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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7672432 | X-ray machine and related voltage generator A voltage generator for an X-ray machine comprising an X-ray tube with a cathode and an anode is described. The voltage generator comprises a negative voltage multiplier for supplying a polarization voltage to the X-ray tube and a filament transformer which can be c... | 03/02/2010 |
| 7668295 | System and method for high voltage transient suppression and spit protection in an x-ray tube A system and method to improve the high voltage performance of an x-ray tube with electrostatic deflection of an electron beam focal spot. The system and method provides protection of bias circuits from high voltage transients and spit protection in x-ray tubes thro... | 02/23/2010 |
| 7664228 | X-ray imaging apparatus and detector panel A detector panel incorporates an X-ray detector, an electronic circuit for interface, and a battery for power supply, and also includes a measurement device for measuring the remaining power of the battery, and a determination device for determining if the operation... | 02/16/2010 |
| 7564948 | High voltage x-ray generator and related oil well formation analysis apparatus and method An apparatus and method for determining the density and other properties of a formation surrounding a borehole using a high voltage x-ray generator. One embodiment comprises a stable compact x-ray generator capable of providing radiation with energy of 260 keV and h... | 07/21/2009 |
| 7526067 | Electrical power supply for an X-ray tube and method for putting it into operation An electrical power supply for an X-ray tube comprising a current source, a transformer with a primary circuit and a secondary circuit coupled with a resistor (R), the unit supplying a high-voltage generator provided with an equivalent input capacitor is used, when ... | 04/28/2009 |
| 7499524 | Methods and apparatus for mobile imaging systems A system for reconstructing an image of an object includes a mobile imaging system, and a user removable module configured to be attached to the mobile imaging system. ... | 03/03/2009 |
| 7496178 | Portable x-ray device Portable x-ray devices and methods for using such devices are described. The devices have an x-ray tube powered by an integrated power system. The x-ray tube is shielded with a low-density insulating material containing a high-Z substance. The devices can also have ... | 02/24/2009 |
| 7450689 | X-ray apparatus An X-ray apparatus comprises a general switch designed to eliminate the residual energy stored in capacitances of this X-ray apparatus. To this end, the general switch comprises several series-connected switch cells, each comprising a switch component constituted by... | 11/11/2008 |
| 7440548 | X-ray device with an x-ray source fixed to a ceiling stand The invention relates to an x-ray device with an x-ray source fixed to a ceiling stand and a generator connected therewith in order to supply voltage. In order to achieve as compact an arrangement as possible, it is proposed in accordance with the invention to provi... | 10/21/2008 |
| 7440547 | CT scanner A CT scanner which collects X-ray projection data of a subject and which generates an image in the subject from the projection data, the CT scanner includes tubes which emit X-rays and which include grids to switch emission and stoppage of the X-rays, a unit which g... | 10/21/2008 |
| 7425096 | Gantry for an X-ray device The invention relates to a gantry for an x-ray device. According to the invention at least one screening device used to reduce interactions with electromagnetic disturbance fields is provided for the at least one transmitter for the non-contact power or signal trans... | 09/16/2008 |
| 7410297 | Apparatus for controlling radiation in a radiation generator An apparatus to control transmission of an electromagnetic radiation generated by a radiation source of a radiation generator is provided. The radiation source includes an anode opposite a cathode. The apparatus comprises at least one printed circuit board assembly ... | 08/12/2008 |
| 7400708 | X-ray generator and X-ray CT apparatus comprising same In an X-ray generating device of the neutral grounding system, to remove an unbalance voltage generated due to difference in impedance of parallel transformer coils of the high voltage transformer and particularly an unbalance voltage involved with difference in imp... | 07/15/2008 |
| 7397896 | X-ray device An X-ray device having an X-ray source, a high voltage generator supplying power to the X-ray tube and an inverter to generate, at the output end, an AC input voltage for the high voltage generator is disclosed. Provision is made therein for a resonance network to b... | 07/08/2008 |
| 7391849 | Energy monitoring target for x-ray dose-rate control A target structure for an electron linear accelerator converts energy in an electron beam to x-rays and provides for the monitoring and control of the effective energy of the electron beam by collecting and processing a residual current in the target structure. ... | 06/24/2008 |
| 7375993 | High-voltage X-ray generator A power supply for a device which has a load, comprising a first resonant generator and a second resonant generator, coupled in parallel, each generator having a phase output. The power supply further comprises a control circuit coupled to the first and second gener... | 05/20/2008 |
| 7366374 | Multilayer optic device and an imaging system and method using same An optic device, system and method for imaging are described. The optic device includes a first solid phase layer having a first index of refraction with a first photon transmission property and a second solid phase layer having a second index of refraction with a s... | 04/29/2008 |
| 7356121 | System and method for supplying power to x-ray imaging systems Certain embodiments of the present invention provide a method for providing power to an x-ray imaging system including: sensing an electrical signal from a second power source; and routing the electrical signal from the second power source through at least one switc... | 04/08/2008 |
| 7340035 | X-ray tube cathode overvoltage transient supression apparatus An imaging tube (30) includes multiple high voltage elements (64). A voltage-clamping device (70) is coupled between the high voltage elements (64) and prevents the occurrence of overvoltage transients in the minor insulation of an imagin... | 03/04/2008 |
| 7336766 | X-ray system and its driving method An X-ray apparatus includes a rotary anode X-ray tube, a stator coil, and a drive-power-supply device. The rotary anode X-ray tube has an anode target arranged in a vacuum envelope, a rotary body coupled to the anode target and configured to rotate together with the... | 02/26/2008 |
