Class / Patent application number | Description | Number of patent applications / Date published |
378137000 | With electron scanning or deflecting means | 29 |
20080198970 | COMPACT SCANNED ELECTRON-BEAM X-RAY SOURCE - A compact, reliable scanning electron-beam x-ray source achieves reduced complexity and cost. In particular, the x-ray source includes an electron beam that is propagated parallel to an x-ray target and is swept across the target in response to a moving magnetic cross field. Rather than scanning the beam by deflecting it about a single point, the point of deflection is translated along the target length, dramatically reducing the volume of the device. The magnetic cross field is translated along the target length using either mechanical systems to move permanent magnets, or electrical systems to energize an array of electromagnets. | 08-21-2008 |
20080317208 | Radiation Source and Method of Operating a Radiation Source in a Measurement Tool - A radiation source for a measurement tool includes an electron source configured to provide an electron beam, an anode configured to emit X-ray radiation under irradiation with the electron beam, and a deflection unit arranged between the electron source and the anode and operable to deflect the electron beam. | 12-25-2008 |
20090154649 | X-RAY TUBE WHOSE ELECTRON BEAM IS MANIPULATED SYNCHRONOUSLY WITH THE ROTATIONAL ANODE MOVEMENT - It is described an X-ray tube ( | 06-18-2009 |
20090154650 | X-RAY GENERATOR - The electron beam corresponding to radiation intensity data | 06-18-2009 |
20090190719 | X-RAY SOURCE APPARATUS, COMPUTER TOMOGRAPHY APPARATUS, AND METHOD OF OPERATING AN X-RAY SOURCE APPARATUS - An X-ray source apparatus ( | 07-30-2009 |
20090262899 | BETATRON WITH A YOKE MADE OF COMPOSITE POWDER - A betatron is provided, particularly for an x-ray inspection station, and includes a rotationally symmetrical inner yoke that is composed of two spaced-apart pieces, an outer yoke which connects the two pieces of the inner yoke, at least one main field coil, and at least one toroidal betatron tube located between the pieces of the inner yoke. At least part of the inner yoke and/or the outer yoke can be made of a composite powder. | 10-22-2009 |
20090279668 | APPARATUS FOR REDUCING KV-DEPENDENT ARTIFACTS IN AN IMAGING SYSTEM AND METHOD OF MAKING SAME - An x-ray tube includes a cathode positioned within a vacuum chamber and configured to emit electrons. The x-ray tube includes an anode positioned within the vacuum chamber to receive electrons emitted from the cathode and configured to generate a beam of x-rays from the electrons, a window positioned to pass the beam of x-rays therethrough, and an electron collector structure attached to the x-ray tube having an aperture formed therethrough to allow passage of x-rays therethrough. The aperture is shaped to prevent diffracted x-rays from combining with the beam of x-rays passing through the window. | 11-12-2009 |
20100020937 | ELECTRON OPTICAL APPARATUS, X-RAY EMITTING DEVICE AND METHOD OF PRODUCING AN ELECTRON BEAM - It is described an electron optical arrangement, a X-ray emitting device and a method of creating an electron beam. An electron optical apparatus ( | 01-28-2010 |
20100172475 | FAST DOSE MODULATION USING Z-DEFLECTION IN A ROTARING ANODE OR ROTARING FRAME TUBE - A fast dose modulation using a z-deflection in a rotating anode or a rotating frame tube, where the electron beam is deflected from a first focal spot region to a second focal spot region being formed on the anode, wherein only the electromagnetic beam generated in the first focal spot region contributes to the useful electromagnetic exposure beam, wherein the second focal spot region is designed to avoid emission of electromagnetic beams into the direction of a useful electromagnetic beam direction. | 07-08-2010 |
20100177874 | X-RAY TUBE AND METHOD OF VOLTAGE SUPPLYING OF AN ION DEFLECTING AND COLLECTING SETUP OF AN X-RAY TUBE - 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 second electrode has either an actively or a passively generated negative voltage, compared to ground potential. Further, the invention relates to a method of voltage supplying of a deflecting and collecting setup (IDC) consisting of a single pair of electrode, wherein the first electrode has a positive voltage potential and the second electrode has either an actively or a passively generated negative voltage, compared to ground potential. | 07-15-2010 |
20110007876 | Graphite Backscattered Electron Shield for Use in an X-Ray Tube - The present invention is a shielded anode having an anode with a surface facing an electron beam and a shield configured to encompass the anode surface. The shield has at least one aperture and an internal surface facing the anode surface. The shield internal surface and anode surface are separated by a gap in the range of 1 mm to 10 mm. The shield of the present invention is fabricated from a material, such as graphite, that is substantially transmissive to X-ray photons. | 01-13-2011 |
