Abstract:
An electron accelerator includes a vacuum chamber having an electron beam exit window. An electron generator is positioned within the vacuum chamber for generating electrons. A housing surrounds the electron generator and has a first series of openings formed in the housing between the electron generator and the exit window for allowing electrons to accelerate from the electron generator out the exit window in an electron beam when a voltage potential is applied between the housing and the exit window. The housing also has a second series and third series of openings formed in the housing on opposite sides of the electron generator for causing electrons to be uniformly distributed across the electron beam by flattening electrical field lines between the electron generator and the exit window.
Abstract:
The device shields from X-radiation produced by electron bombardment of printed inks on a paper sheet in an apparatus including a press device, an electron bombardment device following the press device and a conveying device conveying the paper sheet from the press device through the electron bombardment device to the conveying device. To prevent smearing and double images on the paper sheet the device includes an upstream shielding duct device extending between the press device and the electron bombardment device through which the paper sheet is conveyed; a downstream shielding duct device extending between the electron bombardment device and the downstream conveying device through which the paper sheet is conveyed; a mechanism for contactless transport of the paper sheet from the press device, through the shielding duct devices and the electron bombardment device and to the conveying device; shielding components for shielding from X-radiation provided in press device; and shielding components for shielding against X-radiation provided in the downstream conveying device. Advantageously the upstream and downstream shielding duct devices extend into the press device and the conveying device respectively and the entrance of the upstream shielding duct device is adjacent and close to a contact surface of a press cylinder of the press device.
Abstract:
The invention concerns a device for creating an electron curtain (5). The device consists of a cylindrical chamber (1) in which has been accommodated an elongated, electron-emitting filament (2) and a shell (3) encircling the filament so that the filament is located in an elongated depression (6) formed by the shell. Furthermore, the device comprises members (7) for accelerating the electrons and a window (4) in the wall of the chamber (1), through which the electron curtain can be directed to the outside of the device. The shell (3) encircling the filament (2) has on both margins of the depression (6) been shaped into an accelerating electrode (7) which can be brought to a negative potential with reference to the wall of the chamber (1), and the depression constitutes a diffusion volume for the electrons emitted from the filament and in the region of which there are mouldable parts, such as the accelerating electrodes (7) or the additional electrodes (9) on the bottom of the depression, by the aid of which the admission of electrons into the accelerating electric field and thereby the intensity of the electron curtain (5) that is produced are adjustable. Owing to the diffusion of electrons, it is possible with the means to produce an electron curtain with uniform intensity, and by suitably shaping the parts (7,9), the intensity distribution of the curtain may be adjusted in desired manner.
Abstract:
A charged particle accelerator vacuum chamber comprises an exit window adapted for extracting charged particles into the atmosphere, having at least one foil (1) secured in a frame (2), and guide slots (4) provided along a longer side of the exit window, the frame (2) being inserted into said slots (4).
Abstract:
A flexible ion generator device that includes a dielectric layer having a first end, a second end, a first side, a second side, a top side, and a bottom side, at least one trace positioned on the dielectric layer and having a plurality of emitters engaged to the at least one trace. A plurality of lights disposed on the dielectric layer.
Abstract:
The present invention provides methods and systems for the flexible ion generation device includes at least one dielectric layer, at least one trace having a first end and a second end, the at least one trace is engaged to the at least one dielectric layer, and at least one emitter engaged to the trace for emitting ions.
Abstract:
The present invention provides methods and systems for the flexible ion generation device includes at least one dielectric layer, at least one trace having a first end and a second end, the at least one trace is engaged to the at least one dielectric layer, and at least one emitter engaged to the trace for emitting ions.
Abstract:
A cathode-housing suspension of an electron beam device having a tubular body of elongate shape with an exit window extending in the longitudinal direction and a connector end in one end of the tubular body is disclosed. The electron beam device further comprises a cathode housing having an elongate shape and comprising a free end and an attachment end remote to the free end, and the attachment end comprises an outwardly extending flange provided with threaded openings for set screws and non-threaded openings for attachment bolts, for attaching the attachment end to a corresponding socket of the tubular body, wherein a mechanism configured to bias the attachment end away from the socket are arranged in the tubular body.
Abstract:
An apparatus and a method of sterilizing inner walls of containers, wherein the apparatus has at least one electron beam emitter with at least one electron beam accelerator and an outlet window for the electron beams, a conveying device for conveying the containers to be sterilized and a reciprocating device for permitting a relative movement between the containers and the outlet window in a longitudinal direction of the containers. A reflector apparatus is connected to the electron beam emitter in a positively locking and/or friction locking manner at least locally in a region of the outlet window and is capable of being introduced at least locally during a defined period of time into an interior space of the container to be sterilized, in order to apply the electron beams to the inner walls of the container.
Abstract:
The invention relates to a control grid for an electron beam generating device, wherein the control grid comprises apertures arranged in rows in a width direction and columns in a height direction, wherein a majority of the apertures in a row have the same size, and wherein the size of the apertures of at least one row differs from the size of the apertures of another row.