| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 378138000 | With electron focusing or intensity control means | 51 |
| 20080304624 | X-RAY SOURCE - A transmission target of a vacuum container is operable to have a ground potential and an electro-optical system is floated at a positive potential in the vacuum container. An electron beam, which is converged by means of the electro-optical system, is decelerated immediately before the electron beam is incident to the transmission target. The electron beam has energy that is several times of the final set value until the electron beam passes through the electro-optical system, and a divergence action exerted by a spatial electric charge effect is reduced. Color aberration of the electro-optical system is proportional to energy of the electron beam. Thus, if the electron beam is decelerated after the electron beam has passed through the electro-optical system, aberration is reduced in proportion to the degree of deceleration, making it possible to concurrently reduce a focus size. | 12-11-2008 |
| 20090022277 | Cathode header optic for x-ray tube - A cathode header optic for an x-ray tube includes an elongate trench with opposite trench walls. A cup recess is formed in the trench between the opposite trench walls, and has a bounded perimeter. A cathode element is disposed in the trench at the cup recess. The cathode element is capable of heating and releasing electrons. A secondary cathode optic defining a cathode ring can be disposed about the header optic. The cathode optics can form part of an x-ray tube. | 01-22-2009 |
| 20090122961 | X-ray generating method, and X-ray generating apparatus - A method for generating an X-ray includes the steps of: flattening an electron beam with a circular cross section by means of Lorentz force to form a flat electron beam with a flat cross section under the condition so that an intensity of the flat electron beam per unit area can be set higher than an intensity of said electron beam per unit area; and irradiating the flat electron beam onto a target, thereby generating an X-ray. | 05-14-2009 |
| 20090154651 | X-RAY TUBE AND X-RAY SOURCE INCLUDING SAME - The present invention relates to an X-ray tube, having a structure enabling capturing of a clear magnified transmission image and enabling increase of a magnification factor of the magnified transmission image, and an X-ray source including the X-ray tube. In the X-ray tube, X-rays are generated by making electrons from an electron gun incident onto an X-ray target of an anode, disposed inside an anode housing unit, and the generated X-rays are taken out from an X-ray emission window. In particular, the anode housing unit has a pair of conductive flat portions disposed parallel to a reference plane, orthogonal to an electron incidence surface of the X-ray target, and so as to sandwich the X-ray target. The reference plane contains a first reference line, joining an electron emission exit center of the electron gun and an electron incidence surface center of the X-ray target, and a second reference line, being a straight line intersecting the first reference line on the electron incidence surface of the X-ray target and joining the electron incidence surface center and an X-ray emission window center. | 06-18-2009 |
| 20090161830 | X-RAY TUBE AND X-RAY SOURCE INCLUDING IT - The present invention relates to an X-ray tube, having a structure for realizing improvement of a magnification factor of a magnified transmission image, and an X-ray source that includes the X-ray tube. The X-ray tube includes: a target housing unit, housing an X-ray target; and an electron gun housing unit, one end of which is mounted to a side wall portion of the target housing unit. The electron gun housing unit is disposed so that a tube axis thereof intersects a tube axis of the target housing unit. The electron gun housing unit holds an electron gun while a center of an electron emission exit of the electron gun is shifted more toward an X-ray emission window side, disposed at one end of the side wall portion of the target housing unit, than the tube axis of the electron gun housing unit. By this configuration, a distance (FOD) between the X-ray emission window and the X-ray target can be shortened while maintaining an adequate electron gun output. | 06-25-2009 |
