| Patents for G01V 5 - Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity (5,830) |
|---|
| 05/06/1992 | EP0484244A2 Method and apparatus for borehole correction in capture gamma ray spectroscopy measurements |
| 05/05/1992 | CA1300284C Methods and apparatus for safely handling radioactive sources in measuring-while-drilling tools |
| 04/28/1992 | US5109227 Apparatus for identifying and tracking a targeted nuclear source |
| 04/22/1992 | EP0481865A1 Circular induction accelerator for borehole logging |
| 04/22/1992 | EP0481864A1 Low voltage modulator for circular induction accelerator |
| 04/14/1992 | US5105080 Method and apparatus for determining the respective contributions of borehole and earth formation in gamma ray spectroscopy |
| 04/07/1992 | US5103099 Device for linear detection of radiation |
| 03/25/1992 | EP0476070A1 Multi-sensor explosive detection system. |
| 03/24/1992 | US5098640 Detection using gamma ray detectors producing spectra |
| 03/17/1992 | US5097123 Broad energy spectra neutron source for logging and method |
| 03/10/1992 | US5094808 Oxygen activation downhole tool |
| 03/05/1992 | WO1992003900A1 Explosives detection using resonance fluorescence of bremsstrahlung radiation |
| 03/05/1992 | WO1992003722A1 Detection of explosives and other materials using resonance fluorescence, resonance absorption, and other electromagnetic processes with bremsstrahlung radiation |
| 03/04/1992 | EP0473467A2 Gamma-ray spectroscopy method and apparatus for determining concentration of elements in an unknown material |
| 02/26/1992 | CN1015675B Quantitative determination by elemental logying of subsurface formation properties |
| 02/26/1992 | CN1015674B Well lagging tool with accelerator neutron source |
| 02/25/1992 | US5091924 Apparatus for the transillumination of articles with a fan-shaped radiation beam |
| 02/25/1992 | US5091644 Method for analyzing formation data from a formation evaluation MWD logging tool |
| 02/20/1992 | WO1992002937A1 X-ray backscatter detection system |
| 02/20/1992 | WO1992002892A1 Device and method for inspection of baggage and other objects |
| 02/19/1992 | EP0471601A2 Electrostatic particle accelerator having linear axial and radial fields |
| 02/12/1992 | EP0470226A1 Apparatus and method for detecting contraband using fast neutron activation |
| 02/06/1992 | DE4024144A1 Disabling explosives in passage luggage - identifying timer by spectrum analyser and applying microwave to disable |
| 02/05/1992 | EP0469708A2 Method and apparatus for presenting data from borehole logging |
| 02/04/1992 | US5086224 Analysis of nuclear data for determining characteristics of earth formations traversed by a borehole |
| 01/21/1992 | US5083124 Nuclear logging tool electronics including programmable gain amplifier and peak detection circuits |
| 01/14/1992 | US5081351 Method and apparatus for borehole correction in capture gamma ray spectroscopy measurements |
| 01/14/1992 | US5080856 Luggage inspection |
| 01/08/1992 | EP0465276A2 Method for determining oil and water saturation in earth formation surrounding a borehole |
| 01/07/1992 | US5078952 Multi-sensor explosive detection system |
| 01/07/1992 | CA1294067C Method for determining depth of penetration of radioactive tracersin formation fractures |
| 01/02/1992 | DE4019613A1 X=ray pulse transmission spectrum measuring device |
| 12/31/1991 | US5077530 Low-voltage modulator for circular induction accelerator |
| 12/31/1991 | US5076993 Scanning with collimated beam; detecting gamma ray emission; identifying atomic element source and location thereof; examination of baggage |
| 12/27/1991 | EP0462658A2 Arrangement for the measurement of the pulse transfer spectrum of X-ray quanta |
| 12/21/1991 | CA2045042A1 Resolution enhancement of nuclear measurements through smoothing and deconvolution |
| 12/12/1991 | WO1991019188A1 X-ray generating apparatus and associated method |
| 12/12/1991 | CA2084886A1 X-ray generating apparatus and associated method |
| 12/04/1991 | EP0459844A2 Method and apparatus for epithermal neutron porosity well logging |
| 12/04/1991 | EP0459648A1 Substance detection system |
| 12/03/1991 | US5070249 Photomultiplier tube mounting for well logging detectors |
| 12/01/1991 | CA2042662A1 Substance detection system |
| 11/26/1991 | US5068883 Hand-held contraband detector |
| 11/26/1991 | US5068532 Analysis using neutrons |
| 11/26/1991 | US5068531 Method and apparatus for producing a porosity log of a subsurface formation corrected for detector standoff |
| 11/21/1991 | EP0457628A2 Nuclear activation method and apparatus for detecting and quantifying earth elements |
| 11/19/1991 | US5067090 Nuclear spectroscopy method and apparatus for digital pulse height analysis |
| 11/12/1991 | US5065418 Apparatus for the transillumination of articles with fan-shaped radiation |
| 11/12/1991 | US5065016 Radioactive well logging to determine vertical brine flow |
| 11/06/1991 | EP0455515A2 Apparatus for generation of nuclear resonant reactions |
