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| Number | Title | Issue Date |
| 8027433 | Method of fast current modulation in an X-ray tube and apparatus for implementing same An x-ray imaging system includes a detector positioned to receive x-rays, and an x-ray tube coupled to a mount structure. The x-ray tube is configured to generate x-rays toward the detector and includes a target, a cathode cup, an emitter attached to the cathode cup... | 09/27/2011 |
| 7983394 | 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... | 07/19/2011 |
| 7940894 | Elongated lifetime X-ray method and apparatus used in conjunction with a charged particle cancer therapy system The system uses an X-ray imaging system having an elongated lifetime. Further, the system uses an X-ray beam that lies in substantially the same path as a charged particle beam path of a particle beam cancer therapy system. The system creates an electron beam that s... | 05/10/2011 |
| 7751531 | 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 generat... | 07/06/2010 |
| 7734015 | X-ray tube and X-ray source including same The present invention relates to an X-ray tube in which 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 wind... | 06/08/2010 |
| 7664229 | 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-... | 02/16/2010 |
| 7653178 | 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 ... | 01/26/2010 |
| 7649980 | 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 i... | 01/19/2010 |
| 7542549 | X-ray source with nonparallel geometry An improved x-ray generation system produces a converging or diverging radiation pattern particularly suited for substantially cylindrical or spherical treatment devices. In an embodiment, the system comprises a closed or concave outer wall about a closed or concave... | 06/02/2009 |
| 7529346 | Method for stabilizing the size of a focal spot of an X-ray tube, and X-ray tube comprising such a method In a method for stabilizing the size of a focal spot of an X-ray tube and contrast modulation function of a X-ray tube, the tube has a cathode comprising a concentrator and a heating filament. It has an anode is placed so as to be facing the cathode. With the filame... | 05/05/2009 |
| 7486776 | Shield structure and focal spot control assembly for x-ray device A shield structure and focal spot control assembly is provided for use in connection with an x-ray device that includes an anode and cathode disposed in a vacuum enclosure in a spaced apart arrangement so that a target surface of the anode is positioned to receive e... | 02/03/2009 |
| 7428298 | Magnetic head for X-ray source An X-ray source includes a magnetic appliance to provide electron beam focusing. The magnetic appliance can provide variably focused and non-focused configurations. The magnetic appliance can include one or more electromagnets and/or permanent magnets. An electric p... | 09/23/2008 |
| 7424095 | Modular X-ray tube and method of production thereof Modular X-ray tube (10) and method for the production of such an X-ray tube, in which an anode (20) and a cathode (30) are arranged in a vacuumized inner space (40) situated opposite each other, electrons (e−) being produced ... | 09/09/2008 |
| 7406154 | High speed modulation of switched-focus x-ray tube A dose-modulated irradiating system includes an x-ray tube (20) with at least a filament (80) for generating electrons, a cathode (84) and an anode (92) for accelerating and collimating the generated electrons into an electron beam (94... | 07/29/2008 |
| 7403595 | X-ray tube system with disassembled carbon nanotube substrate for generating micro focusing level electron-beam Disclosed is an X-ray tube system with a disassembled carbon nanotube substrate for generating micro focusing level electron beams. A housing provides a vacuum space. An anode forms an electric field by a voltage applied from the outside and accelerates the electron... | 07/22/2008 |
| 7391850 | Compact, high-flux, short-pulse x-ray source An x-ray source that can produce high-brilliance x-rays at a low cost and from a small footprint includes a radiofrequency (RF) photoinjector, an accelerator module (such as a linear superconducting accelerator moducle), a high-power optical laser apparatus, and a p... | 06/24/2008 |
| 7386095 | X-ray tube The present invention relates to an X-ray tube with a structure, by which the charging of an insulating member, disposed inside a container, is effectively prevented to enable stable operation to be secured. This X-ray tube has an electron source that emits electron... | 06/10/2008 |
| 7382862 | X-ray tube cathode with reduced unintended electrical field emission An x-ray source has an evacuated tube. An anode is disposed in the tube and includes a material configured to produce x-rays in response to impact of electrons. A cathode is disposed in the tube opposing the anode configured to produce electrons accelerated towards ... | 06/03/2008 |
| 7359485 | X-ray generating method and X-ray generating apparatus An electron beam with a circular cross section is flattened to form a flat electron beam with a flattened cross section. Then, the flat electron beam is irradiated onto a target, thereby generating an X-ray. Since the flat electron beam has high energy density, the ... | 04/15/2008 |
| 7352846 | Filament for X-ray tube and X-ray tube having the same A coiled filament for an X-ray tube has a varied coil pitch to obtain a good uniformity of the longitudinal temperature distribution. The filament has a central region including plural turns having a same coil pitch, and end regions which include plural turns each o... | 04/01/2008 |
| 7352840 | Micro CT scanners incorporating internal gain charge-coupled devices The present invention provides internal gain charge coupled devices (CCD) and CT scanners that incorporate an internal gain CCD. A combined positron emission tomography and CT scanner is also provided. ... | 04/01/2008 |
| 7340029 | X-ray computed tomography apparatus for fast image acquisition An x-ray computed tomography apparatus has a stationary device (3) for generating x-ray radiation from an x-ray focus that moves around the examination volume on a target that at least partially surrounds an examination volume of the apparatus in one plane. F... | 03/04/2008 |
