| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 250391000 | Methods | 26 |
| 20090101831 | NEUTRON DETECTION - In some embodiments, an electron multiplier includes a neutron-sensitive composition having, in weight percent, approximately 30% to approximately 60% silicon oxide, approximately 20% to approximately 60% lead oxide, and approximately 1% to approximately 15% boron-10 enriched boron oxide. The composition is capable of interacting with neutrons to form an electron cascade. The electron multiplier can be in the form of a microchannel plate, a microfiber plate, or a microsphere plate. | 04-23-2009 |
| 20090108210 | 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. | 04-30-2009 |
| 20090114835 | Absolute Nuclear Material Assay - A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time. | 05-07-2009 |
| 20090294686 | METHOD FOR MONITORING AN UNKNOWN CONTAINER OR THE CONTENTS IN A VOLUME, MONITORING SYSTEM FOR BEING USED WITH SAID METHOD, AND RADIATION DETECTOR FOR SUCH A MONITORING SYSTEM - A method for monitoring a container or the contents in a volume ( | 12-03-2009 |
| 20100123085 | Neutron Detection and Collimation - A device includes a neutron-sensitive composition. The composition includes, in weight percent, a non-zero amount of aluminum oxide (e.g., approximately 1% to approximately 3.5% aluminum oxide), greater than 12% (e.g., approximately 12% to approximately 17%) boron oxide, greater than approximately 60% silicon oxide (e.g., approximately 62% to approximately 68% silicon oxide), and a non-zero amount of sodium oxide (e.g., approximately 10% to approximately 14% sodium oxide). The device is capable of interacting with neutrons to form an electron cascade. | 05-20-2010 |
| 20100301226 | Optimized Detection of Fission Neutrons Using Boron Coated Straw Detectors Distributed in Moderator Material - The present invention includes an apparatus and method for neutron radiation detection. The apparatus comprises combining thin walled, boron-coated straw tubes with a plastic moderator material interspersed around the tubes. The method involves using such an apparatus through application of voltage to a central wire running inside the tubes and collecting electrical pulses generated thereby. | 12-02-2010 |
| 20110068275 | 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 detector array includes a plurality of detectors engaged against each other. The plurality of detectors includes at least one neutron detector and at least one gamma detector. In one specific example, the at least one neutron detector contains B-10. An associated method adjusts information concerning a value of neutron detection. | 03-24-2011 |
| 20110133097 | Neutron Detection - An electron multiplier includes a neutron-sensitive composition having silicon oxide, lead oxide, boron-10 enriched boron oxide, and yttrium oxide. The composition is capable of interacting with neutrons to form an electron cascade. The electron multiplier can be in the form of a microchannel plate, a microfiber plate, or a microsphere plate. | 06-09-2011 |
| 20110226958 | Neutron Detection Based on Induced Charges - Neutrons can be detected using first information derived from a first charge induced on an input electrode of a microchannel plate and second information derived from a second charge induced on an output electrode of the microchannel plate. For example, a ratio between the first charge and the second charge is calculated, a sum of the first and second charges is calculated, and whether a neutron has been detected can be determined based on the ratio and the sum. | 09-22-2011 |
| 20110233420 | Neutron Detection - A neutron detector includes a microchannel plate having a structure that defines a plurality of microchannels, and layers of materials disposed on walls of the microchannels. The layers include a layer of neutron sensitive material, a layer of semiconducting material, and a layer of electron emissive material. For example, the layer of neutron sensitive material can include boron-10, lithium-6, or gadolinium. | 09-29-2011 |
| 20110266452 | METHOD FOR DETERMINING THE SPECTRAL AND SPATIAL DISTRIBUTION OF BRAKING PHOTONS, AND RELATED DEVICE - A method for determining the spectral and spatial distribution of a braking photon flow along at least one direction in space (x, y, z), characterised in that the method comprises measuring the neutrons resulting from the impact of the braking photons (ph) on at least one conversion target which is moved in the direction (x, y, z) in space. The invention can be used for X-rays, medical imaging, tomography, etc. | 11-03-2011 |
