Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 8183537 | Neutron detection system A neutron detector system including a neutron sensitive reaction layer may be configured to react with incident neutrons to form energetic particles. An energetic particle capturing layer may be configured to capture energetic particles emitted from the neutron sens... | 05/22/2012 |
| 7964852 | Neutron sensitivity using detector arrays A detector array includes a plurality of neutron detectors. Each neutron detector includes an anode and a cathode including at least some B-10 boron. The array includes at least one gamma detector engaged against at least one neutron detector within the array. A det... | 06/21/2011 |
| 7763861 | Determining a characteristic of atomic particles affecting a programmable logic device Methods and systems are provided for determining a characteristic of an atomic particle affecting a programmable logic device (PLD). The PLD is configured to generate a value at one or more outputs. A source generates a packet of atomic particles. The departure from... | 07/27/2010 |
| 7728306 | Neutron logging tool having source and target with deuterium-tritium gas admixture An accelerator-based neutron tool is provided. The tool includes a deuterium-tritium gas mixture such that the tool outputs a desired ratio of 2.45 MeV and 14 MeV neutrons. ... | 06/01/2010 |
| 7333211 | Method for determining a qualitative characteristic of an interferometric component The present invention relates to a method for determining a qualitative characteristic of an interferometric component (eg a planar waveguide structure) or a process for determining a qualitative characteristic of a stimulus of interest to which the interferometric ... | 02/19/2008 |
| 7268353 | Measuring the moisture content of plutonium oxide canisters A process for measuring the moisture content in a quantity of PuO2 powder. The process detects the content of thermal neutrons emitted by the quantity of PuO2 powder and then deduces its moisture content from a value of the detected content ass... | 09/11/2007 |
| 7151815 | Nonintrusive method for the detection of concealed special nuclear material A method and associated apparatus for detecting concealed fissile, fissionable or special nuclear material in an article, such as a shipping container, is provided. The article is irradiated with a source of fast neutrons, and fast neutrons released by the fissile o... | 12/19/2006 |
| 7133488 | Neutron flux mapping system for nuclear reactor A neutron flux mapping system for a nuclear reactor including: drivers each including a geared motor, a helical gear driven by the geared motor, and a storage reel adapted to supply, to the helical gear, a detector cable carrying a detector; and a double indexing pa... | 11/07/2006 |
| 7109496 | Storage layer, conversion layer and a device for reading x-ray information, in addition to an x-ray cassette The invention relates to a storage layer (4) for storing x-ray information, comprising a large number of needle-shaped storage material areas (15A to 15L) for guiding light radiation (17 to 28, 30 to 35). An absorption zone ... | 09/19/2006 |
| 7026627 | Neutron/gamma ray survey instrument with directional gamma ray sensitivity A portable survey instrument and methodology yield intensity of neutron radiation, intensity of gamma radiation, and a direction of impinging gamma radiation. The instrument uses a neutron detector surrounded by an essentially rectangular moderator with preferably f... | 04/11/2006 |
| 6953937 | Method and apparatus for the detection of neutrons and gamma rays A pulse discrimination method for discriminating between pulses having a short decay period and a long decay period, may comprise: Detecting the pulse; integrating a rise portion of the pulse; integrating a decay portion of the pulse; and comparing the integrated ri... | 10/11/2005 |
| 6703606 | Neutron burst timing method and system for multiple measurement pulsed neutron formation evaluation A method is disclosed for measuring neutron interaction properties of an earth formation. The method includes irradiating the formation with bursts of high energy neutrons. The bursts have a duration selected to enable detection of short duration burst re... | 03/09/2004 |
| 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 |
| 5818054 | Substance detection device using monoenergetic neutrons A method and apparatus for non-invasively determining the internal composition of objects are disclosed. The object of interest is probed with low energy, monoenergetic narrow beams of fast neutrons. The object is generally placed on a conveyor belt which... | 10/06/1998 |
| 5648268 | Radionuclide exchange detection of ultra trace ionic impurities in water The present invention is directed to an analytic method for detecting trace elements in fluid solution. A cation exchange resin is packed with a radiolabelled exchange material having certain characteristics and replaces the trace element ions in the flui... | 07/15/1997 |
| 5557108 | Integrated substance detection and identification system An apparatus and method for non-destructively detecting and identifying narcotics, explosives, and other forms of contraband concealed within a container or otherwise hidden from view. A radioactive source is used in conjunction with both neutron and gamm... | 09/17/1996 |
| 5543623 | Method for detecting and mitigating underground organic contamination This technique for detecting underground contamination by organic fluids employs a plurality of spaced-apart boreholes adjacent a region to be tested for contamination. A neutron backscatter gauge is introduced into each of the boreholes for measuring the... | 08/06/1996 |
| 5532492 | Nuclear gauge with compensation for sample irregularities A neutron gauge is described for determining the moisture content of a moisture containing material. Samples of the moisture containing material are confined in a sample pan and a sample cover with sufficient neutron moderating activity is pressed against... | 07/02/1996 |
| 5440136 | Anisotropic neutron scatter method and apparatus A non-invasive inspection system employs the isotropic, resonant scattering of neutrons from an object to determine the presence of at least one preselected element therein. A monoenergetic neutron beam is impinged onto the object and a first detector is ... | 08/08/1995 |
| 5300781 | Non-hydrogenous process level measurement A process measurement system that utilizes fast neutron backscattering for measuring density, level, and interfaces of substantially non-hydrogenous materials. The present invention substantially expands the use of backscattering technology, by expanding ... | 04/05/1994 |
