlung mindestens teilweise durchlässig ist, sowie mit einem das Fensterelement (11) seitlich einrahmenden Fensterrahmen (12), wobei der Fensterrahmen (12) aus einem Halbleitermaterial besteht und wesentlich dicker ist als das Fensterelement (11).
Abstract:
An exit window (15) can include an exit window foil (12), and a support grid (13) contacting and supporting the exit window foil. The support grid can have first and second grids (16, 18), each having respective first and second grid portions (16c, 18c) that are positioned in an alignment and thermally isolated from each other, The first and second grid portions can each have a series of apertures (16a, 18a) that are aligned for allowing the passage of a beam (14) therethrough to reach and pass through the exit window foil (12). The second grid portion (18c) can contact the exit window foil. The first grid portion (16c) can mask the second grid portion (18c) and the exit window foil (12) from heat caused by the beam striking the first grid portion (16e).
Abstract:
The present invention refers to a method for assembling an electron exit window of an electron beam generating device, comprising the steps of: arranging a foil support plate (208) on a housing of the electron beam generating device, bonding a window foil (206) to a frame (214) along at least one continuous bonding line (218), thus creating an exit window sub-assembly (216), and attaching the exit window sub-assembly (216) onto the housing. The invention also relates to an electron exit window assembly.