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Matches 301 - 350 out of 8,036

Document Document Title
WO/2015/040830A1
The present invention relates to an X-ray mammography system including an X-ray detecting unit and an X-ray generating unit. The X-ray detecting unit includes a detecting portion that detects X-rays that have passed through a breast. The...  
WO/2015/034791A1
Disclosed are targets for generating x-rays using electron beams and their method of fabrication. They comprise a number of microstructures fabricated from an x-ray target material arranged in close thermal contact with a substrate such ...  
WO/2015/032664A1
Rotating anode X-ray tubes degrade over time because of the action of the electron beam altering the surface of the focal spot area of a rotating anode. This causes a degradation in a resulting object image, when the source is used in an...  
WO/2015/016019A1
The purpose of the present invention is to provide a target for x-ray generation for causing x-rays having different resolutions to be generated. Provided is a target for x-ray generation that is characterized by comprising the following...  
WO/2015/011111A1
A differential phase contrast imaging (DPCI) apparatus and an anode for an X-ray tube of such DPCI apparatus are proposed. The anode (39) comprises a rotatable anode disk (41) with a focal track region (51) close to a circumference (59) ...  
WO/2015/009457A1
A cathode assembly is for use in a radiation generator and includes an ohmically heated cathode, and a support having formed therein a hole and a recess at least partially surrounding the hole. In addition, there is a mount coupled to th...  
WO/2015/004732A1
In this X-ray tube device, a flat plate filament (11) is provided with full-glow electric heating legs (12,13) and half-glow electric heating legs (14,15), the full-glow electric heating legs (12,13) being electrically connected to a pow...  
WO/2015/003886A1
The present invention relates to mounting of an anode disk. In order to provide a mount of an anode disk to a rotating shaft that is suitable for increased thermal loads on the anode disk, a rotating anode assembly (10) is provided that ...  
WO/2014/209158A1
A multibeam x-ray tube (1) for scanning a stationary object (13) in intersecting directions while in a static position, containing, positioned in a grounded housing (2): a rotating anode (3) having a flat annular target (4) positioned...  
WO/2014/205429A1
A gas bearing assembly including: a stator, a spindle rotatable about an axis, a first space between the spindle and the stator and arranged to receive a bearing gas at a first pressure, to support rotation of the spindle about the axis,...  
WO/2014/197023A2
A device for producing x-rays includes: a housing that includes a folded high-voltage multiplier coupled to a filament transformer, the transformer coupled to an x-ray tube for producing the x-rays. A method of fabrication and an x-ray s...  
WO/2014/187586A1
The invention relates to an X-ray source (1) having an outer housing (3) that can be evacuated, comprising at least one radiation exit window (5), an electron source (7) for emitting an electron beam and an anode (13) for producing X-ray...  
WO/2014/188176A1
An X-ray source comprising: an elongate tubular housing adapted to be fitted Into a port of and extend into a chamber containing a sample to be analysed, said housing containing: an electron gun and a target mounted in the housing, the e...  
WO/2014/132049A3
An X-ray source for producing soft X-rays, the X-ray source comprising: a cathode (1) having an electron-emitting structure supported by a support structure (15), the electron-emitting structure being at least partially transparent to X-...  
WO/2014/180177A1
Graphene serving as the cathode of an X-ray tube, and a high-efficiency graphene cathode field emission X-ray tube. The graphene cathode field emission X-ray tube comprises a cathode assembly, an anode assembly and a vacuum glass tube, w...  
WO/2014/177308A1
The invention relates to an X-ray source (1) comprising an evacuable outer housing (3) having at least one X-ray-permeable beam exit window (5), an electron source (7), an anode (13) and a collector (19) for catching electrons which pene...  
WO/2014/179792A1
A mechanism for cooling the anode of an x-ray tube using a phase change material to transfer heat away from the anode. The x-ray tube is joined to a sealed heat exchange chamber which contains a liquid metal as a liquid to vapor phase ch...  
WO/2014/172936A1
An X-ray tube based on thermal emission of a LaB6 nanomaterial, and a movable CT scanner. The X-ray tube based on thermal emission of a LaB6 nanomaterial comprises anode (10), a cathode (11), and a tube case (12). The tube case (12) is u...  
WO/2014/172942A1
An X-ray tube based on field emission of a LaB6 nanomaterial, and a movable CT scanner. The X-ray tube comprises an anode (1) and a cathode (2). The cathode (2) comprises a LaB6 sharp cone field emission array, and electrons generated by...  
WO/2014/172932A1
An X-ray source for a medical detection, and a movable CT scanner. The X-ray source for a medical detection comprises an X-ray tube and a high-voltage generator. The X-ray tube comprises an anode (1), a cold cathode (2), a gate (3), and ...  
WO/2014/172931A1
A carbon nanotube-based X-ray tube and a movable CT scanner. The carbon nanotube-based X-ray tube comprises an anode (1) and a carbon nanotube cathode (2). Electrons generated by field emission of the carbon nanotube cathode (2) under th...  