| 20120032091 | INCREASE OF NEUTRON FLUX WITH GAMMA SHIELDING - An analyzer having a detector and a neutron source assembly adjacent to the detector is disclosed, wherein the neutron source assembly has a neutron source and a shielding source holder. | 02-09-2012 |
| 20120037811 | REMOTE SUBSTANCE DETECTION - A detection system and methods are described for determining whether a target contains a selected substance or device such as an explosive device, illegal drugs, dangerous chemicals, or the like. According to some embodiments, a detection system is comprising a radiation source and one or more detectors. The detection system in this directs radiation from a distance and towards a target suspected to contain a dangerous device or substance. A response is detected from the target. The response is compared to one or more templates that represent known explosives, drugs, dangerous chemicals, or the like. A score may be generated that corresponds to a similarity between the targeted and known substances. When the score indicates that the target substance is likely to be dangerous or contraband, then an alarm or other indication may be generated in some embodiments. | 02-16-2012 |
| 20120223242 | HIGH EFFICIENCY PROPORTIONAL NEUTRON DETECTOR WITH SOLID LINER INTERNAL STRUCTURES - A tube-style neutron detector, a panel-style neutron detector incorporating a plurality of tube-style neutron detectors, and a panel-style neutron detector including a plurality of anode wires are provided. A plurality of channels is provided in a neutron detector such that each channel has an inner surface of a coating layer including a neutron-absorbing material. A wire anode is provided at end of each channel so that electrons generated by a charged daughter particle generated by a neutron are collected to detect a neutron-matter interaction. Moderator units can be incorporated into a neutron detector to provide improved detection efficiencies and/or to determine neutron energy spectrum. Gas-based proportional response from the neutron detectors can be employed for special nuclear material (SNM) detection. This neutron detector can provide similar performance to | 09-06-2012 |
| 20120223243 | NEUTRON DETECTION BY NEUTRON CAPTURE-INITIATED RELAXATION OF A FERROELECTRICALLY, FERROMAGNETICALLY, AND/OR CHEMICALLY METASTABLE MATERIAL - A system for detecting radiation using an array of cells containing a metastable material together with sensing apparatus and display apparatus. | 09-06-2012 |
| 20120298878 | Delayed Choice Method with Haunted Quantum Entanglement for Choosing at a Distance an Overall Distribution Exhibiting Either Which-Way Information or Interference - Haunted quantum entanglement involves entanglement between two entities where entanglement is based on one particle ( | 11-29-2012 |
| 20130068958 | DETECTOR AND METHOD FOR DETECTING NEUTRONS - A neutron detector includes a bulk of a neutron moderating material, a first housing consisting of or comprising a gamma ray attenuating material, a second housing consisting of or comprising a gamma ray attenuating material, a first sensor device comprising a gadolinium cover disposed in the first housing, and a second sensor device disposed in the second housing. The first sensor device and the second sensor device are each sensitive to gamma rays. The first housing and the second housing are arranged adjacent to each other in the bulk. | 03-21-2013 |
| 20130119261 | NEUTRON DETECTOR AND METHOD FOR DETECTING NEUTRONS | 05-16-2013 |
| 20130221231 | NEUTRON MEASUREMENT APPARATUS AND NEUTRON MEASUREMENT METHOD - A neutron measurement apparatus includes: an analog signal processor; a digitizing processor; an FFT calculation processor; and a signal processor. The analog signal processor amplifies alternating current components of detector output signals output from a neutron detector, and filters to remove high frequency components from the output signals, which the digitizing processor digitizes at a constant sampling period in a time series; the FFT calculation processor converts certain of the signals in a time domain from the digitizing processor into signals in a frequency domain, and filters the signals in the frequency domain; and the signal processor selects and extracts signals having required frequency components through the calculation processing on the FFT calculation processor, to calculate power spectral densities of the extracted signals, and to convert the calculated power spectral densities into a neutron measurement value. | 08-29-2013 |