20110188638 | Magnetron Powered Linear Accelerator For Interleaved Multi-Energy Operation - The disclosure relates to systems and methods for interleaving operation of a linear accelerator that use a magnetron as the source of electromagnetic waves for use in accelerating electrons to at least two different ranges of energies. The accelerated electrons can be used to generate x-rays of at least two different energy ranges. In certain embodiments, the accelerated electrons can be used to generate x-rays of at least two different energy ranges. The systems and methods are applicable to traveling wave linear accelerators. | 08-04-2011 |
20110216886 | Interleaving Multi-Energy X-Ray Energy Operation Of A Standing Wave Linear Accelerator - The disclosure relates to systems and methods for interleaving operation of a standing wave linear accelerator (LINAC) for use in providing electrons of at least two different energy ranges, which can be contacted with x-ray targets to generate x-rays of at least two different energy ranges. The LINAC can be operated to output electrons at different energies by varying the power of the electromagnetic wave input to the LINAC, or by using a detunable side cavity which includes an activatable window. | 09-08-2011 |
20120177185 | X-RAY TUBE WITH HIGH SPEED BEAM STEERING ELECTROMAGNETS - The present embodiments relate to efficient electron beam steering within X-ray tubes, for example X-ray tubes used in CT imaging. In one embodiment, and X-ray tube with enhanced electron beam steering is provided. The X-ray tube includes an electron beam source, a target configured to generate X-rays when impacted by an electron beam from the electron beam source, and a steering magnet assembly having a plurality of ferrite cores and a plurality of litz wire coils wound on the ferrite cores. | 07-12-2012 |
20120177186 | X-RAY TUBE WITH SECONDARY DISCHARGE ATTENUATION - The present embodiments relate to off-focal X-ray radiation attenuation within X-ray tubes, for example X-ray tubes used in CT imaging. In one embodiment, an X-ray tube for off-focal X-ray radiation attenuation is provided. The X-ray tube includes a cathode, a target, and a magnetic focal spot control unit having at least one electromagnet encased in a resin loaded with X-ray attenuating material. | 07-12-2012 |
20120321049 | System and Method for X-Ray Source Weight Reduction - The invention provides an X-ray source having a generator for generating an electron beam, an accelerator for accelerating the generated electron beam in a desired direction, one or more magnetic elements for transporting portions of the electron beam in a more than one desired direction, and a shaped target made from a material having an atomic number lying within a predetermined range of values, the transported parts of the electron beam producing a fan beam of X rays upon striking the shaped target. | 12-20-2012 |
20130301805 | ALIGNING AND FOCUSING AN ELECTRON BEAM IN AN X-RAY SOURCE - A technique for indirectly measuring the degree of alignment of a beam in an electron-optical system including aligning means, focusing means and deflection means. To carry out the measurements, a simple sensor may be used, even a single-element sensor, provided it has a well-defined spatial extent. When practiced in connection with an X-ray source which is operable to produce an X-ray target, further, a technique for determining and controlling a width of an electron-beam at its intersection point with the target. | 11-14-2013 |
20140056412 | INTEGRATED FLYING-SPOT X-RAY APPARATUS - Disclosed is an integrated flying-spot X-ray apparatus comprising a ray generator configured to generate the X-ray, a revolving collimator device provided thereon with at least one aperture and arranged to be rotatable about the ray generator, a frameless torque motor configured to drive the revolving collimator device to rotate about the ray generator, and a cooling device configured to cool the ray generator, wherein the ray generator, the revolving collimator device, the frameless torque motor and the cooling device are mounted on an integrated mounting frame. Compared with the prior art, the integrated flying-spot X-ray apparatus according to the present disclosure has a simple and compact structure and is used as a kernel apparatus for fields of safety inspection and medical treatment. | 02-27-2014 |
20140064456 | MOTION CORRECTION SYSTEM AND METHOD FOR AN X-RAY TUBE - A motion correction system and method for motion correction for an x-ray tube is presented. One embodiment of the motion correction system includes a sensing unit coupled to an x-ray tube to determine a distance with which an impingement location of an electron beam generated by the x-ray tube deviates from a determined location due to motion of the x-ray tube. The motion correction system further includes a control unit coupled to the sensing unit to generate a control signal corresponding to the distance with which the impingement location of the electron beam deviates. Also, the motion correction system includes a deflection unit coupled to the control unit to steer the electron beam to the determined location based on the generated control signal. | 03-06-2014 |
