Class / Patent application number | Description | Number of patent applications / Date published |
250390110 | Including a scintillator | 30 |
20080210880 | Two-Dimensional Detection System for Neutron Radiation in the Field of Neutron Scattering Spectrometry - A two-dimensional detection system for neutron radiation is disclosed. The detection system includes a means ( | 09-04-2008 |
20090014662 | Directional Neutron Detector - A directional neutron detector consisting of very thin plastic scintillation fibers and optically coupled to a photo-sensor array, where the directionality of Neutrons is estimated from the sequence of fibers traversed by the scattered protons and energy deposited in each one of them . Several fabrication methods of the large thin fiber arrays are described. | 01-15-2009 |
20090045348 | Intrinsically Directional Fast Neutron Detector - A directional fast neutron detector having superposed layers of a hydrogenous non-scintillating material for generating recoil protons, a non-hydrogenous scintillating material for generating scintillations, and a non-hydrogenous non-scintillating barrier material, in which the layers are placed in a specific order at regular intervals and the composition and thickness of the layers can be varied in order to alter the efficiency and sensitivity of the system. The detector exhibits both intrinsic and geometric directionality. The intrinsic directionality will depend primarily on the materials selected and the thicknesses of the individual layers, while the geometric directionality will depend primarily on the size and shape of detector. The detector of the invention provides a compact, relatively easy to use, directional neutron detector for use in locating and monitoring special nuclear materials and other sources of fast neutrons. | 02-19-2009 |
20090078881 | TIME-RESOLVED, OPTICAL-READOUT DETECTOR FOR NEUTRON AND GAMMA-RAY IMAGING - An efficient, large-area-detector and readout-system for combined sub-mm spatial imaging and time-of-flight spectrometry of fast and slow neutrons, as well as gamma-rays, capable of loss-free operation in mixed neutron-gamma fields of very high intensity. | 03-26-2009 |
20090140158 | MOLDABLE NEUTRON SENSITIVE COMPOSITIONS, ARTICLES, AND METHODS - Moldable neutron sensitive compositions containing an inorganic scintillating component, and neutron capture component, and a moldable resin component, are described. They are prepared with optimized compositions for maximized thermal neutron sensitivity. Methods for preparing such compositions, and articles and radiation detectors made from them are described as well. | 06-04-2009 |
20090242784 | BRIGHT AND FAST NEUTRON SCINTILLATORS - A scintillating material Cs | 10-01-2009 |
20090272910 | METHOD OF DETECTION OF FAST NEUTRONS - A simple method is developed for detection of fast neutrons for systems of detection of radioactive materials, which does not involve moderator systems, operates on the real time scale and ensures high detection efficiency. The method includes conversion of the cascade of gamma-quanta formed as a result of inelastic scattering of neutrons in a converter material with high atomic number into a set of light scintillations by a scintillator, processing of signals obtained in recording of said scintillations, formation of counting pulses with frequency proportional to the neutron flux and their recording according to an appropriate algorithm. Inorganic scintillators with high effective atomic number are used, and, as converter materials for inelastic scattering of neutrons, materials with high atomic numbers are used, which are a constituent part of said inorganic scintillators. Processing of the obtained signals is carried out by their integration with time constant of at least 30 microseconds, and formation of counting pulses is made by selection of the integrated signals in the energy range equivalent to 10-300 keV. Examples of inorganic scintillators comprising material with high effective atomic number used as the converter are crystals BGO, GSO, ZnWO, CWO, Cs(Tl), Na(Tl), and Li(Eu). | 11-05-2009 |
20100314550 | SCINTILLATOR FOR NEUTRON DETECTION AND NEUTRON DETECTOR - To provide a scintillator for neutron detection which has high sensitivity to neutron rays, and is reduced in a background noise attributed to γ rays. | 12-16-2010 |
20110089332 | NEUTRON DETECTION SYSTEM - A neutron detection system comprising a radiation portal monitor is disclosed. The radiation portal monitor includes a neutron moderator sheet and a neutron-sensing panel and is configured to receive incoming neutrons through a neutron collection portal area. The neutron-sensing panel comprises a neutron-sensing material optically coupled to a plurality of optical fibers such that the neutron moderator sheet and the neutron-sensing panel are disposed substantially parallel to the neutron collection portal area. | 04-21-2011 |
20120025090 | POROUS MATERIAL NEUTRON DETECTOR - A neutron detector employs a porous material layer including pores between nanoparticles. The composition of the nanoparticles is selected to cause emission of electrons upon detection of a neutron. The nanoparticles have a maximum dimension that is in the range from 0.1 micron to 1 millimeter, and can be sintered with pores thereamongst. A passing radiation generates electrons at one or more nanoparticles, some of which are scattered into a pore and directed toward a direction opposite to the applied electrical field. These electrons travel through the pore and collide with additional nanoparticles, which generate more electrons. The electrons are amplified in a cascade reaction that occurs along the pores behind the initial detection point. An electron amplification device may be placed behind the porous material layer to further amplify the electrons exiting the porous material layer. | 02-02-2012 |
