William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8094784 | X-ray sources The present invention is directed to an anode for an X-ray tube. The X-ray tube has an electron aperture through which electrons emitted from an electron source travel subject to substantially no electrical field and a target in a non-parallel relationship to the el... | 01/10/2012 |
| 7991120 | Multi X-ray generating apparatus and X-ray imaging apparatus A multi X-ray generating apparatus which has a plurality of electron sources arranged two-dimensionally and targets arranged at positions opposite to the electron sources includes a multi electron source which includes a plurality of electron sources and outputs ele... | 08/02/2011 |
| 7949101 | X-ray scanners and X-ray sources therefor The present invention is directed toward an X-ray scanner that has an electron source and an anode. The anode has a target surface with a series of material areas spaced along it in a scanning direction. The material areas are formed from different materials. The el... | 05/24/2011 |
| 7949102 | Multiple focal spot X-ray tube with multiple electron beam manipulating units 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 spo... | 05/24/2011 |
| 7869571 | Methods and apparatus for x-ray imaging with focal spot deflection Methods and apparatus for x-ray imaging with focal spot deflection are provided. The apparatus includes an x-ray tube having a cathode configured to emit electrons and an anode having a target with a target surface defining a target angle. The emitted electrons are ... | 01/11/2011 |
| 7809113 | X-ray source and fluorescent X-ray analyzing apparatus The present invention relates to an X-ray source for emitting a characteristic X-ray and a fluorescent X-ray analyzing apparatus using the X-ray source. A secondary target is arranged in superposition on a primary target. An electron beam generated by an electron gu... | 10/05/2010 |
| 7660392 | Pixel array arrangement for a soft x-ray source A pixel array arrangement is provided for a soft x-ray source. The arrangement includes: a window-frame structure having a plurality of channels passing therethrough, where each channel forms a pixel for the x-ray source; a cathode disposed on one side of each chann... | 02/09/2010 |
| 7535992 | X-ray diffraction apparatus An X-ray diffraction apparatus allows plural kinds of characteristic X-rays to be incident on a sample at the same time and thus allows X-ray diffraction measurement with the plural kinds of characteristic X-rays to be carried out at the same time. An X-ray tube inc... | 05/19/2009 |
| 7505563 | X-ray sources An anode for an X-ray source is formed in two parts, a main part and a collimating part. The main part has the target region formed on it. The two parts between them define an electron aperture through which electrons pass to reach the target region, and an X-ray ap... | 03/17/2009 |
| 7391851 | EUV, XUV, and X-Ray wavelength sources created from laser plasma produced from liquid metal solutions Metallic solutions at room temperature used a laser point source target droplets. Using the target metallic solutions results in damage free use to surrounding optical components since no debris are formed. The metallic solutions can produce plasma emissions in the ... | 06/24/2008 |
| 7359486 | Structure for collecting scattered electrons A structure for collecting scattered electrons within a substantially evacuated vessel containing both an electron-emitting cathode and an electron-attracting anode is disclosed herein. The electron-collecting structure includes a two-sided first plate, a two-sided ... | 04/15/2008 |
| 7349525 | X-ray sources An anode for an X-ray source is formed in two parts, a main part (18) and a collimating part (22). The main part (18) has the target region (20) formed on it. The two parts between them define an electron aperture (36) through whic... | 03/25/2008 |
| 7317784 | Multiple wavelength X-ray source A multiple wavelength X-ray source includes an electron-generating cathode and an anode with multiple target regions, each of which emits X-rays at a different characteristic wavelength in response to the electrons. The different X-ray radiation outputs are focused ... | 01/08/2008 |
| 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 |
| 7308078 | X-ray micro-target source X-ray generation apparatus including an elongated target body and a mount from which the body projects to a tip remote from the mount. The target body includes a substance that, on being irradiated by a beam of electrons of suitable energy directed onto the target b... | 12/11/2007 |
| 7305063 | Cylindrical x-ray tube for computed tomography imaging A computed tomography imaging system includes an x ray tube (12, 212) that injects an x ray conebeam into an examination region (14). The x ray tube (12, 212) includes a rotating cylindrical anode (30, 230, 330, 430) having a target outer... | 12/04/2007 |
| 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 |
| 7248672 | Multiple-position x-ray tube for diffractometer An x-ray source provides both a line focus output and a point focus output, and is mounted on a rotatable support to allow easy changing between the two. A housing has ports at different angular positions relative to an anode, and each port has an associated optic a... | 07/24/2007 |
| 7212603 | Device for capturing structural data of an object To simplify the reconstruction of structural data of an object (7) examined using a tomography device (1), it is proposed to implement a radiation source (4) in such a way that radiation bundles (6) with parallel beam geometry are produce... | 05/01/2007 |
| 7206373 | Computed tomography gantry To enlarge the angle range to be covered, with a simultaneously smaller variance of the focal spots, in a gantry for a computed tomography at least two x-ray tubes are provided for generation of an x-ray beam instead of a single x-ray tube. The respective x-ray beam... | 04/17/2007 |
| 7206379 | RF accelerator for imaging applications The present invention is an RF cavity for accelerating electrons in imaging applications such as x-ray tubes and CT applications. An RF cavity having electron emitters placed therein accelerates the electrons across the cavity. The geometric shape of the cavity dete... | 04/17/2007 |