| 20090232279 | X-RAY SOURCE WITH NONPARALLEL GEOMETRY - An improved electron bombardment device includes a first tubular member for containing a target material and a second tubular member surrounding the first tubular member, leaving a space between the first and second tubular members. In an embodiment of the invention, the second tubular member is an electron emitting material, and the bombardment device includes a voltage application means for accelerating emitted electrons from the second tubular member towards the first tubular member. In a further embodiment of the invention, the second tubular member comprises a thermionic electron emitting material. In an alternative embodiment, the second tubular member comprises a field electron emitting material. | 09-17-2009 |
| 20090245470 | X-Ray Tube Electron Sources - An X-ray tube includes an emitter wire ( | 10-01-2009 |
| 20090257562 | Mammography x-ray homogenizing optic - A conical anode X-ray source with a spot size approximately one tenth of the size of existing mammography devices. The source produces the same or higher radiance than the prior art. It also produces almost no high-energy Bremstrahlung. The electron beam is directed into a conical anode so that it strikes the reflecting surface at an angle which produces total internal reflection. The X-rays emitted via the reflection would ordinarily exit the small end of the conical anode in a diverging conical pattern—producing an undesirable “ring” configuration at the image plane. A homogenizing optic is therefore preferably added to the small end of the conical anode. The homogenizing optic is sized to reflect the X-rays emerging from the conical anode and thereby create a uniform “spot” source at the far end of the homogenizing optic. | 10-15-2009 |
| 20100002843 | STANDING WAVE ELECTRON LINEAR ACCELERATOR AND INSTALLATION ADJUSTING DEVICE THEREOF - The present invention discloses a standing wave linear accelerator, comprising: a microwave device configured to generate microwave; an electron beam emitting device configured to emit electron beam; an accelerating device configured to receive the microwave generated by the microwave device and form a microwave electric field, to accelerate electron beams generated from the electron beam emitting device and undertake the accelerated electron beam targeting to emit X ray beam; a synchronous device generating synchronous pulse signal; and a quick beam emitting device receiving the synchronous pulse signal generated by the synchronous device, wherein the microwave device runs and generates microwave in advance before the operation of the electron beam emitting device based on the synchronous pulse signal, and the quick beam emitting device drives the electron beam emitting device to emit electron beam after power of the microwave generated by the microwave device reaches stable state, so that the accelerating device emits X ray beam. In the accelerator, the microwave system and the electron beam emitting device do not work at the same time, and the accelerator electron beam emitting system is started only when the AFC is put into operation and runs stably. | 01-07-2010 |
| 20100020938 | DEVICE AND METHOD FOR X-RAY TUBE FOCAL SPOT SIZE AND POSITION CONTROL - 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, and based on the evaluation a controlling signal may be outputted so that a fast and exact controlling of the operating parameters of an X-ray tube may be carried out based on the detected stray electrons. | 01-28-2010 |
| 20100142680 | SYSTEM AND METHOD TO MAINTAIN TARGET MATERIAL IN DUCTILE STATE - An x-ray tube includes a frame, an anode for generating x-rays disposed within the frame, a cathode disposed within the frame, where the cathode is configured to selectively emit an electron beam toward the anode, and at least one heating element disposed within the frame and configured to heat a portion of the anode. | 06-10-2010 |
| 20100142681 | ARRANGEMENT FOR GENERATION OF X-RAY RADIATION WITH A LARGE REAL FOCUS AND A VIRTUAL FOCUS ADJUSTED ACCORDING TO REQUIREMENTS - An arrangement for generating X-ray radiation includes an anode ( | 06-10-2010 |
| 20100172476 | X-Ray Tubes - An X-ray tube comprises an electron source in the form of a cathodE ( | 07-08-2010 |