20120061580 | NEUTRON DETECTOR HAVING ENHANCED ABSORPTION AND BIFURCATED DETECTION ELEMENTS - A neutron detection system includes a neutron scintillator having a thickness greater than an optimal thickness and less than twice the optimal thickness. The system includes a first layer of wavelength shifting fiber optic elements positioned on a first side of the neutron scintillator. Adjacent fibers of the first layer pass light to distinct photo-multiplication devices. The system further includes a second layer of wavelength shifting fiber optic elements positioned on a second side of the neutron scintillator. Adjacent fibers of the second layer pass light to distinct photo-multiplication devices. The two layers may share photo-multiplication devices or use different sets of photo-multiplication devices. The system includes a controller that distinguishes a neutron radiation event from a gamma radiation event in response to electronic signals from the distinct photo-multiplication devices. | 03-15-2012 |
20120132823 | RADIATION DETECTION SYSTEM AND METHOD OF ANALYZING AN ELECTRICAL PULSE OUTPUT BY A RADIATION DETECTOR - A radiation detection system can include a photo sensor to receive light from a scintillator via an input and to send an electrical pulse at an output in response to receiving the light. The radiation detection system can also include a pulse analyzer that can determine whether the electrical pulse corresponds to a neutron-induced pulse, based on a ratio of an integral of a particular portion of the electrical pulse to an integral of a combination of a decay portion and a rise portion of the electrical pulse. Each of the integrals can be integrated over time. In a particular embodiment, the pulse analyzer can be configured to compare the ratio with a predetermined value and to identify the electrical pulse as a neutron-induced pulse when the ratio is at least the predetermined value. | 05-31-2012 |
20120145913 | Neutron Detection Based On Energy Spectrum Characteristics - A neutron detector includes a coincidence detector to detect coincidence events in which each coincidence event indicates proximity in time of a first signal and a second signal. The first signal indicates detection of at least one of a neutron or a gamma ray, and the second signal indicates detection of a gamma ray by a gamma ray detector. A data processor identifies detection of neutron radiation based on characteristics of an energy spectrum of the gamma rays associated with the second signals that correspond to the coincidence signals. | 06-14-2012 |
20120241637 | Scintillators And Subterranean Detectors - The present disclosure provides a protective scintillator package for enclosing a scintillator wherein at least one component in the package is at least partially formed from a viscoelastic material. The protective package may comprise both elastic and viscoelastic materials, which may both be included in one component or may be in differing components. The present disclosure further provides radiation detectors using such scintillator packages, as well as logging tools, and methods for oil exploration. | 09-27-2012 |
20120286166 | Thermal neutron detectors based on gadolinium-containing nanoscintillators - A thermal neutron detector and method employ Gd-containing nanoscintillators. Thermal neutron radiation is detected by observing scintillation events from the nanoscintillators. | 11-15-2012 |
20130015363 | DETECTOR, METHOD FOR MANUFACTURING A DETECTOR AND IMAGING APPARATUS - A detector ( | 01-17-2013 |
20130043402 | NEUTRON SCINTILLATOR AND NEUTRON DETECTOR - [Problems to be Solved] A neutron scintillator excellent in neutron detection efficiency and n/γ discrimination ability, and a neutron detector using the neutron scintillator are provided. | 02-21-2013 |
20130168566 | METHODS AND APPARATUS FOR INTEGRATED NEUTRON/GAMMA DETECTOR - Methods and apparatus for a detector system to detect gamma and neutron radiation. In one embodiment, a detector comprises a tank to hold a liquid, a plurality of tubes adjacent the tank to detect neutrons, and a plurality of photon detectors to detect Cherenkov light generated by gamma radiation in the liquid. The tank is configured to contain the liquid so that the liquid generates the Cherenkov light and moderates the neutrons. | 07-04-2013 |
20130206996 | NEUTRON DETECTOR - Provided is a scintillation neutron detector capable of measuring neutrons with precision even under a high amount of γ rays as background noise and excellent in neutron counting precision, the scintillation neutron detector comprising a neutron scintillator crystal containing | 08-15-2013 |
20130334435 | LUBRICANT DISTRIBUTION ACQUISITION DEVICE AND LUBRICANT DISTRIBUTION ACQUISITION METHOD - In this lubricant distribution acquisition device ( | 12-19-2013 |
20130341524 | LUBRICANT DISTRIBUTION ACQUISITION DEVICE AND LUBRICANT DISTRIBUTION ACQUISITION METHOD - The direction of the main axis of a bearing is adjusted by turning a supporting base ( | 12-26-2013 |