| 11/05/1991 | US5063509 Method for determining density of samples of materials employing X-ray energy attenuation measurements |
| 11/05/1991 | CA2041868A1 Nuclear resonance absorption measurements of nitrogen and oxygen uniquely to detect explosives and the like, and novel apparatus for generating and detecting resonant gamma rays therefor |
| 10/29/1991 | US5061849 Externally mounted radioactivity detector for MWD employing radial inline scintillator and photomultiplier tube |
| 10/22/1991 | US5060249 Method and apparatus for the detection and imaging of heavy metals |
| 10/13/1991 | CA2040299A1 Method for discriminating microphonic noise in proportional counters |
| 10/08/1991 | US5055676 Method for determining oil and water saturation in earth formation surrounding a borehole |
| 10/08/1991 | US5055675 Pulse height analyzer for spectroscopy thermal multigate decay well logging system |
| 10/08/1991 | CA1290467C Methods and apparatus for safely measuring downhole conditions and formation characteristics while drilling a borehole |
| 10/01/1991 | US5053620 Logging apparatus and method for determining concentrations of subsurface formation elements |
| 09/29/1991 | WO1991014938A1 Hidden explosives detector employing pulsed neutron and x-ray interrogation |
| 09/29/1991 | CA2076022A1 Hidden explosives detector employing pulsed neutron and x-ray interrogation |
| 09/24/1991 | US5051581 Method and apparatus for epithermal neutron porosity well logging |
| 09/17/1991 | CA1289272C Logging apparatus and method |
| 09/11/1991 | EP0269620B1 A well logging tool with an accelerator neutron source |
| 09/10/1991 | CA1288874C Imaging system |
| 09/04/1991 | EP0444984A1 Geochemical logging apparatus and method for determining concentrations of formation elements next to a borehole |
| 09/03/1991 | US5045693 Carbon/oxygen well logging method and apparatus |
| 09/03/1991 | US5045692 Simultaneous fluid flow and fluid density measurements using rotameter and nuclear technology |
| 08/28/1991 | EP0443936A1 Method and apparatus for evaluating the cement in a well |
| 08/27/1991 | US5044002 Baggage inspection and the like |
| 08/21/1991 | EP0442813A2 Method and apparatus for detecting and quantifying radioactive material on tubing in a borehole |
| 08/13/1991 | US5040200 Gamma-gamma resonance in activation analysis, and particularly, its application to detection of nitrogen based explosives in luggage |
| 08/13/1991 | US5040199 Apparatus and method for analysis using x-rays |
| 08/06/1991 | US5038033 Method and apparatus for detecting and quantifying radioactive material on tubing in a borehole |
| 07/25/1991 | WO1991011010A1 Contraband detection system using direct imaging pulsed fast neutrons |
| 07/25/1991 | WO1991011009A1 Apparatus and method for detecting contraband using fast neutron activation |
| 07/24/1991 | CN1013288B Radioactive well measuring device |
| 07/17/1991 | EP0436990A2 A neutron source monitor for an accelerator neutron source |
| 07/12/1991 | CA2033898A1 Directional gamma ray spectrometer |
| 06/19/1991 | EP0433101A2 Linear radiation detector |
| 06/18/1991 | US5025151 Lutetium orthosilicate single crystal scintillator detector |
| 06/18/1991 | US5025150 Site survey method and apparatus |
| 06/11/1991 | US5023450 Method for discriminating microphonic noise in proportional counters |
| 06/11/1991 | US5023449 Nuclear spectroscopy signal stabilization and calibration method and apparatus |
| 06/04/1991 | US5022062 Automatic threat detection based on illumination by penetrating radiant energy using histogram processing |
| 06/04/1991 | US5021653 Geochemical logging apparatus and method for determining concentrations of formation elements next to a borehole |
| 06/04/1991 | US5021652 Directional gamma ray spectrometer |
| 05/28/1991 | US5019708 Method for eliminating the effect of rugosity from compensated formation logs by geometrical response matching |
| 05/08/1991 | EP0425662A1 Nuclear resonances in activation analysis, and particularly, its application to detection of nitrogen based explosives in luggage. |
| 04/30/1991 | US5012091 Production logging tool for measuring fluid densities |
| 04/24/1991 | EP0424308A2 Geophysical survey system |
| 04/24/1991 | EP0424265A1 Apparatus for measuring radioactive contamination of large objects |
| 04/21/1991 | CA2027884A1 Device for measuring radioactive contamination on large pieces |
| 04/18/1991 | WO1991005272A1 System for detecting substances and particularly explosives, by neutronic irradiation from the latter |
| 04/16/1991 | US5008539 Process and apparatus for detecting presence of plant substances |
| 04/16/1991 | US5008067 Using oxygen containing scintillator to convert generated light from pulsed neutron source to electrical signal; recording energy flux |
| 04/09/1991 | US5007072 X-ray diffraction inspection system |
| 04/09/1991 | US5006299 Explosive detection system |
| 04/09/1991 | US5005422 Method and apparatus for measuring subsidence |
| 04/03/1991 | EP0419514A1 Method of analyzing exponential data. |