Tetra Laval Holdings & Finance S.a.

Comet Holding Ag

Kurt Holm

Anders Kristiansson

Werner Haag

Toni Waber

Luca Poppi

Lars-Åke Näslund

Benno Zigerlig

Mark Joachim Mildner

Adrian Riedo

Hans Hallstadius

Urs Hostettler

Lars Åke Näslund

Ulrika Linné

Lars-Ola Nilsson

Hans Vonäsch

Mattias Henriksson

Hans Reusser

An electron exit window foil for use with a high performance electron beam generator operating in a corrosive environment is provided. The electron exit window foil comprises a sandwich structure having a film of Ti, a first layer of a material having a higher thermal conductivity than Ti, and a flexible second layer of a material being able to protect said film from said corrosive environment, wherein the second layer is facing the corrosive environment.

Electron exit window foil

An electron beam device having a tubular body of elongate shape with an electron exit window extending in the longitudinal direction of the tubular body. The tubular body is at least partly forming a vacuum chamber, the vacuum chamber comprising therein a cathode comprising a cathode housing having an elongate shape, and at least one electron generating filament and a control grid both extending along the elongate shape of the cathode housing. The control grid and the cathode housing are attached to each other by attachment mechanisms. Free longitudinal end portions of either the control grid or the cathode housing are bent in a direction towards each other to form bulge-like shapes for the formation of electron beam shaping electrodes. The invention is further comprising a method of manufacturing the electron beam device.

Electron beam device for shaping an electric field and a method of manufacturing said electron beam device the same

The present invention refers to a method for arranging a window foil to an electron exit window assembly of an electron beam generating device, comprises the steps of: arranging a foil support plate on a housing of the electron beam generating device, bonding a window foil to the foil support plate along a continuous bonding line, attaching a skirt of said window foil extending radially outside of the bonding line to the housing along a continuous attachment line. The invention also relates to an electron exit window assembly of an electron beam generating device.

Method for assembling an electron exit window and an electron exit window assembly

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.

Assembly and method for reducing foil wrinkles

An electron beam sterilizing device, comprises: an electron-generating filament; a beam-shaper; an output window; a high-voltage supply, capable of creating a high-voltage potential between the electron-generating filament and the output window, for acceleration of electrons; a high-voltage supply for driving current through the electron-generating filament; a control unit for controlling the operation of the electron beam sterilizing device. The electron beam sterilizing device has at least three operational states which include: an OFF-state, where there is no drive current through the electron-generating filament; an ON-state, where the electron-generating filament is kept at a temperature above the emission temperature so as to generate electrons for sterilization; and a standby state, between the OFF-state and ON-state, where the electron-generating filament is kept at a predetermined temperature just below the emission temperature. The control unit controls the device to assume the standby state.

Control method for electron beam sterilizing device and device performing said method

In a high-voltage X-ray tube, which a cathode, which is held at negative high voltage during operating conditions, and an anode, which is held at positive high voltage during operating conditions, are disposed opposite each other in a vacuumized inner space, the anode being attached to an anode insulation element in such a way that the anode insulation element has a cylindrical shape or a shape tapering toward the anode and includes an opening to receive a high-voltage plug, and a pipe structure is provided by means of which a coolant is able to be supplied to the anode. This coolant can be in particular insulating oil or another electrically non-conducting liquid. The pipe structure can, for example, be integrated completely into the interior of the anode insulation element, but can also be integrated into the surface of the high-voltage plug. A solution is also possible in which the pipe structure is integrated into an intermediate element, which is situated between the anode insulation element and the high-voltage plug.

X-ray tube with an anode insulation element for liquid cooling and a receptacle for a high-voltage plug

A sensor is adapted to sense the intensity of an electron beam generated by an electron beam generator and exited from the generator through an exit window along a path towards a target within a target area. The sensor comprises at least one area of at least one conductive layer located within the path and connected to a current detector. The area, or areas, of the at least one conductive layer are shielded from the surrounding environment and from the exit window (and from one another when there are more than one area) by a shield. The shield is formed on the exit window. The sensor forms a part of a sensing system.

Sensor and system for sensing an electron beam

X-ray tube () for high dose rates, a corresponding method for generating high dose rates with X-ray tubes () as well as a method for producing corresponding X-ray devices (), in which an anode () and a cathode () are disposed opposite each other in a vacuumized internal chamber (), electrons e&#x2212; being accelerated to the anode () by means of impressible high voltage. The anode () is made of a layer or coating of a metal having a high atomic number, for conversion of the electrons (e) into X-ray radiation (&#x3b3;) with cooling. The cathode () comprises a substrate substantially transparent for X-ray radiation (&#x3b3;). In particular, the likewise substantially transparent for X-ray radiation (&#x3b3;). In particular, the cathode () can close off the vacummized internal chamber () toward the outside.

X-ray tube for high dose rates, method of generating high dose rates with X-ray tubes and a method of producing corresponding X-ray devices

Modular X-ray tube () and method for the production of such an X-ray tube, in which an anode () and a cathode () are arranged in a vacuumized inner space () situated opposite each other, electrons (e) being produced at the cathode () and X-rays (y) at the anode (). The X-ray tube () according to the invention comprises a multiplicity of acceleration modules (), complementing one another, and each acceleration module () comprises at least one potential-carrying acceleration electrode (). A first acceleration module () thereby comprises the cathode (), a second acceleration module () the anode (). The X-ray tube () further comprises at least one other acceleration module (). In particular, the X-ray tube according to the invention can possess a re-closeable vacuum valve, enabling individual defective parts of the tube () to be replaced in a simple manner or enabling the tube () to be modified in a modular way.

Modular X-ray tube and method of production thereof

High voltage vacuum tube () with an anode () and a cathode (), the anode () and/or the cathode () being electrically insulted by means of an annular insulator (). The annular insulator () is designed arched once, humped in direction of the vacuumized inner space (), the arch having in the direction of the vacuumized inner space () a sloping front area () and two lateral areas (). The sloping front area () of the insulator () of the anode () slopes toward the disc center () of the insulator (), while the sloping front area () of the insulator () of the cathode () slopes away from the disc center () of the insulator ().

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Baden, Switzerland

Kurt Holm