20140124677 | MIXED CRYSTAL ORGANIC SCINTILLATORS - A mixed organic crystal according to one embodiment includes a single mixed crystal having two compounds with different bandgap energies, the organic crystal having a physical property of exhibiting a signal response signature for neutrons from a radioactive source, wherein the signal response signature does not include a significantly-delayed luminescence characteristic of neutrons interacting with the organic crystal relative to a luminescence characteristic of gamma rays interacting with the organic crystal. According to one embodiment, an organic crystal includes bibenzyl and stilbene or a stilbene derivative, the organic crystal having a physical property of exhibiting a signal response signature for neutrons from a radioactive source. | 05-08-2014 |
20140264057 | NEUTRON DETECTOR USING GD-BASED SCINTILLATOR AND WIDE-BANDGAP SEMICONDUCTOR PHOTOVOLTAIC - An enhanced neutron sensing device, that couples a gadolinium based scintillator with at least two wide bandgap photodiodes to achieve a high sensitivity, low power, and portable neutron detector with high gamma discrimination. Once coupled with electrical signal processing and read-out electrons, the device will output the incident neutron flux in the environment and can be used in locations with known sources of neutrons or for identifying clandestine nuclear materials. | 09-18-2014 |
20140361186 | Method for Detecting and Identifying Nuclear Material in a Container and Radiation Monitoring Arrangement for Conducting the Method - The invention relates to an improved method for detecting and possibly identifying and/or characterizing nuclear and/or radiological material in a container, vehicle, or on a person, comprising the steps of: a. providing at least one detector, which is capable of detecting radiation events being interrelated to nuclear or radiological material; b. bringing the at least one detector in the vicinity of the container, vehicle or person to be monitored; c. detecting radiation events being interrelated to the container, vehicle or person to be monitored; d. assigning each detected radiation event an individual time stamp in order to generate a time pattern of the detected radiation events; and e. analyzing the time pattern with respect to time correlation structures in order to identify a presence and/or characteristics of the nuclear or radiological material. | 12-11-2014 |
20140361187 | DETECTOR AND METHOD FOR SIMULTANEOUSLY DETECTING GAMMA RAY AND NEUTRON RAY USING SAME - The present invention discloses a detector. The detector includes a detector crystal, configured to detect incident rays therein; a plurality of moderator layers, configured to moderate neutrons entering the moderator layer; and a plurality of converter layers, configured to react with said moderated neutrons. The moderator layers and the converter layers are overlapped with each other, and the moderator layers and the converter layers are located outside the detector crystal. | 12-11-2014 |
20150076360 | SCINTILLATOR AND RADIATION DETECTOR INCLUDING THE SCINTILLATOR - A radiation detector can include a solid organic/plastic scintillator that enables neutron and gamma interactions to be readily distinguished via pulse-shape discrimination. Embodiments make use of a scintillator including a polymer matrix with a dispersed scintillation material exhibiting thermally activated delayed fluorescence. The scintillation material can include an organic luminescent material that is free of heavy metals and in which excited triplet states are efficiently promoted into excited singlet states by thermal energy, the excited singlet states then generating a delayed fluorescence when decaying to ground state. As a result, the scintillation material, when exposed to ionizing radiation, can produce a combination of prompt and delayed fluorescence sufficient to enable neutron and gamma interactions to be readily distinguished via pulse-shape discrimination techniques. | 03-19-2015 |
20150307777 | NEUTRON SCINTILLATOR, NEUTRON DETECTION METHOD AND NEUTRON DETECTOR - A neutron scintillator composed of a resin composition comprising (A) an inorganic phosphor containing at least one neutron capture isotope selected from lithium 6 and boron 10 and (B) a resin, wherein
| 10-29-2015 |
20160139280 | Neutron Detector With Interblended Liquid Scintillator - A neutron detector that utilizes cells in which a liquid scintillator is contained in elongated detector tubes, with photo-detectors disposed at each end of the tube to measure scintillation light generated by incident neutrons. The liquid scintillator is an interblended mixture including an ionic liquid blended with a scintillation enhancer and/or a moderator and/or a controlled optical attenuator. A longitudinal position of an incident neutron is determined by the magnitudes of the scintillation light portions arriving at each photo-detector, which are proportional to the distances between the neutron interaction point and the photo-detectors. The cells are arranged in a closely-spaced parallel planar array to facilitate determining incident neutron location in two dimensions. A detector system utilizes a first detector array to detect fast neutrons, a thermalizer (e.g., polyethylene) to convert fast incident neutrons to thermal neutrons, and a second detector array to detect the thermal neutrons. | 05-19-2016 |
20160194558 | Gadolinium-Loaded Gel Scintillators For Neutron and Antineutrino Detection | 07-07-2016 |
20180024256 | Neutron Conversion Foil, Neutron Detecting Device with Such a Foil, and Method for Operating Such a Neutron-Detecting Device | 01-25-2018 |