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Patent Searching and Data


Matches 651 - 700 out of 7,895

Document Document Title
WO/2008/060775A3
The present invention is directed to an improved process for manufacturing a rotary anode for an x-ray tube, said rotary anode comprising a molybdenum support member on which a target layer consisting essentially of tungsten or a tungste...  
WO/2004/066335A3
An x-ray source includes a carbon nanotube FE (field emission) cathode that is heated with laser light propagated down a fiber optic cable. The resulting two-terminal x-ray tube allows for independent control of tube voltage and tube cur...  
WO/2008/047269A3
It is described an emitter (26, 40) for X-ray tubes comprising: a flat foil with an emitting section (30, 46); and at least two electrically conductive fixing sections (31-34; 41-44); wherein the emitting section (30, 46) is unstructured.  
WO/2008/061076A3
An improved bearing assembly (100) incorporating a bearing sub-assembly (108) having a tapered bearing outer diameter (114) and an associated tapered receiving sleeve (106) for installation within a housing bore (102). The bearing sub-as...  
WO/2008/094539A2
This invention involves the application of dense, metallurgically bonded deposits of tungsten and tungsten rhenium coatings onto preformed based x-ray anodes to be used as focal tracks. The coatings are applied by low pressure DC plasma ...  
WO/2007/092228A3
An apparatus and method comprising a cathode structure which can be a cylindrical filament coiled in a helix or which can be constructed of a ribbon or other suitable shape. The cathode structure can be heated by passage of an electrical...  
WO/2008/058267A3
The bearing assembly (100) includes an axial shaft (102) supported on front and rear bearing sub-assemblies (104, 106), each of which has an inner raceway (108) and an outer raceway (110). The outer raceways (110a, 110b) for each of the ...  
WO/2008/090518A1
It is described a filter (300) for at least partially compensating for an X-ray tube (10) the target angle heel effect and preserving the tungsten spectrum of the X-rays. The filter (300) has an anode side (302) and a cathode side (304),...  
WO/2007/035389A3
Methods and apparatus for electron beam treatment of a substrate are provided. An electron beam apparatus that includes a vacuum chamber, at least one thermocouple assembly in communication with the vacuum chamber, a heating device in co...  
WO/2007/132380A3
The invention relates the field of electron emitter of an X-ray tube. More specifically the invention relates to flat thermionic emitters to be used in X-ray systems with variable focus spot size and shape. The emitter provides two main ...  
WO/2008/083932A1
The invention is concerned with a portable X-ray unit with an X-ray tube (1), a high-voltage generator (3) and with a control and operating part (5), wherein the high-voltage generator (3) is accommodated in a generator tank (4), and the...  
WO/2008/080624A1
The invention relates to an X-ray tube, especially a microfocus X-ray tube (2), comprising means (18) for orienting an electron beam (10) towards a target (4). A control device (20) is used to control the means for orienting the electron...  
WO/2008/080625A1
The invention relates to a method for determining the extension of the cross-section (4) of an electron beam (16) along a first axis which is essentially perpendicular to the beam axis. According to said method: the electron beam can be ...  
WO/2008/078477A1
A target (5) to be irradiated with an electron beam is formed such that its two-dimensional drawing, as seen in a predetermined direction (an arrow (Y1)), is sufficiently larger in size than the target (5), but smaller in area than the t...  
WO/2008/053403A3
For x-ray tubes the focal spot temperature is a critical factor. According to an exemplary embodiment of the present invention, an examination apparatus is provided which has a synchronisation unit providing an operation mode for a stere...  
WO/2008/076571A1
The present invention is directed a molybdenum alloy consisting essentially of a) molybdenum present in a major amount, b) tantalum and tungsten as major metal alloy additions and c) a minor amount of an element selected from the group c...  
WO/2007/127939A3
A system for remotely venting an expansion bladder employed in a liquid-filled container, such as an outer housing of an x-ray tube. The remote venting configuration provides the expansion bladder with access to atmospheric pressure exis...  
WO/2008/072144A1
A device and method for X-ray tube focal spot parameter control, wherein stray electrons are detected in an X-ray tube. The detected electrons lead to a signal having a characteristic pattern. The characteristic pattern may be evaluated,...  
WO/2007/142999A3
A dual energy X-ray source fr use in an exlosive detection system includes a single power supply (10) and a single X-ray tube (20). The X-ray tube includes only two electron guns (16, 18) and only a single anode (12) Each electorn gun (1...  
WO/2007/126782A3
Treatment planning methods are provided that determine the variability of relative biological effectiveness (RBE) along a beam line and calculate, among other things, what intensity of hadron beam such as a proton or a carbon ion beam sh...  
WO/2008/044194A3
It is described an electron optical arrangement, a X-ray emitting device and a method of creating an electron beam. An electron optical apparatus (1) comprises the following components along an optical axis (25): a cathode with an emitte...  
WO/2008/069195A1
A rotary anode type X ray tube comprising a fixed body having a radial sliding bearing surface (S1) on the side face and an internal channel for allowing cooling liquid (20) to pass, a body of rotation (600) including a disklike large di...  
WO/2008/068691A2
It is described an X-ray tube (100, 200) for moving a focal spot within a wide range. The X-ray tube (100, 200) comprises a first electron source (105), which is adapted to generate a first electron beam projecting along a first beam pat...  
WO/2008/044196A3
According to an exemplary embodiment an x-ray tube comprises a cathode, rotable disc anode, and a focal spot modulating unit, wherein the cathode is adapted to emit an electron beam, and wherein the focal spot modulating unit is adapted ...  