| 7203283 | X-ray tube of the end window type, and an X-ray fluorescence analyzer In an x-ray tube comprising a housing, which define an enclosure, a cathode arrangement, which emits electrons within the enclosure, and a window, which seals an end of the enclosure, the window comprises a carrier layer and, on a side of the carrier layer that face... | 04/10/2007 |
| 7200203 | Devices and methods for targeting interior cancers with ionizing radiation Devices and related methods are provided for irradiating a portion of a body. A device according to one embodiment can include a radiation needle, a fluorescent target, and an x-ray transmitting window. The radiation needle can include a radiation conduit having a f... | 04/03/2007 |
| 7197116 | Wide scanning x-ray source An imaging tube (12) includes a cathode (30) that emits an electron beam (32) and an anode (38). The anode (38) includes multiple target surfaces (36). Each of the target surfaces (36) has a focal spot that receives t... | 03/27/2007 |
| 7190764 | Electron accelerator and radiotherapy apparatus using same A small and light-weighted electron accelerator (2, 40, 60) using a fixed-field alternating gradient of high electron beam intensity is provided with a vacuum container (10), an electric magnet (20) provided in the vacuum container, an electron ... | 03/13/2007 |
| 7187756 | X-ray CT apparatus and X-ray tube An X-ray CT apparatus capable of imaging a subject based on X-rays of multiple energy levels while using an ordinary X-ray detector includes an X-ray tube which generates X-rays from multiple focal points of different 3-dimensional positions sequentially on a time-d... | 03/06/2007 |
| 7187748 | Multidetector CT imaging method and apparatus with reducing radiation scattering A method for scanning an object to reduce image degradation includes scanning the object in a helical mode using a multi-slice CT imaging system having a plurality of detector arrays arranged along a z-axis direction and a radiation source having a beam focal spot. ... | 03/06/2007 |
| 7180981 | High quantum energy efficiency X-ray tube and targets The invention relates to targets for an X-ray transmission tube (9); to a high efficiency, high excitation energy X-ray transmission tube; to combinations of the targets and high efficiency X-ray transmission tubes; and applications for utilizing such X-ray t... | 02/20/2007 |
| 7120222 | CT imaging system with multiple peak x-ray source An x-ray source (32) for performing energy discrimination within an imaging system (10) includes a cathode-emitting device (82) emitting electrons and an anode (81) that has a target (80) whereupon the electrons impinge to generate... | 10/10/2006 |
| 7095038 | EUV source The EUV radiation source of the invention comprises an irradiation chamber (1) containing an irradiation zone (3) into which a stream of radiation-generator material is generated such as a flow of xenon propagating along a direction (II—II) extending... | 08/22/2006 |
| 7065179 | Multiple target anode assembly and system of operation An anode assembly having multiple target electrodes is disclosed. Each target electrode produces an x-ray fan beam for radiographic data acquisition. The target electrodes are designed to sequentially generate an x-ray fan beam and therefore operate at a proportiona... | 06/20/2006 |
| 7065174 | Measurement arrangement for X-ray fluoresence analysis A portable measurement apparatus is presented for inducing and measuring fluorescent X-ray radiation. It comprises an X-ray source (303, 902, 1005, 1105) adapted to controllably irradiate a sample (301, 803) with X-rays, and a detector (305, 406, 10... | 06/20/2006 |
| 7050543 | Microfocus X-ray tube A microfocus X-ray tube is provided, and comprises a head that during operation of the X-ray tube faces an object that is to be inspected. The head has an outer surface with a cross-section that tapers toward a free end of the head. A target is disposed on or in the... | 05/23/2006 |
| 7050540 | X-ray micro-target source X-ray generation apparatus including an elongated target body and a mount from which the body projects to a tip remote from the mount. The target body includes a substance that, on being irradiated by a beam of electrons of suitable energy directed onto the target b... | 05/23/2006 |
| 7023950 | Method and apparatus for determining the position of an x-ray cone beam produced by a scanning electron beam A Laminography system with x-ray source and a detector assembly. The x-ray source uses a narrow, deflected pencil beam to scan to a linear target. An x-ray cone beam detected by the detector assembly is produced where the electron beam strikes the target. The target... | 04/04/2006 |
| 7012989 | Multiple grooved x-ray generator An X-ray tube has a metal-ceramic envelope having rotatably mounted therein an anode disk, which may be axially translatable and provided with a peripheral rim surface wherein a focal track spiral groove (or multiple annular grooves) is disposed. The groove(s) inclu... | 03/14/2006 |
| 7003077 | Method and apparatus for x-ray anode with increased coverage The present invention is an x-ray tube anode with two targets oriented back-to-back. The targets have separate and opposing cathodes. The targets are a fixed distance apart and rotate together on the same bearing shaft. The cathodes are mounted at either end of the ... | 02/21/2006 |
| 6993115 | Forward X-ray generation X-ray generator devices and methods for operating the same that utilizes anodes comprising thin cylinders to generate characteristic X-ray spectra, which emerges from the cylinders axially, as an intense beam. ... | 01/31/2006 |
| 6983035 | Extended multi-spot computed tomography x-ray source Systems and methods for obtaining multi-slice images having a total thickness of up to about 160 mm or more in a single gantry rotation in computed tomography or volume computed tomography are described. One embodiment comprises an extended, multi-spot x-ray source ... | 01/03/2006 |
| 6975703 | Notched transmission target for a multiple focal spot X-ray source A flat panel x-ray tube assembly is provided comprising a cathode assembly including a plurality of emitter elements. An anode substrate is included having a substrate upper surface facing the plurality of emitter elements and a substrate lower surface. The substrat... | 12/13/2005 |