| 7340036 | X-ray generator An X-ray generator includes an electron source generating an electron beam, a target generating an X-ray by a collision of the electron beam and extending in a direction orthogonal to the electron beam, and a cylindrical electrode covering a collision portion of the... | 03/04/2008 |
| 7333592 | X-ray tube An X-ray tube includes an electron gun in which a Wehnelt electrode is formed with an opening asymmetric about an electron emitter. The electron emitter is an elongate coil filament which is disposed inside the elongate opening of the Wehnelt electrode. The opening ... | 02/19/2008 |
| 7330533 | Compact x-ray source and panel A compact, self-contained x-ray source, and a compact x-ray source panel having a plurality of such x-ray sources arranged in a preferably broad-area pixelized array. Each x-ray source includes an electron source for producing an electron beam, an x-ray conversion t... | 02/12/2008 |
| 7327829 | Cathode assembly An improved cathode assembly, including a filament for producing an electron stream having a highly uniform cross sectional density. The cathode assembly comprises a support base, a cathode cup affixed to the support base, and a filament disposed in a slot defined o... | 02/05/2008 |
| 7312461 | Laparoscopic tumor therapy using high energy electron irradiation A laparoscopic tumor therapy method and an articulated electron beam transport system are provided for use with a high power, long focus electron source for tumor therapy. The high power, long focus electron source generates an e-beam. The e-beam is transported thro... | 12/25/2007 |
| 7310409 | Electromagnetic wave generator A compact and low-cost electromagnetic wave generator in which X-rays having high intensity can be generated and the energy of generated X-rays can rapidly be switched. In an electromagnetic wave generator including a circular accelerator, a deflection electromagnet... | 12/18/2007 |
| 7305066 | X-ray generating equipment An X-ray generating apparatus for generating X-rays by irradiating a target with an electron beam. Wherein the apparatus includes a vibration applying means for vibrating the target in directions parallel to a surface thereof. A colliding spot of the electron beam i... | 12/04/2007 |
| 7298826 | X-ray generator An X-ray generator of this invention has an X-ray monitor that monitors a state of an X-ray emitted from a target. Hence the state of the X-ray can be monitored in real time to maintain the X-ray in a constant state. The X-ray monitor is positioned off the path on w... | 11/20/2007 |
| 7289603 | Shield structure and focal spot control assembly for x-ray device A shield structure and focal spot control assembly is provided for use in connection with an x-ray device that includes an anode and cathode disposed in a vacuum enclosure in a spaced apart arrangement so that a target surface of the anode is positioned to receive e... | 10/30/2007 |
| 7286644 | Systems, methods and devices for x-ray device focal spot control Systems, methods and devices for implementing automatic control of focal spot Z axis positioning are disclosed for use with an x-ray device having an x-ray tube positioned within a housing and configured for thermal communication with a temperature control system. C... | 10/23/2007 |
| 7284905 | X-ray radiator, x-ray device and computed tomography apparatus with focus position determining capability An x-ray radiator has a radiator housing from which x-ray radiation originating from a focus is emitted. A pre-diaphragm is disposed in the beam path of the x-ray radiation and has a diaphragm opening in or on the radiator housing. The pre-diaphragm is provided with... | 10/23/2007 |
| 7286639 | Focal spot sensing device and method in an imaging system A focal spot sensing device includes: a housing that resists x-ray beams; an opening disposed in a wall of the housing that allows an x-ray beam to enter the housing; and a sensor device disposed in the housing that interprets a position of the x-ray beam for calcul... | 10/23/2007 |
| 7280637 | Systems, apparatus and methods for X-ray imaging A cathode cup is provided. The cathode cup includes one or more pockets; and one or more filaments associated with the one or more pockets. A same number of pockets as filaments are present. Each pocket is associated with exactly one filament and is configured to ha... | 10/09/2007 |
| 7280636 | Device and method for producing a spatially uniformly intense source of x-rays An x-ray source for producing a uniformly intense area x-ray beam. The x-ray source includes a vacuum chamber. An area electron emitter is disposed at a first end of the vacuum chamber. A target material is disposed at a second end of the vacuum chamber and spaced a... | 10/09/2007 |
| 7266179 | X-ray radiator with collimated focal spot position detector An x-ray radiator with an anode accommodated in a housing such that it can rotate around an axis has a device for determination of the position of an x-ray-emitting focal spot on the anode. To increase the measurement precision, the device includes a collimator alig... | 09/04/2007 |
| 7257194 | Cathode head with focal spot control A cathode head is provide that is suitable for use in an x-ray device that includes an anode having a target surface configured and arranged to receive electrons emitted by the cathode head. The cathode head may be constructed of magnetic or non-magnetic material an... | 08/14/2007 |
| 7257193 | X-ray source assembly having enhanced output stability using tube power adjustments and remote calibration An x-ray source assembly includes an anode having a spot upon which electrons impinge based on power level supplied to the assembly, and an optic coupled to receive divergent x-rays generated at the spot and transmit output x-rays from the assembly. A control system... | 08/14/2007 |
| 7233647 | Radiation window and method of manufacture A radiation window device to transmit radiation as part of an x-ray source or detector includes a support to be subject to a substantial vacuum, and an opening configured to transmit radiation. A film is mounted directly on the support across the opening, and has a ... | 06/19/2007 |