| 20100195799 | X-RAY TUBE APPARATUS - Conventionally, the magnetic field generator was arranged perpendicularly to the axis of the electron beam. The magnetic field generator of this invention is arranged so as to be inclined relative to the plane perpendicular to the axis of the electron beam. Specifically, the magnetic field generator is arranged so as to be inclined relative to the plane perpendicular to the axis of the electron beam within the range in the cathode side from the focused and deflected electron beam. Inclination up to the anode side opposite to the cathode side will lead to a possibility of increasing the reduced X-ray source diameter. Thus, arranging the magnetic field generator so as to be inclined within the range in the cathode side from the electron beam may reduce the X-ray source diameter. | 08-05-2010 |
| 20100195800 | X-RAY TUBE - An x-ray tube has an anode and a thermionic emitter with multiple emitter regions spaced from one another that generate, between the emitter and the anode, an electron beam composed of multiple partial beams generated by the respective emitter regions. Between the emitter and the anode is at least one control electrode arrangement that generates a variable electrical field and that has a number of passages to control the respective partial beams. Thus control electrode arrangement has a number of control electrode layers. The individual emitter regions and the control electrodes are arranged and controlled relative to one another to cause substantially the entirety of each partial beam generated by the respective emitter regions to proceed through a passage respectively associated with that partial beam. | 08-05-2010 |
| 20100290595 | X-ray tube having a rotating and linearly translating anode - The X-ray tube having a rotating and linearly translating anode includes an evacuated shell having a substantially cylindrical anode rotatably mounted therein. The substantially cylindrical anode may be rotated through the usage of any suitable rotational drive, and the substantially cylindrical anode is further selectively and controllably linearly translatable about the rotating longitudinal axis thereof. A cathode is further mounted within the evacuated shell for producing an electron beam that impinges on an outer surface of the substantially cylindrical anode, thus forming a focal spot thereon. X-rays are generated from the focal spot and are transmitted through an X-ray permeable window formed in the evacuated shell. | 11-18-2010 |
| 20100310051 | X-RAY GENERATOR, X-RAY IMAGING APPARATUS, AND CONTROL METHODS THEREFOR - In an X-ray generator which includes an electron beam generating unit which has a plurality of electron emitters and generates an electron beam corresponding to driven electron emitters, and a target electrode which generates X-rays with the irradiation position of an electron beam generated by the electron beam generating unit being an X-ray focus, the X-ray focus shape formed by a set of X-ray focuses on the target electrode is controlled by individually controlling driving of the plurality of electron emitters. | 12-09-2010 |
| 20110002447 | METHOD TO CONTROL THE EMISSION OF A BEAM OF ELECTRONS IN A CATHODE, CORRESPONDING CATHODE, TUBE AND IMAGING SYSTEM - A method for controlling emission of a beam of electrons in an X-ray imaging tube. The X-ray imaging tube has an anode and a cathode. The method comprises a step in which at least one emission device included in the cathode emits an accelerated incident beam of electrons onto an impact focal spot on the anode to generate X-rays. An emission device is associated firstly with an assembly of polarizing plates and secondly with a focusing cup. An electric generator simultaneously applies a beam focusing voltage to the assembly and/or to the cup to control a characteristic dimension of the focal spot, and a cut-off voltage to the cup to control the emission of the beam by the device. The invention also concerns a corresponding cathode, tube and imaging system. | 01-06-2011 |
| 20110038460 | DEVICE AND METHOD TO CONTROL AN ELECTRON BEAM FOR THE GENERATION OF X-RAY RADIATION, IN AN X-RAY TUBE - A device to control an electron beam for the generation of x-ray radiation, has an electron emitter to generate an electron beam, to which emitter an emitter voltage can be applied, a diaphragm, at least two control elements associated with the diaphragm to affect the electron beam, and switching arrangement with which at least two different electrical voltages can be applied to the at least two control elements. The same electrical voltage is applied to each of the at least two control elements. Upon switching the voltage, an electrical circuit that delays the setting of the respective voltage at the one control element is associated with the connection line of the one control element with the switching arrangement to switch over the voltage. The invention moreover concerns an operating method for the device and an x-ray tube provided with the device. | 02-17-2011 |
