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Matches 301 - 350 out of 7,895

Document Document Title
WO/2014/091195A1
An apparatus comprises a charged particle beam source and a target (1) for a charged particle beam. The target comprises a concave outer surface which is at least a segment of a cylinder (2) having a periodically structured surface (4). ...  
WO/2014/076886A1
The present invention relates to a transmission type target having a diamond base material as the transmissive base material. The transmission type target can inhibit the composition from varying with the drive history of the transmissio...  
WO/2014/075664A1
The invention relates to a bearing unit (1) for rotary anodes of x-ray tubes, comprising a shaft (2) and a flange element (3) to which a rotary anode can be attached, wherein: the bearing unit (1) can be inserted into a cutout within the...  
WO/2014/073810A1
The present invention relates to an optical ionizer. Such an optical ionizer comprises: an X-ray tube receiving an external voltage, using an electron potential difference to attract electrons, and using electron collision to emit X-rays...  
WO/2014/068434A2
The invention relates to effective charged particle optical elements which enable a reduced outer diameter of the optical column. The electron optical lenses are formed with high-resistive coatings on the inner wall or the bore of the ch...  
WO/2014/065284A1
The present invention utilizes sunlight to generate a potential difference across a ferroelectric body. Sunlight is passed through a wavelength-selection filter that selectively passes ultraviolet light that does not pass through the fer...  
WO/2014/064748A1
An X-ray tube device (100) according to the present invention comprises: a cathode (1) for generating an electron beam; an anode (2) for generating an X-ray by the electron beam from the cathode impinging thereon; an enclosure (3) for ho...  
WO/2014/061340A1
A rotary anode X-ray tube (2) in this rotary anode X-ray tube device (1) is characterized in having: an anode member (4) that is irradiated by an electron beam emitted from a cathode member (3) and thereby caused to generate X-rays; a ro...  
WO/2014/059139A1
In one example embodiment, an anode suitable for use in an x-ray tube includes a hub, a front side, and a target surface disposed on the front side. The hub is configured to attach to a bearing assembly and the front side substantially f...  
WO/2014/058501A1
According to various aspects, exemplary embodiments are disclosed of systems that may be used for cooling X-ray tubes and detectors. Also disclosed are exemplary embodiments of methods for cooling X-ray tubes and detectors. For example, ...  
WO/2014/057400A1
The present invention relates to a radiographic imaging apparatus and a corresponding radiographic imaging method. The proposed apparatus comprises an X-ray source (20, 108) and a photon counting X-ray detector (40, 110). The X-ray sourc...  
WO/2014/054497A1
This method for manufacturing a target for x-ray generation is characterized by including an addition step in which a metal precursor for a metal that forms material for a target for x-ray generation is added to a supercritical fluid and...  
WO/2014/048748A1
The invention relates to a method for automatically stipulating a spectral distribution of the X‑ray radiation (R1, R2) of a number of X‑ray sources (100a, 100b) of a computed tomography system (10). This involves firstly stipulating...  
WO/2012/021809A3
A modular beam-limiting device (17) for use with an x-ray machine (15) includes a base portion (30) and an attachment portion (32). The base portion (30) includes at least one magnet (36). The attachment portion (32) includes at least on...  
WO/2014/044567A1
A device (700) for producing x-ray radiation comprises an anode (500) with a target layer (510), a cathode (200) for emitting an electron beam (210), a deflection unit (300) for deflecting the electron beam onto the target layer by means...  
WO/2014/044316A1
An anode for generating X-radiation has a holder and a target layer held by said holder, said target layer comprising a middle section and an edge section. The anode is provided for being exposed to an electron beam directed at the middl...  
WO/2014/041639A1
This X-ray tube device (100) is provided with a positive electrode (2), and a negative electrode (1) including an emitter (10) for emitting electrons at the positive electrode. The emitter includes: a flat-plate-shaped electron emission ...  
WO/2014/034632A1
An objective of the present invention is to provide a pre-stress structure in a rotating anode x-ray tube device whereby no delay is present, and no excessive load is incurred, due to necessary pre-loading, which is to say, thermal condu...  
WO/2014/034912A1
The present invention reduces partial damage to an anode. A cathode (132) generates thermoelectrons. An anode (134) generates X-rays upon receiving the thermoelectrons generated from the cathode (132). A supporting mechanism (137) rotata...  
WO/2014/036225A1
A system provided for delivering Accelerated Partial Breast Irradiation (APBI) and for delivering a boost to standard whole-breast irradiation (WBI) for the treatment of breast cancer that significantly reduces the risks of adverse cosme...  
WO/2014/029900A1
A radiation window foil is provided for an X-ray radiation window. It comprises a continuous window layer with a first side and a second side. A first mesh or grid layer is stacked on or bonded to said first side of said continuous windo...  
WO/2014/027624A1
In a method for manufacturing a target for X-ray emission, a bottomed hole is formed in a substrate (S102). In the method for manufacturing a target for X-ray emission, subsequently, the position where an ion beam is irradiated is aligne...  
WO/2013/184213A3
An x-ray source for use in Phase Contrast Imaging is disclosed. In particular, the x-ray source includes a cathode array of individually controlled field-emission electron guns. The field emission guns include very small diameter tips ca...  
WO/2014/020589A1
A movable device holds a radiation protection drape for reducing exposure and protecting medical personnel from hazardous X-ray radiation scattered by the patient during fluoroscopy. The device enables positioning an X-ray opaque drape s...  
WO/2014/017766A1
A digital X-ray source is disclosed. The device is an X-ray source comprising an X-ray generation unit for emitting X-rays, the X-ray generation unit comprising: a cathode electrode; an emitter formed on the cathode electrode; an anode e...  