| 7333589 | System and method for CT scanning of baggage The threat determination process for CT scan of baggage eliminates the need for complete reconstruction the bag. The CT scan data is analyzed during scanning to locate potential threats. The analysis is based upon a lineogram representing objects in the bag. The mas... | 02/19/2008 |
| 7327827 | X-ray high voltage device A semiconductor switch 12 connected in series with a smoothing capacitor 12 is constituted by connecting in parallel a diode 13D which permits to flow current regenerated from energy of electric charges stored in a high voltage capacitor 17 | 02/05/2008 |
| 7324625 | Contraband detection systems using a large-angle cone beam CT system A contraband detection system using a cone beam computed tomography scanner. The cone beam scanner allows for rapid acquisition of data for computing three dimensional density maps of objects within items under inspection. Where greater resolution is desired, the im... | 01/29/2008 |
| 7317783 | Reduced X-Ray exposure using power modulation An X-ray imaging system includes an X-ray source operable to generate an X-ray beam, an X-ray receiver receiving the X-ray beam, a power generator generating power to the X-ray source to generate the X-ray beam, a grid disposed between the X-ray source and the X-ray... | 01/08/2008 |
| 7304436 | Generator for sustaining pulse of plasma display panel It is disclosed that there is a sustaining pulse generator of a plasma display panel capable of simplifying a circuit configuration thereof. A sustaining pulse generator of a plasma display panel according to an embodiment of the present invention includes a ... | 12/04/2007 |
| 7305065 | X-ray generator with voltage doubler Between terminals of secondary windings in a high-voltage transformer (3), there are connected in parallel input side terminals of a plurality of diode full bridge circuits each via voltage maintaining means such as a capacitor maintaining a voltage peak valu... | 12/04/2007 |
| 7295691 | Computer aided diagnosis of an image set A method, system, and storage medium for computer aided processing of an image set includes employing a data source, the data source including an image set acquired from X-ray projection imaging, x-ray computed tomography, or x-ray tomosynthesis, defining a region o... | 11/13/2007 |
| 7288928 | Solenoidal Hall effects current sensor A device for measuring anode tube current or filament current in an X-ray tube, comprising a coil of wire wrapped around an insulating tube to generate a solenoidal magnetic field, one or more pieces of magnetic material and insulating material located within the tu... | 10/30/2007 |
| 7286642 | X-ray tube control apparatus and x-ray tube control method A maximum tube voltage value setting module 240a, a warming-up module 240b, a limit tube voltage control module 240c, a limit tube current control module 240d and a focus grid electrode control module 240 | 10/23/2007 |
| 7224770 | X-ray apparatus with adapted waiting time between successive exposures X-ray apparatus has a radiation source operated by a voltage generator, a digital solid-state radiation detector and a control device controlling the operation of the apparatus. The control device determines a waiting time between two successive image acquisitions, ... | 05/29/2007 |
| 7224769 | Digital x-ray camera Portable x-ray devices and methods for using such devices are described. The devices have an x-ray tube powered by an integrated power system. The x-ray tube is shielded with a low-density insulating material containing a high-Z substance. The devices can also have ... | 05/29/2007 |
| 7218500 | High-voltage generator and accelerator using same In a high-voltage generator including a CW circuit (high-voltage circuit), where the CW circuit generates a high voltage through booster circuits that are provided for boosting an input voltage and connected to one another in multiple stages, a conductive shielding ... | 05/15/2007 |
| 7197114 | X-rays emitter and X-ray apparatus and method of manufacturing an X-ray emitter An X-ray emitter and an X-ray apparatus and method of manufacturing an x-ray emitter. The emitter has an anode, a cathode, and a vacuum evacuated body in which the anode and the cathode are placed. The body has an opening and a high-voltage connector placed in the o... | 03/27/2007 |
| 7197113 | Contactless power transfer system In accordance with one embodiment, a contactless power transfer system is provided that comprises a stationary member including a power input configured to receive power at first voltage from a power supply. The system further includes a rotating member rotatably co... | 03/27/2007 |
| 7187757 | Cooled radiation emission device A cooled radiation emission device has an enclosure in which X-rays are produced. In the enclosure, there is a cathode, an anode situated facing the cathode and rotating on a shaft, and a fixed anode shaft support. The support includes a holding chamber, the shaft o... | 03/06/2007 |
| 7164747 | Folded array CT baggage scanner A reduced size CT scanner for baggage inspection has a wide angle x-ray source and multiple sets of detectors at different distances from the x-ray source. The detectors in each set are sized and positioned to maintain consistent pitch and flux levels among all dete... | 01/16/2007 |
| 7158611 | Method for determining density distributions and atomic number distributions during radiographic examination methods The functional dependency of a first X-ray absorption value of density and atomic number is determined in the instance of a first X-ray spectrum, and at least the functional dependency of a second X-ray absorption value of density and atomic number is determined in ... | 01/02/2007 |
| 7150562 | High voltage cable terminal and clamp system A cable terminal and clamp system particularly suited for use in an x-ray tube environment. The cable terminal and clamp system includes a cable socket having cable and terminal ports, each of which defines an axis. The cable terminal and clamp system includes a cab... | 12/19/2006 |
| 7142639 | High voltage connector for x-ray tube A dielectric connector for use in high voltage devices, including x-ray tubes, is disclosed. The connector comprises a dielectric material and is pre-formed before attachment to the x-ray tube. Pre-formation of the connector creates a first cavity portion therein th... | 11/28/2006 |
| 7133495 | X-ray generator An X-ray generator 1 includes an X-ray tube 11 having a cathode portion 16, a grid electrode 15 and a target 22, a voltage controller 27 and 32 for controlling voltages to be applied to the cathode portion 16 a... | 11/07/2006 |