| 20110103554 | RAPIDLY SWITCHING DUAL ENERGY X-RAY SOURCE - A dual energy X-ray source for use in Homeland Security, Medical, Non-destructive Testing, and other markets includes a power supply, and a single x-ray tube. The X-ray tube includes two cathodes, and a single anode. The electrons from the cathodes travel predominantly along the axis of the x-ray tube, and impact the anode. The grid and/or focus coil direct the electrons so that electrons can pass by the cathode. The cathodes are kept at different potential, such that the tube can rapidly switch energies, and can rapidly switch output flux from each cathode. | 05-05-2011 |
| 20110135066 | MULTI-SEGMENT ANODE TARGET FOR AN X-RAY TUBE OF THE ROTARY ANODE TYPE WITH EACH ANODE DISK SEGMENT HAVING ITS OWN ANODE INCLINATION ANGLE WITH RESPECT TO A PLANE NORMAL TO THE ROTATIONAL AXIS OF THE ROTARY ANODE AND X-RAY TUBE COMPRISING A ROTARY ANODE WITH SUCH A MULTI-SEGMENT ANODE TARGET - The present invention refers to X-ray tubes for use in imaging applications with an improved power rating and, more particularly, to a multi-segment anode target ( | 06-09-2011 |
| 20110142204 | APPARATUS FOR MODIFYING ELECTRON BEAM ASPECT RATIO FOR X-RAY GENERATION - An apparatus for modifying an aspect ratio of an electron beam to form a focal spot having a desired size and aspect ratio on a target anode is disclosed. The apparatus includes an emitter element configured to generate an electron beam having a first aspect ratio shape and an extraction electrode positioned adjacent to the emitter element to extract the electron beam out therefrom, the extraction electrode including an opening therethrough. The apparatus also includes at least one shaping electrode positioned to receive the electron beam after passing through the extraction electrode, the shaping electrode defining a non-circular aperture therein and being configured to provide at least one of shaping and focusing of the electron beam to have a second aspect ratio shape different from the first aspect ratio shape so as to form a focal spot having a desired size and aspect ratio on a target anode. | 06-16-2011 |
| 20110150184 | MULTIPLE WAVELENGTH X-RAY SOURCE - A multiple wavelength x-ray source includes a multi-thickness target, having at least a first and a second thickness. The first thickness can substantially circumscribe the second thickness. An electron beam can be narrowed to impinge primarily upon second thickness or expanded to impinge primarily upon the first thickness while maintaining a constant direction of the beam. This invention allows the target thickness to be optimized for the desired output wavelength without the need to redirect or realign the x-rays towards the target. | 06-23-2011 |
| 20110235785 | AUXILIARY GRID ELECTRODE FOR X-RAY TUBES - The present invention refers to an X-ray tube of the rotary-anode type which comprises at least one temporarily negatively biased auxiliary grid electrode ( | 09-29-2011 |
| 20120099707 | APPARATUS AND METHOD FOR IMPROVED TRANSIENT RESPONSE IN AN ELECTROMAGNETICALLY CONTROLLED X-RAY TUBE - An x-ray tube assembly includes a vacuum enclosure that has a cathode portion, a target portion, and a throat portion. The throat portion includes a metal bellows. An upstream end of the throat portion is coupled to the cathode portion and a downstream end of the throat portion is coupled to the target portion. The x-ray tube assembly also includes a target positioned within the target portion of the vacuum enclosure, and a cathode positioned within the cathode portion of the vacuum enclosure. The cathode is configured to emit a stream of electrons through the throat portion toward the target. | 04-26-2012 |