WO/2008/062519A1
When the focus of an X-ray tube in an X-rays generator is to be made extremely small, a first electrode closest to a cathode out of two or more intermediate electrodes (2b, 2c, 2d) arranged between a cathode (2a) and a target (3) must be...  
WO/2008/060775A2
The present invention is directed to an improved process for manufacturing a rotary anode for an x-ray tube, said rotary anode comprising a molybdenum support member on which a target layer consisting essentially of tungsten or a tungste...  
WO/2008/060671A2
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 an...  
WO/2008/058267A2
The bearing assembly (100) includes an axial shaft (102) supported on front and rear bearing sub-assemblies (104, 106), each of which has an inner raceway (108) and an outer raceway (110). The outer raceways (110a, 110b) for each of the ...  
WO/2008/056299A1
A multiple focal spot X-ray tube (100) comprising an electron source (105), which is adapted to generate an electron beam (106), an anode (110), which is arranged within the electron beam (106) and which comprises a first focal spot port...  
WO/2008/037731A3
The invention relates to an X-ray system (2) for tomosynthetic scanning of an object (6), comprising an X-ray source (8), emitting an X-ray beam (20) for irradiating the object (6) during the tomosynthetic scanning which may be pivoted r...  
WO/2008/053403A2
For x-ray tubes the focal spot temperature is a critical factor. According to an exemplary embodiment of the present invention, an examination apparatus is provided which has a synchronisation unit providing an operation mode for a stere...  
WO/2007/117677A3
A system for cooling an X-ray tube in a CT machine, wherein the X-ray tube is of the type comprising a rear cylindrical portion, a front cylindrical portion, an annular face formed at the intersection of the rear cylindrical portion and ...  
WO/2008/047267A2
It is described an X-ray tube (100) comprising an ion manipulation arrangement (140) having at least one ion collector electrode (141). The ion collector electrode (141) is made at least partially from a getter material. The ion manipula...  
WO/2008/046654A1
The invention relates to a tube hood (1) for an X-ray tube, in particular for a microfocus tube, with a housing body (2). The invention provides that the tube hood (1) has an active heating apparatus for the housing body (2). The inventi...  
WO/2008/047269A2
It is described an emitter (26, 40) for X-ray tubes comprising: a flat foil with an emitting section (30, 46); and at least two electrically conductive fixing sections (31-34; 41-44); wherein the emitting section (30, 46) is unstructured.  
WO/2008/044196A2
According to an exemplary embodiment an x-ray tube comprises a cathode, rotable disc anode, and a focal spot modulating unit, wherein the cathode is adapted to emit an electron beam, and wherein the focal spot modulating unit is adapted ...  
WO/2008/044194A2
It is described an electron optical arrangement, a X-ray emitting device and a method of creating an electron beam. An electron optical apparatus (1) comprises the following components along an optical axis (25): a cathode with an emitte...  
WO/2008/017982A3
The invention relates to an X-ray tube with a cathode, generating an electron beam, and an ion-deflecting and collecting setup (IDC), consisting of a single pair of electrodes, wherein the first electrode has a positive supply and the se...  
WO/2008/017983A3
According to an exemplary embodiment of the present invention, an examination apparatus may be provided which temporarily stores energy on a gantry rotor. A rotatably mounted electrode of an X-ray tube may be used as an energy storage de...  
WO/2008/039580A2
A rotating anode for x-ray generation uses a heat pipe principle with a heat pipe coolant located in a sealed chamber of a rotating portion of the anode. The rotating portion is positioned relative to a second portion so that relative ro...  
WO/2008/037731A2
The invention relates to an X-ray system (2) for tomosynthetic scanning of an object (6), comprising an X-ray source (8), emitting an X-ray beam (20) for irradiating the object (6) during the tomosynthetic scanning which may be pivoted r...  
WO/2008/036415A2
Various novel apparatuses and methods for generating X-rays are disclosed. One or more e-beam generators are oriented at non-conventional locations with respect to the target of the device.  
WO/2008/006569A3
The invention relates to a method for operating an arrangement embodied to produce electromagnetic radiation, especially X-radiation or extreme ultraviolet radiation. The method according to the invention is characterized by guiding part...  
WO/2008/019682A1
The invention relates to a bearing unit (1) for rotary anodes of X-ray tubes, with 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 X-ray...  
WO/2008/017983A2
According to an exemplary embodiment of the present invention, an examination apparatus may be provided which temporarily stores energy on a gantry rotor. A rotatably mounted electrode of an X-ray tube may be used as an energy storage de...  
WO/2008/017982A2
The invention relates to an X-ray tube with a cathode, generating an electron beam, and an ion-deflecting and collecting setup (IDC), consisting of a single pair of electrodes, wherein the first electrode has a positive supply and the se...  
WO/2008/017376A1
The invention relates to a focusing apparatus (9) for an X-ray tube (1), wherein the focusing apparatus (9) has an electrical conductor, which is shaped to form at least one coil winding (10), and a ferromagnetic core (11), which is desi...  
WO/2007/130576A3
An X-ray imaging system is provided which includes an X-ray tube including, a cathode for emitting electrons; and a dynamic anode. The dynamic anode receives the electrons from the cathode and generates an X-ray beam that is non- station...  
WO/2006/091948A3
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...  
WO/2007/129249A3
The rotating anode x-ray tube comprises an anode, whose focal track has the shape of a saddle trajectory. A proper anode angle to enable a high power line focus is always realised along the focal path on the anode. The x-ray tube is for ...  

Matches 651 - 700 out of 7,895