WO/2014/008935A1
A device for generating X-rays or electron beams is described. The cathode of the device is mounted on a ceramic insulator which becomes hot during operation, and the ceramic insulator is cooled by means of a fluid coolant flowing around...  
WO/2014/009034A1
The invention relates to a rotary anode arrangement with a rotary anode (104), a rotor (143) for driving the rotary anode (104) and a stator (105), which exerts a torque on the rotor (143). The stator (105) comprises at least one coil (1...  
WO/2014/009848A1
A method for treating a surface layer (3) of a device (1) consisting of alumina and a corresponding device (1) are proposed. The method comprises providing the device (1) with the surface layer (3) to be treated being exposed and heating...  
WO/2014/007167A1
Provided is an x-ray tube capable of easily and stably performing a focus dimension variable control and a tube current control. The x-ray tube is equipped with a cathode (10) having a filament (11) and a trench portion (16) in which the...  
WO/2013/189713A1
The invention relates to a method for producing a rotary anode (10) for an x-ray tube, wherein a main part (12) is made of a ceramic based on silicon carbide and is provided with a tungsten focal track (14). An intermediate layer (16) is...  
WO/2013/163450A3
A field emission device is configured as a heat engine, wherein the configuration of the heat engine is variable as a function of time.  
WO/2013/185824A1
The invention relates to a spark gap comprising a cathode (12) and an anode (11). According to the invention, said spark gap is divided into two partial spark gaps by means of a central piece (13), namely a high-pressure spark gap (14) a...  
WO/2013/185827A1
The invention relates to an x-ray source in which, in particular, monochromatic x-rays can be produced. The invention also relates to a method for producing X-rays and to the use of the x-ray source for x-raying bodies (for example human...  
WO/2013/185823A1
The invention relates to an x-ray source in which, in particular, monochromatic x-rays can be produced. The invention also relates to a method for producing X-rays and to the use of the x-ray source for x-raying bodies. According to the ...  
WO/2013/185826A1
The invention relates to a x-ray radiation source comprising a housing (19), in which, according to the invention, several targets (11) are accommodated in a changing device (39), which has for example a rotary table (40). By rotating th...  
WO/2013/185829A1
In an electron irradiation system (1), a gas-tight housing (60) encloses a cathode region (10) and an irradiation region (20), which communicate through at least an aperture (22). In the cathode region, there is arranged a high-voltage c...  
WO/2013/185840A1
The invention relates to an x-ray source comprising a housing (11), in which according to the invention a target in the form of an ionized cloud (12) based on metal vapour is provided. Said cloud can be excited by means of an electron be...  
WO/2013/178251A1
An X-ray window comprises a primary (22) and a secondary window element (72, 74, 76). In order to evaporate debris by ohmic heating, current flows through the secondary (upstream) window element. Meanwhile, electric charge originating fr...  
WO/2013/144771A3
The present invention relates to simulated spatial live viewing of an object. In order to provide spatial information to the user with reduced requirements concerning to maintain a particular position e.g. with respect to a 3D display or...  
WO/2013/175329A1
The present invention relates to an X-ray tube with an active balancing arrangement. In order to provide improved balancing for a minimized imbalance during operation, an X-ray tube (10) with an active balancing arrangement (12) is provi...  
WO/2013/175335A1
The present invention relates to a rotor for an X-ray tube. In order to provide further possibilities for weight reduction in X-ray tubes for providing an increase of rotation frequency, a rotor (10) for an X-ray tube is provided, compri...  
WO/2013/174436A1
An Anode (30) for an X-ray tube (10) comprising at least a stem (29) for rotary supporting the anode (30) and a disc (34), being coaxially attached to the stem (29) and having a peripheral target area (32) as target for an electron beam ...  
WO/2013/175402A1
The present invention relates to a cathode for an X-ray tube, an X- ray tube, a system for X-ray imaging, and a method for an assembly of a cathode for an X-ray tube. In order to provide a cathode with an improved and facilitated assembl...  
WO/2013/174435A1
An X-ray tube (10) with an anode (30) comprising at least a rod shaped body with a front wall having target area (32) as target for an electron beam (27) on its frontal side permits a high intensity of X-ray radiation if the anode (30) h...  
WO/2013/175370A1
An apparatus (210) and method for total or partial blanking of an electron beam (e) during a jump between the 2 or more positions of a dynamic focal spot (FP) movement in circumferential direction of the electron beam impinging on the fo...  
WO/2013/171491A1
Radiotherapy apparatus comprising: a vacuum chamber (20) in which is provided an electron source (22) capable of emitting an electron beam; a radiation-generating target anode (27) capable of generating X-rays in response to the incidenc...  
WO/2013/170149A1
An electrically heated planar cathode for use in miniature x-ray tubes may be spiral design laser cut from a thin tantalum alloy ribbon foil (116) with grain stabilizing features. Bare ribbon is mounted to an aluminum nitride substrate (...  
WO/2013/168468A1
This X-ray generation device (1) is provided with: an electron gun section (3) that emits an electron beam (EB);, and a target section (T). Said target section (T) that comprises: a substrate (21) comprising diamond; and a target body (2...  
WO/2013/163256A1
An x-ray tube for generating a sweeping x-ray beam. A cathode is disposed within a vacuum enclosure and emits a beam of electrons attracted toward an anode. The anode is adapted for rotation with respect to the vacuum enclosure about an ...  
WO/2013/154259A1
Disclosed is a vacuum-sealed small X-ray tube using a carbon nanotube electron beam emitter. The vacuum-sealed small X-ray tube using a carbon nanotube electron beam emitter comprises: an electron beam generating unit having a cylindrica...  

Matches 301 - 350 out of 7,895