20140112451 | CONVERGENT PHOTON AND ELECTRON BEAM GENERATOR DEVICE - A piece of scientific/technological equipment is presented for the generation of a convergent photon beam for radiotherapy or other applications. This equipment consists of adequately modifying the trajectory of an electron beam from a linear accelerator (LINAC) by applying magnetic and/or electric fields. These electrons perpendicularly impact the surface of a curved material that has a particular curvature ratio (anode), thus generating X-rays. The interaction of the electrons with the atoms of the anode's material generate X-rays with a non-isotropic angular-spatial distribution, with a greater concentration in the focal direction, which is defined by the geometry of the anode. A curved collimator with an adequate curvature ratio is attached to the back of the anode. The collimator is made up of an array of a great number of small holes that point toward the focal point. This device transmits X-rays solely in the focal direction. The Summary Figure presents a typical configuration of the invention that has been presented. | 04-24-2014 |
20140169530 | X-RAY TUBE WITH ADJUSTABLE ELECTRON BEAM - An X-ray tube assembly is provided including an emitter configured to emit an electron beam, an emitter focusing electrode, an extraction electrode, and a downstream focusing electrode. The emitter focusing electrode is disposed proximate to the emitter and outward of the emitter in an axial direction. The extraction electrode is disposed downstream of the emitter and the emitter focusing electrode. The extraction electrode has a negative bias voltage setting at which the extraction electrode has a negative bias voltage with respect to the emitter. The downstream focusing electrode is disposed downstream of the extraction electrode, and has a positive bias voltage with respect to the emitter. When the extraction electrode is at the negative bias voltage setting, the electron beam is emitted from an emission area that is smaller than a maximum emission area from which electrons may be emitted. | 06-19-2014 |
20140219424 | Electron Beam Focusing and Centering - A method and device for control of an electron beam flux, electron spot size, and/or electron spot location. Electromagnetic radiation from an anode of the x-ray tube can be focused on a detector. The detector can send a signal to a control module based on the electromagnetic radiation focused on the detector. The control module can control the electron beam with a beam control device and/or a current control device. The signal can also indicate anode temperature at the electron spot. | 08-07-2014 |
20140241508 | RADIATION IRRADIATION DEVICE, RADIATION IRRADIATION METHOD AND PROGRAM STORAGE MEDIUM - A radiation irradiation device is provided that includes: a metal target that emits bremsstrahlung X-rays as a radiation beam due to irradiation with an electron beam; a radiation shielding member that includes a slit-shaped radiation passage portion and that is disposed downstream of the metal target in the radiation beam emission direction and is disposed such that a portion of the radiation beam passes through the radiation passage portion and the radiation beam incident to regions other than the radiation passage portion is blocked; and an electron beam generating device that irradiates, onto the metal target, an electron beam such that a diameter at a generation point of the emitted radiation beam is smaller than a length of an entry portion of the radiation passage portion along a length direction of the entry portion. | 08-28-2014 |
20140328467 | APPARATUS AND METHOD FOR GENERATING X-RAY RADIATION - The present invention relates to an apparatus ( | 11-06-2014 |
20150043719 | COMPACT SELF-RESONANT X-RAY SOURCE - The present invention discloses an X-ray source which uses a rectangular cavity resonator, which is excited with a microwave TE | 02-12-2015 |
20150117616 | X-RAY GENERATION DEVICE AND X-RAY GENERATION METHOD - An X-ray generation device is provided with an electron gun unit for emitting an electron beam, and a target unit having a substrate comprised of diamond, and a target body comprised of a material for generating X-rays with incidence of the electron beam thereto and buried in close contact in the substrate. An outer diameter of the target body is in the range of 0.05 to 1 μm. An outer diameter of an irradiation field of the electron beam on the target unit is in the range of 1.1 to 2.5 times the outer diameter of the target body. The X-ray generation device irradiates the target body with the electron beam so that the target body is included in the irradiation field, thereby to generate X-rays from the target body. | 04-30-2015 |
20150139403 | X-Ray Tube - An x-ray tube with a vacuum housing includes a cathode chamber with a cathode arrangement, an anode chamber with an anode arrangement, and a drift path disposed between the cathode chamber and the anode chamber. The drift path is surrounded by a magnet arrangement. The magnet arrangement is a self-supporting construction. | 05-21-2015 |
20150340191 | Positioning Apparatus for an Electron Beam - A positioning apparatus is provided for an electron beam of an electron tube, the apparatus including a first DC voltage circuit having a high potential difference and a second DC voltage circuit having a smaller potential difference, having in each case a first potential level and a second potential level, and a deflection module, which has two inputs and at least one deflection coil, wherein the at least one deflection coil is connected between the two inputs of the deflection module. | 11-26-2015 |
20160172149 | X-RAY TUBE ASSEMBLY | 06-16-2016 |