摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
X-ray tube (11/12) for high dose rates, a corresponding method for generating high dose rates with X-ray tubes (11/12) as well as a method for producing corresponding X-ray devices (11/12), in which an anode (31/32) and a cathode (21/22) are disposed opposite each other in a vacuumized internal chamber (41/42), electrons e− being accelerated to the anode (31/32) by means of impressible high voltage. The anode (31/32) 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 (γ) with cooling. The cathode (21/22) comprises a substrate substantially transparent for X-ray radiation (γ). In particular, the likewise substantially transparent for X-ray radiation (γ). In particular, the cathode (31/32) can close off the vacummized internal chamber (41/42) toward the outside.
摘要:
An electron beam device has a body provided with an exit window, said body is forming or is at least partly forming a vacuum chamber, the vacuum chamber comprising therein a cathode housing and at least one electron generating filament. At least one getter sheet is provided between the cathode housing and the filament. The invention is further comprising a getter sheet for use in an electron beam device and a method of manufacturing an electron beam device comprising at least one getter sheet.
摘要:
An X-ray emitter is suitable for evenly sterilizing large volumes of material in a short time, the emitter having an elongated X-ray target window and correspondingly elongated electron source mounted in a vacuum chamber. The electrons from the electron source are accelerated towards the X-ray target window, which generates X-rays directed outward from the vacuum chamber when irradiated by electrons from within the vacuum chamber. The elongated form of the electron source ensures that an evenly distributed beam of electrons, with a substantially constant linear distribution over the length of the electron source, arrives at the elongated X-ray target window such that a correspondingly even distribution of X-rays is generated from the X-ray target window. The X-ray target window includes a support substrate, and carries an X-ray target layer made of a target material such as tantalum or tungsten on its inner surface. A process for manufacturing the X-ray emitter is also described.
摘要:
An electron beam device has a body provided with an exit window, said body is forming or is at least partly forming a vacuum chamber, the vacuum chamber comprising therein a cathode housing and at least one electron generating filament. At least one getter sheet is provided between the cathode housing and the filament. The invention is further comprising a getter sheet for use in an electron beam device and a method of manufacturing an electron beam device comprising at least one getter sheet.
摘要:
The invention relates to an X-ray tube (11/12) for high dosing performances, a corresponding method for the production of high dosing performances with X-ray tubes (11/12) and method for the production of corresponding X-ray devices (11/12), wherein an anode (31/32) and a cathode (21/22) are arranged opposite each other in a vacuumed internal chamber (41/42). Electrons (e−) are accelerated by means of high voltage which can be applied to the anode (31/32). The anode (31/32) is made of a metal layer having a high ordinal number which is used to convert the electrons (e−) into X-ray radiation (Y) with the aid of a coolant. The cathode (21/22) comprises an essentially transparent carrier material for X-ray radiation (Y) and an essentially transparent electron emitter layer for X-ray radiation (Y). According to the invention, the cathode (31/32) can, in particular, close the vacuumed internal chamber (41/42) from the outside.
摘要:
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.