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| Number | Title | Issue Date |
| 7696485 | Plasma panel based ionizing radiation detector A radiation detector is formed from a plasma panel that includes a front substrate, and a back substrate that forms a generally parallel gap with the front substrate. X (column) and Y (row) electrodes are coupled by gas discharge events to define one or more pixels.... | 04/13/2010 |
| 7369057 | Power generator and power generator auxiliary monitoring A generator monitoring system and method includes a plurality of sensors (12) disposed within a generator enclosure (18) to sense health conditions of a generator (10) housed within the enclosure. The sensors are interconnected to provide a sing... | 05/06/2008 |
| 7287929 | Smart bollard A smart bollard includes a compartment wherein a smart bollard circuit may be located and the smart bollard circuit, in turn, includes at least one processor, a transceiver that may be connected in circuit with the processor and configured to communicate with a cent... | 10/30/2007 |
| 7271395 | Device and method for the measurement of depth of interaction using co-planar electrodes A device and method for measuring a depth of interaction of an ionizing event and improving resolution of a co-planar grid sensor (CPG) are provided. A time-of-occurrence is measured using a comparator to time the leading edge of the event pulse from the non-collect... | 09/18/2007 |
| 7271894 | Imaging system for robotically inspecting gas turbine combustion components A system for in situ inspection of a surface of a hot gas component of a turbine includes a robot having an elongated inspection arm extending toward the surface of the hot gas component; and an inspection head carried adjacent an end of the inspection arm remote fr... | 09/18/2007 |
| 7259369 | Dual mode ion mobility spectrometer and method for ion mobility spectrometry Ion mobility spectrometer apparatus may include an ion interface that is operable to hold positive and negative ions and to simultaneously release positive and negative ions through respective positive and negative ion ports. A first drift chamber is operatively ass... | 08/21/2007 |
| 7196325 | Glow discharge and photoionizaiton source A detector that may contain a glow discharge ionizer and a photo-ionizer. The existence of both ionizers may increase the accuracy and number of chemical compounds that can be simultaneously monitored for chemical screening applications. The detector is particularly... | 03/27/2007 |
| 7186986 | Radiation detector with converters A high efficiency radiation detector employs longitudinally extending converter elements receiving longitudinally propagating radiation to produce high-energetic electrons received by detector structures in interstitial spaces. The secondary electron generation in t... | 03/06/2007 |
| 7180076 | Photoionization detectors, ionization chambers for use in photoionization detectors, and methods of use of photoionization detectors A photoionization detector includes a housing, electrical contacts within the housing and an easily removable and replaceable photoionization chamber within the housing. The photoionization chamber includes a cathodic electrode and an anodic electrode which may be c... | 02/20/2007 |
| 7180070 | Radiation detector A radiation detector for imaging a sheet-shaped beam (11) of ionizing radiation comprises an electron multiplication chamber (12) filled with a medium for electron multiplication; and a solid multichannel structure (14) arranged in the path of t... | 02/20/2007 |
| 7135688 | Apparatus and method for the detection of the energy of ionizing electro-magnetic radiation A spectrometer system employs a gridless Xenon detector having an anode and a cathode supported in spaced relation from the anode devoid of structure intermediate the anode and cathode. Pulses resulting from charge collection due to radiation ionization of the Xenon... | 11/14/2006 |
| 7134761 | Arrangement and a method for emitting light An arrangement for emitting light includes a hermetically sealed casing with a window, a layer of a fluorescent substance arranged within the casing covering at least a major part of the window, an electron emitting cathode arranged within the casing, and an anode. ... | 11/14/2006 |
| 7127029 | Arrangement and method for obtaining tomosynthesis data A scanning-based arrangement for obtaining tomosynthesis data of an object (5) at high repetition rate comprises a support structure (11); scanning-based apparatuses (10) fixedly arranged on the support structure and each including (i) radiation... | 10/24/2006 |