| 20120099708 | APPARATUS AND METHOD FOR IMPROVED TRANSIENT RESPONSE IN AN ELECTROMAGNETICALLY CONTROLLED X-RAY TUBE - An x-ray tube assembly includes a vacuum enclosure that includes a cathode portion, a target portion, and a throat portion having a plurality of recesses formed therein to break up eddy currents generated in the throat portion. The throat portion has an upstream end coupled to the cathode portion and a downstream end coupled to the target portion. The x-ray tube assembly also includes a target positioned within the target portion of the vacuum enclosure, and a cathode positioned within the cathode portion of the vacuum enclosure. The cathode is configured to emit a stream of electrons through the throat portion toward the target. | 04-26-2012 |
| 20120257723 | ELECTRON BEAM GENERATOR AND X-RAY GENERATOR INCLUDING THE SAME - An electron beam generator includes a cathode electrode; and a first insulating layer, a gate, a second insulating layer and a focusing gate sequentially on the cathode electrode. The cathode electrode, the first insulating layer, the gate, the second insulating layer and the focusing gate are individually separable from each other and combinable with each other. | 10-11-2012 |
| 20120269324 | X-ray source with selective beam repositioning - During operation of an x-ray source, an electron source emits a beam of electrons. Moreover, a repositioning mechanism selectively repositions the beam of electrons on a surface of a target based on a feedback parameter, where a location of the beam of electrons on the surface of the target defines a spot size of x-rays output by the x-ray source. In response to receiving the beam of electrons, the target provides a transmission source of the x-rays. Furthermore, a beam-parameter detector provides the feedback parameter based on a physical characteristic associated with the beam of electrons and/or the x-rays output by the x-ray source. This physical characteristic may include: at least a portion of an optical spectrum emitted by the target, secondary electrons emitted by the target based on a cross-sectional shape of the beam of electrons; an intensity of the x-rays output by the target; and/or a current from the target. | 10-25-2012 |
| 20120269325 | X-ray source with increased operating life - An x-ray source is described. During operation of the x-ray source, an electron source emits a beam of electrons. This beam of electrons is focused to a spot on a target by a magnetic focusing lens. In response to receiving the beam of focused electrons, the target provides a transmission source of x-rays. Moreover, a repositioning mechanism selectively repositions the beam of focused electrons to different locations on a surface of the target based on a feedback parameter associated with operation of the x-ray source. This feedback parameter may be based on: an intensity of the x-rays output by the x-ray source; a position of the x-rays output by the x-ray source; an elapsed time during operation of the x-ray source; a cross-sectional shape of the x-rays output by the x-ray source; and/or a spot size of the x-rays output by the x-ray source. | 10-25-2012 |
| 20120269326 | X-ray source with high-temperature electron emitter - An x-ray source is described. This x-ray source includes an electron source with a refractory binary compound having a melting temperature greater than that of tungsten. For example, the refractory binary compound may include: hafnium carbide, zirconium carbide, tantalum carbide, lanthanum hexaboride and/or compounds that include two or more of these elements. | 10-25-2012 |
| 20120281815 | X-RAY TUBE AND METHOD TO OPERATE AN X-RAY TUBE - An x-ray tube has an evacuated, rotatable housing in which are arranged a cathode designed to emit an electron beam and an anode interacting with this cathode, and two quadrupole magnet systems arranged outside of the housing and spaced apart from one another that are provided to influence the electron beam. | 11-08-2012 |
| 20130170623 | SMALL X-RAY TUBE WITH ELECTRON BEAM CONTROL OPTICS - An x-ray tube comprising an anode and a cathode disposed at opposing ends of an electrically insulative cylinder. The x-ray tube includes an operating range of 15 kilovolts to 40 kilovolts between the cathode and the anode. The x-ray tube has an overall diameter, defined as a largest diameter of the x-ray tube anode, cathode, and insulative cylinder, of less than 0.6 inches. A direct line of sight exists between all points on an electron emitter at the cathode to a target at the anode. | 07-04-2013 |