| 20140097351 | Boron Coated Straw Neutron Detectors Distributed in a Moderator Material - The present invention includes an apparatus and method for neutron radiation detection. The apparatus comprises combining thin walled, boron-coated straw tubes with a plastic moderator material interspersed around the tubes. The method involves using such an apparatus through application of voltage to a central wire running inside the tubes and collecting electrical pulses generated thereby. | 04-10-2014 |
| 20140166891 | HE-3 DETECTOR GUARD BAND - A neutron detector for detecting neutrons includes an exterior shell bounding and sealing an interior volume. The exterior shell serves as a cathode. A central structure extends longitudinally within the exterior shell. The central structure serves as an anode and is maintained at a first voltage. The neutron detector includes an insulating portion extending between the central structure and the exterior shell and longitudinally past a shell end of the exterior shell towards a structure end of the central structure. A guard structure extends circumferentially around an outer insulating surface. The guard structure is positioned on the insulating portion between the shell end and the structure end. The guard structure is maintained at a second voltage such that a leakage current on the outer insulating surface is absorbed by the guard structure. A method of detecting neutrons with the neutron detector is also provided. | 06-19-2014 |
| 20140191135 | NEUTRON BACKSCATTER INSTRUMENT - Disclosed is an instrument for detecting neutron backscatter from an object including a source of neutrons ( | 07-10-2014 |
| 20140264058 | Method for Obtaining Information Signatures from Nuclear Material or About the Presence, the Nature and/or the Shielding of a Nuclear Material and Measurement Setup for Performing Such Method - The invention relates to a method for obtaining information or signatures about the presence or the nature of a nuclear radiation source, especially in a homeland security application, said nuclear radiation source emitting in a time or angle correlated manner at least a first radiation and a second radiation. The method includes the steps of detecting said first radiation with at least one first radiation detector and detecting said second radiation with at least one second radiation detector. The detection of said second radiation is triggered by said detection of said first radiation in a manner that is adapted to the radiation's correlation structure, thereby increasing the signal-to-background ratio for the detection of said second radiation. | 09-18-2014 |
| 20140346365 | RADIATION DETECTION - An instrument for detecting radiation is provided, which comprises an inner core housing a neutron detector, and another core comprising a neutron-moderating material, the instrument further including at least one elongate thermal neutron guide located within the outer core and having an inner end that terminates proximal to the neutron detector. In use, the elongate thermal neutron guide channels thermal neutrons towards the neutron detector. Also provided is a method for using said instrument. | 11-27-2014 |
| 20150115168 | Metal Fluoride Crystal, Light Emitting Element, Scintillator, Method of Detecting Neutron, and Method of Producing Metal Fluoride Crystal - A light emitting element according to one embodiment of the present invention is configured of a metal fluoride crystal which is represented by chemical formula LiM1M2F6 (wherein Li includes 6Li; M1 represents at least one alkaline earth metal element selected from among Mg, Ca, Sr and Ba; and M2 represents at least one metal element selected from among Al, Ga and Sc), said metal fluoride crystal containing 0.02% by mole or more of Eu and having an Eu2+ concentration of less than 0.01% by mole. | 04-30-2015 |
| 20150338532 | HE-3 DETECTOR GUARD BAND - A neutron detector for detecting neutrons includes an exterior shell bounding and sealing an interior volume. The exterior shell serves as a cathode. A central structure extends longitudinally within the exterior shell. The central structure serves as an anode and is maintained at a first voltage. The neutron detector includes an insulating portion extending between the central structure and the exterior shell and longitudinally past a shell end of the exterior shell towards a structure end of the central structure. A guard structure extends circumferentially around an outer insulating surface. The guard structure is positioned on the insulating portion between the shell end and the structure end. The guard structure is maintained at a second voltage such that a leakage current on the outer insulating surface is absorbed by the guard structure. A method of detecting neutrons with the neutron detector is also provided. | 11-26-2015 |
