Abstract:
A radioactive ray generating apparatus includes a second shielding member, a target, and a first shielding member, which are sequentially disposed from an electron emission source side. A shortest distance from a maximum radiation intensity portion of the target to the first shielding member is shorter than a shortest distance from the maximum radiation intensity portion of the target to the second shielding member.
Abstract:
A radioactive ray generating apparatus includes a second shielding member, a target, and a first shielding member, which are sequentially disposed from an electron emission source side. A shortest distance from a maximum radiation intensity portion of the target to the first shielding member is shorter than a shortest distance from the maximum radiation intensity portion of the target to the second shielding member.
Abstract:
An x-ray tube assembly includes an x-ray tube envelope, a cathode assembly and a transmission anode assembly. The transmission anode assembly includes an x-ray generation layer and an anode substrate. The x-ray generation layer may be annular and mounted on a rotating disc-shaped anode substrate or cylindrical and mounted on a rotating and/or oscillating cylindrical anode substrate.
Abstract:
An arrangement for generating X-ray radiation comprising an anode (9) formed as a part of a sphere. The arrangement further comprises at least one virtual focus element (4) which is adapted to emit generated photons to create the useful beam field. An arrangement according to the invention has a real focus which is larger than the previously known X-ray tubes and arrangements for generating X-ray with an inclined anode surface. Accordingly, an increased radiation amount per unit of time compared to previously known X-ray tubes is achieved by the arrangement according to the invention, provided that the acceleration voltage and the electron density for each anode surface unit are equal for both arrangements. The virtual focus element (4) can be adapted to a specific field of application. Time-and geometry-related imaging errors maybe avoided due to the high photon densityand a focus which can be adapted to the requirements.When generating usefulradiation using the arrangement according to the present invention, the photons are equally distributed in respect of mass and energy in the beam field, which makesit possible to achieve equivalent imaging conditions in theentire usefulbeam field.
Abstract:
A method for generating EUV light is disclosed which may include the acts / steps of providing a source material; generating a plurality of source material droplets; simultaneously irradiating a plurality of source material droplets with a first light pulse to create irradiated source material; and thereafter exposing the irradiated source material to a second light pulse to generate EUV light, e.g. by generating a plasma of the source material. In another aspect, an EUV light source may include a droplet generator delivering a plurality of source material droplets to a target volume; a source of a first light pulse for simultaneously irradiating a plurality of droplets in the target volume to produce an irradiated source material; and a source of a second light pulse for exposing the irradiated source material to generate EUV light. The droplet generator may comprise a non-modulating droplet generator and may comprise a multi-orifice nozzle.
Abstract:
Die Erfindung betrifft eine Anordnung (31) zur Erzeugung von elektromagnetischer Strahlung, insbesondere von Röntgenstrahlung oder extremer Ultraviolett-Strahlung, mit einem Target (5), in dem beim Betrieb der Anordnung durch auftreffende Teilchen die Strahlung erzeugt wird, einer Basis (7), wobei die Basis (7) an einer ersten Seite der Basis mit dem Target (5) verbunden ist, einer Leitung für Kühlflüssigkeit, um beim Betrieb der Anordnung das Target (5) zu kühlen, wobei die Leitung einen Basis-Leitungsabschnitt aufweist, der sich entlang einer der ersten Seite der Basis (7) gegenüberliegenden zweiten Seite der Basis (7) erstreckt.
Abstract:
A method for generating x-ray radiation, comprising the steps of forming a target jet by urging a liquid substance under pressure through an outlet opening, the target jet propagating through an area of interaction; and directing at least one electron beam onto the target jet in the area of interaction such that the electron beam interacts with the target jet to generate x-ray radiation; wherein the full width at half maximum of the electron beam in the transverse direction of the target jet is about 50% or less of the target jet transverse dimension. A system for carrying out the method is also disclosed.