| 7105831 | Ambient air alpha particles ionization detector An ionized alpha particle detector to directly measure alpha activity in ambient air that counts alpha pulses instead of measuring radon concentration is provided by an open-air ionization chamber, a means for collecting ions, a voltage source, a charging means and ... | 09/12/2006 |
| 7071674 | Micro-electrometer A voltmeter for measuring atmospheric or other voltages eliminates the dead band without application of high voltages or radioactive isotopes to increase conductivity in the region of the probe. A vacuum tube is operated at substantially reduced conduction in order ... | 07/04/2006 |
| 7064501 | Sawtooth line circuit for a cathode ray tube A circuit arrangement is described for generating a sawtooth current in a cathode ray tube deflection coil. The circuit arrangement has a first and a second multiresonant section. The sections are arranged in series. The cathode ray tube deflection coil is part of t... | 06/20/2006 |
| 7058110 | Excited state atomic line filters An excited state atomic line filter. The present invention solves the problem of lack of ground state resonant lines in at wavelengths substantially longer than those of visible light. Atomic line filters of the Faraday or Voigt crossed polarizer type are provided i... | 06/06/2006 |
| 7046012 | Ionization devices An ionization detector includes a third (fence) electrode (55) between the counter electrode (53) and the sensing electrode (54). The fence electrode (53) is maintained at or near the potential of the sensing electrode (54) and tra... | 05/16/2006 |
| 7038203 | Method for observing high-altitude neutral air and device for observing high-altitude neutral air Ion particles are discharged so as to be influenced by a magnetic field originated from the earth, and collided with high-altitude neutral air to generate high velocity neutral particles through charge exchange. The high velocity neutral particles are analyzed. The ... | 05/02/2006 |
| 6982549 | Micro-electrometer A voltmeter for measuring atmospheric or other voltages eliminates the dead band without application of high voltages or radioactive isotopes to increase conductivity in the region of the probe. A vacuum tube is operated at substantially reduced conduction in order ... | 01/03/2006 |
| 6974641 | Thermal barrier coating with thermoluminescent indicator material embedded therein A coating material (20) for coating a machine component (10), especially a gas turbine or a part thereof, comprises a mixture of at least a refractory material and an indicator material having an optical emission (e.g. fluorescence) spectrum which vari... | 12/13/2005 |
| 6967485 | Automatic drive adjustment of ultraviolet lamps in photo-ionization detectors A photo-ionization detector having an adjustable drive power for a UV lamp implements a calibration operation that determines measurement signals for a series of drive power levels and based on the resulting measurement signals selects one or more drive power levels... | 11/22/2005 |
| 6940074 | Devices incorporating soft ionization membrane Devices are disclosed that incorporate an ionization device for generating ions and electrons having first and second conductive electrodes that are separated by less than the mean-free-path of molecules being ionized. Electrons generated by the ionization device ma... | 09/06/2005 |
| 6865896 | Storage unit and refrigerator The cool air inside a refrigerator compartment 2 is introduced through a return opening 10 into an ion generation chamber 45 provided behind the refrigerator compartment 2. A voltage is applied to a needle-like electrode 11a | 03/15/2005 |
| 6765198 | Enhancements to ion mobility spectrometers An ion trap mobility spectrometer is provided. The ion trap mobility spectrometer employs algorithms to simultaneously detect and analyze both positive and negative plasmagrams. Selectivity is improved by detecting the presence of peaks in both spectra and setting l... | 07/20/2004 |
| 6646444 | Plug-in photoionization sensor A sensor for detecting volatile organic compounds in ambient air by positioning a detection cell adjacent a gas discharge device to cause molecules of organic compounds to become ionized, and applying an electric field across the collection cell to attrac... | 11/11/2003 |
| 6630664 | Atmospheric pressure photoionizer for mass spectrometry A monitor that can detect a trace molecule that is ionized at approximately one atmosphere. The molecule is ionized with a photoionizer and detected by a detector. The monitor may include a number of techniques to introduce a sample into the photoionizer ... | 10/07/2003 |