| 5296712 | Detector time-gating for neutron radiographic imaging A source of neutrons is pulsed. A resultant flow of pulsed neutrons is detected and initiates a time delay. During the time delay, more quickly moving sources of radiation, such as fast and epithermal neutrons as well as gamma rays pass by an imaging devi... | 03/22/1994 |
| 5229066 | Control rod position indication system The present invention is a system which determines nuclear reactor control rod axial position using a deviation signature database generated from a current or reference signal pattern produced by one or more strings of axially dispersed fixed incore detec... | 07/20/1993 |
| 5204527 | Neutron particle energy detector An apparatus and method utilize a neutron sensitive medium in which initially existing atoms of the medium are divided into particles, reaction energy and neutron energy. The medium undergoes polarization in response to the reaction energy and the neutron... | 04/20/1993 |
| 5142153 | Energy discriminating, resonant, neutron detector A neutron detector includes a constituent or added sensitizer which enhances the detector's response to neutrons, of a preselected energy. Also disclosed are analytical techniques employing the detector, including a double resonance technique.... | 08/25/1992 |
| 5057268 | Method and composition of matter for detecting large quantities of paper currency Paper notes used as a monetary currency are deuterated. The level of deuteration while not complete, is high. For U.S. currency the level of deuteration is at least 0.1 mg of deuterium for each one dollar in value of the currency note, and preferably at l... | 10/15/1991 |
| 4938916 | Flux enhancement for neutron radiography inspection device A neutron radiography system having a high energy neutron generator (100) of the type comprising an ion accelerator (106) and a tritium target (110) located downstream of the accelerator. The generator is disclosed in a housing (22) containing a moderator... | 07/03/1990 |
| 4933556 | Temperature measuring using neutron transmission The temperature of an object (10) is measured by monitoring the thermal Doppler broadening of resonances in its neutron transmission characteristics, as neutrons (11) pass through it from a source (12) to a detector (14). Various surfaces (18, 20, 24) of ... | 06/12/1990 |
| 4918315 | Neutron scatter method and apparatus for the noninvasive interrogation of objects A system and method for the inspection and/or search for concealed objects impinges a monoenergetic neutron beam upon an object, notes the energy distribution of the neutrons scattered from the object and correlates the energy/intensity distribution of th... | 04/17/1990 |
| 4870278 | Wide-range fluid level detector The range of a neutron backscatter fluid level detector is extended to provide essentially continuous level indication by interpolating neutron backscatter counts of neutrons supplied from a plurality of sources at various heights.... | 09/26/1989 |
| 4837442 | Neutron range spectrometer A neutron range spectrometer and method for determining the neutron energy spectrum of a neutron emitting source are disclosed. Neutrons from the source are collimnated along a collimation axis and a position sensitive neutron counter is disposed in the p... | 06/06/1989 |
| 4766319 | Portable nuclear moisture-density gauge with low activity nuclear sources The nuclear moisture-density gauge of the present invention employs a low activity neutron radiation source and a low activity gamma radiation source. In order to achieve more accurate density measurements at the relatively low count rates which results f... | 08/23/1988 |
| 4754136 | Method of detecting underground tank leak A non-destructive and non-invasive method of detecting underground tank leaks using three phase testing. A plurality of boreholes are drilled around the tank with the boreholes preferably extending below the tank. In the first phase of testing gas vapor a... | 06/28/1988 |
| 4749866 | Method for detecting and correcting for isotope burn-in during long-term neutron dosimetry exposure A method is described for detecting and correcting for isotope burn-in during-long term neutron dosimetry exposure. In one embodiment, duplicate pairs of solid state track recorder fissionable deposits are used, including a first, fissionable deposit of l... | 06/07/1988 |
| 4645935 | Method and apparatus for measuring thermal neutron absorption cross-section The thermal neutron absorption cross-section of a sample is measured by placing the sample in a sample container which surrounds a cavity within which a neutron source is positioned. A detector is positioned along a line parallel to an axis passing throug... | 02/24/1987 |
| 4620800 | High level gamma radiation dosimeter A direct dosimeter for measuring gamma radiation flux having dose rates in excess of 0.1 megarad/hr. The dosimeter includes a gamma heating material such as aluminum or lead positioned in an evacuated housing. A thermocouple measures the temperature of th... | 11/04/1986 |
| 4617466 | Direct fissile assay of enriched uranium using random self-interrogation and neutron coincidence response Apparatus and method for the direct, nondestructive evaluation of the 235 U nuclide content of samples containing UF6, UF4, or UO2 utilizing the passive neutron self-interrogation of the sample resulting from th... | 10/14/1986 |
| 4582991 | Method of measuring the density of a material A method of measuring the density of a first material containing a moderator of fast neutrons comprising the steps of: emitting fast neutrons into a sample having a predetermined volume confined in a predetermined shape and sensing the rate of slow neutro... | 04/15/1986 |
| 4575634 | Assaying composite structures Measurement of the amount of a constituent such as glass in a composite structure, by passing neutrons or gamma rays through the structure and measuring the degree to which the neutrons or gamma rays are absorbed.... | 03/11/1986 |
| 4498007 | Method and apparatus for neutron radiation monitoring A self-calibrated neutron radiation monitor includes a flux responsive element comprised of intrinsic silicon neutron detectors and self-calibration resistors in a single structure. As the resistance of the flux responsive element increases to the value o... | 02/05/1985 |
| 4497769 | Portable instrument for inspecting irradiated nuclear fuel assemblies A portable instrument for measuring induced Cerenkov radiation associated with irradiated nuclear fuel assemblies in a water-filled storage pond is disclosed. The instrument includes a photomultiplier tube and an image intensifier which are operable in pa... | 02/05/1985 |