| 20130195253 | X-RAY TUBE APERTURE BODY WITH SHIELDED VACUUM WALL - X-ray tube aperture body with shielded vacuum wall. In one example embodiment, an aperture body for use in an x-ray tube having an anode and a cathode includes an electron shield and a vacuum wall. The electron shield is configured to intercept backscattered electrons from the anode. The vacuum wall is separated by a gap from the electron shield and is shielded from the backscattered electrons by the electron shield. The aperture body also includes an electron shield aperture defined in the electron shield and a vacuum wall aperture defined in the vacuum wall through which electrons may pass between the cathode and the anode. | 08-01-2013 |
| 20130208870 | MIRCOFOCUS X-RAY TUBE FOR A HIGH-RESOLUTION X-RAY APPARATUS - An apparatus is provided for a micro focus X-ray tube for a high-resolution X-ray comprising a housing, an electron beam source for generating an electron beam and a focusing lens for focusing the electron beam on a target. The X-ray tube comprises a substantially rotationally symmetrical, ring-shaped cooling chamber configured to circulate a liquid cooling medium. | 08-15-2013 |
| 20130243163 | X-RAY APPARATUS AND ITS ADJUSTING METHOD - An adjusting method of an X-ray apparatus has a reflection structure, wherein assuming that one end plane of the reflection structure is an inlet port of the X-ray and the other end plane is an outlet port of the X-ray, a pitch of the reflection substrates at the outlet port is wider than that at the inlet port. When the X-ray source exists at a position where a glancing angle at the time when the X-ray enters the inlet port exceeds a critical angle, an intensity of the X-ray emitted from each passage is detected. On the basis of the detected X-ray intensity, a relative position of the X-ray source and the reflection structure is adjusted. | 09-19-2013 |
| 20130322602 | INTERNAL SHIELDING X-RAY TUBE - An x-ray tube is presented. One embodiment of the x-ray tube includes a cathode unit configured to emit electrons. The x-ray tube further includes an anode unit positioned to receive the emitted electrons, wherein the anode unit includes a base having a target surface configured to generate x-rays when the emitted electrons impinge on the target surface. Also, the anode unit includes a first shielding unit enclosing the base to attenuate at least a first portion of the generated x-rays within the anode unit. | 12-05-2013 |
| 20130336461 | X-RAY TUBE AND METHOD OF CONTROLLING X-RAY FOCAL SPOT USING THE SAME - An X-ray tube is provided. The X-ray tube includes a cathode electrode which is disposed in one end of a vacuum container and includes an emitter emitting an electron; a gate electrode which is disposed in the vacuum container to be adjacent to the cathode electrode; an anode electrode which is disposed in the vacuum container of the other end of a direction in which the vacuum container extends and inclines with respect to the cathode electrode; and a focusing electrode which is disposed in the vacuum container along an inner circumference surface of the vacuum container between the gate electrode and the anode electrode. The focusing electrode has an opening of which a plan cross section has a maximum width and a minimum width different from each other. | 12-19-2013 |
| 20140079189 | X-RAY GENERATING DEVICE AND X-RAY-GENERATING-DEVICE CONTROL - An X-ray generating device ( | 03-20-2014 |
| 20140105367 | X-RAY GENERATING APPARATUS - The X-ray generating apparatus | 04-17-2014 |
| 20140247923 | X-RAY SOURCE HAVING COOLING AND SHIELDING FUNCTIONS - Disclosed herein is an X-ray source having cooling and shielding functions. The X-ray source includes an X-ray generation unit ( | 09-04-2014 |
| 20150092923 | DEVICES HAVING AN ELECTRON EMITTING STRUCTURE - The disclosure relates to an image capture device comprising an electron receiving construct and an electron emitting construct, and further comprising an inner gap providing an unobstructed space between the electron emitting construct and the electron receiving construct. The disclosure further relates to an x-ray emitting device comprising an x-ray emitting construct and an electron emitting construct, said x-ray emitting construct comprising an anode, the anode being an x-ray target, wherein the x-ray emitting device may comprise an inner gap providing an unobstructed space between the electron emitting construct and the x-ray emitting construct. The disclosure further relates to an x-ray imaging system comprising an image capture device and an x-ray emitting device. | 04-02-2015 |