| 6627878 | (Chemical agent) point detection system (IPDS) employing dual ion mobility spectrometers A system for sampling the ambient air of a selected environment for the presence of unwanted chemical vapors, such as nerve or blister gases includes an external air sampling unit and a detector unit having first and second ion mobility spectrometers whic... | 09/30/2003 |
| 6610986 | Soft ionization device and applications thereof A soft ionization device is disclosed that comprises a series of electrodes having pacing less than the means free path of the molecules to be ionized. In some embodiments, the soft ionization device is used in various applications that require ion or ele... | 08/26/2003 |
| 6486468 | High resolution, high pressure xenon gamma ray spectroscopy using primary and stimulated light emission A design and readout of a xenon detection medium based device, which provides improved spectroscopic performance compared to currently commercially available devices. To achieve energy resolution improvement, a method to accurately measure radial spatial ... | 11/26/2002 |
| 6456681 | Neutron flux measuring apparatus A neutron flux measuring apparatus, adapted to a boiling-water reactor (BWR) of a nuclear power plant and an advanced boiling-water reactor (ABWR) of a nuclear power plant, for measuring a neutron flux in a reactor pressure vessel, comprises a neutron flu... | 09/24/2002 |
| 6365902 | Radiation detector, an apparatus for use in radiography and a method for detecting ionizing radiation A detector for detection of ionizing radiation, an apparatus for use in planar beam radiography, comprising such a detector, and a method for detecting ionizing radiation. The detector includes a chamber filled with an ionizable medium, at least one first... | 04/02/2002 |
| 6320388 | Multiple channel photo-ionization detector for simultaneous and selective measurement of volatile organic compound A multiple-channel photo-ionization detector (PID) determines the concentrations of specific gases or classes of gases. The PID includes a UV lamp, an optical window which is divided into multiple zones with each zone producing a UV light beam having a di... | 11/20/2001 |
| 6320261 | High aspect ratio metallization structures for shallow junction devices, and methods of forming the same A contact interface having a substantially annular silicide ring along sides of a depression formed in an active surface of the semiconductor substrate, wherein the depression is formed by an etching process to form a contact opening through a dielectric ... | 11/20/2001 |
| 6288400 | Portable apparatus for the measurement of environmental radon and thoron The radometer is a portable instrument for the measurement of the concentration of atmospheric radon/thoron in a test area. A constant velocity pump pulls the air from the outside at a constant flow rate. If the air is too moist, some or all of the sample... | 09/11/2001 |
| 5981952 | Dynamic focusing apparatus for cathode-ray tube device A dynamic focusing apparatus is comprised of a parabaolic voltage generating device for generating a parabolic voltage VpbI across a capacitor 9M by applying a horizontal flyback pulse a series circuit of an inductor 8 and the capacitor, a coupling device... | 11/09/1999 |
| 5925823 | Alpha-particle gas-pressure sensor Gas pressure in a chamber is determined by injecting alpha particles. The alpha particles ionize the gas. By determining a number of gas ions which are ionized, the pressure of the gas in the chamber can be determined.... | 07/20/1999 |
| 5923172 | Penning type gauge head with ignition aid A penning type gauge head with an electrode system comprising an anode and a cathode disposed in the magnetic field of a permanent magnet, including an ignition aid for the electrode system. In order to provide rapid and reliable ignition, the ignition ai... | 07/13/1999 |
| 5920072 | Ionization detector An ionization detector having an upper ionization chamber, a lower ionization chamber, and a radioactive source located in the upper ionization chamber but shielded from the lower ionization chamber by a barrier. A substantially constant fluid stream of d... | 07/06/1999 |
| 5877502 | Radiation monitor for liquids A radiation monitor for use with liquids that utilizes air ions created by alpha radiation emitted by the liquids as its detectable element. A signal plane, held at an electrical potential with respect to ground, collects these air ions. A guard plane or ... | 03/02/1999 |