WO/2014/140099A3
Disclosed herein are a high-voltage generator (120) for an x-ray source, an x-ray gun, an electron beam apparatus, a rotary vacuum seal, a target assembly for an x-ray source, a rotary x-ray emission target (500), and an x-ray source. Th...  
WO/2014/175762A1
The invention relates to a device (1) and a method for X-ray generation, the device (1) comprising an electron emitter (2) for generating an electron beam (3). An accelerator (4) accelerates the electrons of the electron beam (3) and ...  
WO/2014/171234A1
In order to provide an X-ray tube device having a configuration which is capable of shielding X-rays without reducing cooling efficiency and provide an X-ray imaging device in which the X-ray tube device is installed, a device is equippe...  
WO/2014/166468A1
The aim of the invention is to provide an arrangement for an electron beam x-ray computer tomography, said arrangement making do without the considerable axial extension of the electron emitter and largely omitting electron-optical beam ...  
WO/2014/143694A1
An x-ray device utilizes a band of material to exchange charge through tribocharging within a chamber maintained at low fluid pressure. The charge is utilized to generate x-rays within the housing, which may pass through a window of the ...  
WO/2014/140099A2
Disclosed herein are a high-voltage generator for an x-ray source, an x-ray gun, an electron beam apparatus, a rotary vacuum seal, a target assembly for an x-ray source, a rotary x-ray emission target, and an x-ray source. These various ...  
WO/2014/143718A1
An x-ray emission device comprises a housing configured to maintain a low fluid environment, the housing having a first wall with a window substantially transparent to x-rays and a second wall having a portion comprising an exterior surf...  
WO/2014/068434A3
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 (29-1, 29-2) on the inner wall or the b...  
WO/2014/138247A1
Cathode assembly for a long throw length x-ray tube. In one example embodiment, a cathode assembly (200) for an x-ray tube includes an electron emitter (122), an acceleration region (126), and a drift region (124). The electron emitter i...  
WO/2014/134644A1
The present invention relates to a filament, particularly an x-ray cathode filament (2), having at least one emitter or heating filament (4) made from a W-based material with projecting wire end sections (6, 8) and mounting pins (12, 14)...  
WO/2014/137163A1
The present invention relates to an optical ioniser. The optical ioniser comprises: an X-ray tube which generates electrons on the inside of a tube, and in which the electrons are pulled by means of the potential difference of a cathode ...  
WO/2014/132049A2
An X-ray source for producing soft X-rays, the X-ray source comprising: a cathode having an electron-emitting structure supported by a support structure, the electron-emitting structure being at least partially transparent to X-rays with...  
WO/2014/133797A1
A sealed cold cathode X-ray tube for use in small X-ray source devices is provided. In one embodiment, a scaled cold cathode X-ray tube includes an elongate member, a cathode emitter, and an anode. The sealed cold cathode X-ray tube is f...  
WO/2014/125702A1
In a rotating envelope X-ray tube device (1), a negative electrode (5) releases electrons, and the electrons released from the negative electrode (5) are deflected by a deflection coil (6). The electrons deflected by the deflection coil ...  
WO/2014/125389A1
The present invention relates to the generation of multiple X-ray beams (26). In order to provide a facilitated X-ray source with the capability of increased tube power for providing coherent radiation, for example in differential phase ...  
WO/2014/123835A1
There is provided an x-ray source (10) comprising: an enclosure body (12); a target (14) permanently fixed to or forming part of the enclosure body (12); an electron beam source within the enclosure body (12), the electron beam source (1...  
WO/2014/119079A1
Provided is an X-ray radiation source (2) in which, among the wall sections of a housing (51) for an X-ray tube (21), facing wall sections (51b) formed from alkali-containing glass are arranged to face a high-voltage area (VH) of a power...  
WO/2014/119080A1
Provided is an X-ray radiation source (2) in which, among the wall sections of a housing (51) for an X-ray tube (21), facing wall sections (51b) formed from alkali-containing glass are sandwiched by a filament (52) and an electric field ...  
WO/2014/101599A1
A device and a method for generating distributed X rays. Electron beams with an initial kinergety and a motion speed are generated in a vacuum by using a hot cathode, and the initial low-energy electron beams are periodically scanned to ...  
WO/2014/101283A1
A cathode-controlled multi-cathode distributed X-ray device, comprising: a vacuum box (4) being peripherally sealed and being highly vacuum inside; a plurality of cathodes (1) independent of one another and arranged at one end within the...  
WO/2014/097092A1
The present invention relates to spiral groove bearings. In order to provide a spiral groove bearing with enhanced efficiency, for example with reduced weight and increase of load bearing capacity at nominal operation frequency, a spiral...  
WO/2014/097084A1
The present invention relates to the adjustment of an X-ray tube. In order to provide a facilitated assembling process of an X-ray imaging system with respect to alignment requirements, an X-ray tube housing assembly (10) is provided, co...  
WO/2013/111255A9
Provided are a radiation discharge target and a radiation emission device whereby adhesion of a layered radiation target is stabilized, output fluctuations associated with operating temperature histories are alleviated, and a stable radi...  
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...  

Matches 301 - 350 out of 8,036