| 20150110251 | COUPLED MAGNET CURRENTS FOR MAGNETIC FOCUSING - Issues related to maintaining the size of a focal spot on the target material of an X-ray source are addressed by linking the currents used in a magnetic focusing system employed in the X-ray source. The size of the focal spot on the target is less sensitive to current changes applied to the magnetic focusing system due to this linkage. | 04-23-2015 |
| 20150110252 | X-RAY SOURCES USING LINEAR ACCUMULATION - We disclose a compact source for high brightness x-ray generation. The higher brightness is achieved through electron beam bombardment of multiple regions aligned with each other to achieve a linear accumulation of x-rays. This may be achieved by aligning discrete x-ray sources, or through the use of novel x-ray targets that comprise a number of microstructures of x-ray generating materials fabricated in close thermal contact with a substrate with high thermal conductivity. This allows heat to be more efficiently drawn out of the x-ray generating material, and in turn allows bombardment of the x-ray generating material with higher electron density and/or higher energy electrons, leading to greater x-ray brightness. | 04-23-2015 |
| 20150117617 | X-RAY TUBE - According to one embodiment, an X-ray tube includes an anode target, a cathode including a filament and a convergence electrode which includes a groove portion, and an envelope. The groove portion includes a pair of first bottom surfaces which are located in the same plane as the filament and between which the filament is interposed in a width direction of the groove portion, and a pair of second bottom surfaces between which the filament and the pair of first bottom surfaces are interposed in a length direction of the groove portion and which are located closer to an opening of the groove portion than the pair of first bottom surfaces. | 04-30-2015 |
| 20160005565 | PHOTOCATHODE COUPLED X-RAY TUBE - Provided is an X-ray tube including an anode, a target on the anode, a cathode disposed separate from the target and the anode and comprising an emitter providing an electron beam to the target, and a side wall disposed between the cathode and the anode, and surrounding the target and the emitter. The side wall reflects a light generated by collision of the electron beam with the target to the cathode, and electrically insulates the cathode from the anode. | 01-07-2016 |
| 20160064176 | COOLING MECHANISM FOR HIGH-BRIGHTNESS X-RAY TUBE USING PHASE CHANGE HEAT EXCHANGE - 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 change material (L-V PCM). The back side of the anode is exposed to an interior of the heat exchange chamber, and a jet sprayer inside the heat exchange chamber sprays a liquid of the metal onto the back side of the heated anode. The L-C PCM evaporates on that surface to carry away the heat, and the vapor then condenses back into the liquid on the cool surfaces of the heat exchange chamber. The surfaces of the heat exchange chamber may be cooled by convection cooling. Optionally, pipes containing a circulating cooling fluid may be provide inside the heat exchange chamber. | 03-03-2016 |
| 20160128169 | X-RAY TUBE ASSEMBLY AND METHOD FOR ADJUSTING FILAMENT - An X-ray tube assembly for generating an X-ray, comprises: a filament including a plurality of electric flow paths; and an adjustor configured to adjust at least one of values of current flowing through the plurality of electric flow paths to adjust an electron emission area of the filament. | 05-05-2016 |
| 20160157329 | X-RAY APPARATUS | 06-02-2016 |
| 20160189909 | TARGET FOR X-RAY GENERATION AND X-RAY GENERATION DEVICE - A target for X-ray generation includes a substrate, a first X-ray target portion formed on an upper surface of the substrate, and a second X-ray target portion formed at a position surrounding the first X-ray target portion in the upper surface of the substrate, while being spaced from an outer edge of the first X-ray target portion. | 06-30-2016 |
| 20160196950 | X-RAY TUBE ASSEMBLY | 07-07-2016 |
| 20160254116 | METAL ELECTRODE, AND ELECTRON GUN, ELECTRON TUBE, AND X-RAY TUBE USING METAL ELECTRODE | 09-01-2016 |
