Class / Patent application number | Description | Number of patent applications / Date published |
250370050 | Neutron detection system | 42 |
20080296506 | Detector Having A Thin Film Of Boron Nitride (BN) Such As Cubic BN And Method, Systems And Array Utilizing Same - A detector having a thin film of boron nitride (BN) such as cubic BN, and method, system and array utilizing same are provided. Solid-state p-i-n, deep depletion p-n and Schottky diode detector devices based on a thin film of semiconducting cubic BN are provided. Miniaturized solid-state detectors based on cubic boron nitride have a broad range of applications, both civilian and military. | 12-04-2008 |
20090272906 | Method and apparatus for the identification of lithospheric or shielded material deposits by doppler-shifted response photon spectra from interrogation by ionizing radiation - A method and apparatus for the remote, non-invasive detection or characterization of materials manifests a controlled temperature perturbation to the sample material location concurrently with sample interrogation by ionizing radiation and with detection of the response emission energy spectra. This configuration induces and detects Doppler effects manifested at the sample location, allowing material inventory and composition measurements, and allowing a comparative reduction of the exposure duration compared to other isothermal proportional count, coincidence count or spectral analysis techniques. The method and apparatus apply primarily to the detection of elements and isotopes in baggage handling, cargo inspection, chemical characterization, process control and geologic operations, though the method and apparatus are not restricted to these applications. Though the magnitudes of the measured effects are substance specific, the contributing physical processes are not strictly material dependent, allowing method and apparatus applications to almost any high-energy photon-emitting material in multiple applications. | 11-05-2009 |
20090294678 | RADIATION DIRECTIONAL FINDER AND ISOTOPE IDENTIFICATION SYSTEM - A system and method determine a direction associated with gamma and/or neutron radiation emissions. A first radiation photon count associated with a first detector in a detector set is received from the first detector. The first radiation photon count is associated with at least one radiation source. A second radiation photon count associated with a second detector in the detector set is received from the second detector. The first radiation photon count is compared to the second radiation photon count. One of the first detector and the second detector is identified to have detected a larger number of radiation photons than the other. The at least one radiation source is determined to be substantially in a direction in which the one of the first detector and the second detector that has detected the larger number of radiation photons is facing. | 12-03-2009 |
20090302227 | Neutron Detection Structure - A neutron detection structure built from a Silicon-On-Insulator memory cell includes a conversion layer for converting incident neutrons into emitted charged particles, a device layer for receiving the emitted charged particles, a buried oxide layer separating the conversion layer from the device layer and directly adjacent to the conversion layer and the device layer, an isolation layer, a passivation layer formed on the isolation layer opposite the device layer and buried oxide layer, a carrier adhered by an adhesion layer to the passivation layer opposite the isolation layer, and a plurality of conductive contacts to provide electrical contact to the device layer. A corresponding method for fabricating such a structure includes permanently bonding a carrier to a passivated SOI SRAM wafer, removing an insulative substrate, depositing a conversion layer where at least a portion of the insulative substrate was removed, and forming at least one opening in the conversion layer and the buried oxide layer to provide at least one electrical contact to the device layer. | 12-10-2009 |
20100078570 | RADIATION DETECTION SYSTEM USING SOLID-STATE DETECTOR DEVICES - A neutron detection device ( | 04-01-2010 |
20100155611 | RADIATION-DETECTING STRUCTURES - A mobile device including a housing, a wireless signal transceiver contained within the housing, and a radiation-detecting structure comprising a charge storage structure contained within the housing to detect radiation. | 06-24-2010 |
20100213380 | Neutron Detector with Gamma Ray Isolation - A silicon-on-insulator (SOI) neutron detector comprising a silicon-on-insulator structure, wherein the silicon-on-insulator structure consists of an active semiconductor layer, a buried layer, and a handle substrate, a lateral carrier transport and collection detector structure within the active semiconductor layer of the silicon-on-insulator structure, and a neutron to high energy particle converter layer on the active semiconductor layer. | 08-26-2010 |
20100258732 | Neutron dosimetry for radiotherapy - A system includes emission of a first treatment beam associated with a first energy toward a neutron dose detector, determination of a first number of soft errors experienced by a semiconductor-based device exposed to neutrons generated by the first treatment beam, determination of a first neutron dose based on the first treatment beam using the neutron dose detector, and association of the first energy of the first treatment beam with the first number of soft errors and the first neutron dose. Some aspects include emission of a second treatment beam associated with the first energy toward a target, determination of a second number of soft errors experienced by the semiconductor-based device exposed to neutrons generated by the second treatment beam, and determination of a second neutron dose at the target based on the association between the first energy, the first number of soft errors and the first neutron dose. | 10-14-2010 |
20100301222 | RADIATION DETECTION - An instrument for detecting radiation is provided, which comprises an inner core housing a neutron detector, and an outer 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. | 12-02-2010 |
20100327170 | SPECTROSCOPIC FAST NEUTRON DETECTION AND DISCRIMINATING USING LI-BASED SEMICONDUCTORS - A neutron sensing material detector includes an anode; a cathode; and a semiconductor material disposed between the anode and the cathode. An electric field is applied between the anode and cathode. The semiconductor material is composed of a ternary composition of stoichiometry LiM | 12-30-2010 |
20100327171 | SOLID-STATE NUCLEAR DETECTOR - The present invention provides an innovative solid-state neutron detector that exhibits superior neutron-sensitivities. One embodiment of the present invention includes a Gadolinium-oxide (Gd | 12-30-2010 |
20110095193 | ULTRA THIN NEUTRON DETECTOR, METHOD FOR MANUFACTURING THE NEUTRON DETECTOR AND NEUTRON IMAGING APPARATUS - A detector ( | 04-28-2011 |
20110095194 | NEUTRON DETECTOR WITH NEUTRON CONVERTER, METHOD FOR MANUFACTURING THE NEUTRON DETECTOR AND NEUTRON IMAGING APPARATUS - A detector for detecting neutrons includes a neutron reactive material interacting with neutrons to be detected and releasing ionizing radiation reaction products in relation to the interactions. It also includes a first semiconductor element being coupled with the neutron reactive material and adapted to interact with the ionizing radiation reaction products and provide electrical charges proportional to the energy of the ionizing radiation reaction products. In addition electrodes are arranged in connection with the first semiconductor element for providing charge collecting areas for collecting the electrical charges and to provide electrically readable signal proportional to the collected electrical charges. In the detector the neutron reactive material is arranged so that the incident neutrons to be detected interact with the neutron reactive material essentially in the portion nearest to the charge collecting areas provided by the electrodes in the first semiconductor element to which the neutron reactive material is coupled with. | 04-28-2011 |
20110101230 | Advanced SNM Detector - A detector for detecting SNM and or RDD radiation. The detector comprising: a plurality of elongated organic scintillator segments arranged in a side by side array; and at least one pair of light sensors optically coupled to ends of each of the scintillator segments such that they receive light from scintillations produced in the scintillator and generate electrical signals responsive thereto. | 05-05-2011 |
20110284755 | HIGH SENSITIVITY, SOLID STATE NEUTRON DETECTOR - An apparatus ( | 11-24-2011 |
20120043469 | RADIATION DETECTING DEVICE TO MEASURE GAMMA-RAY AND NEUTRON DISCRIMINATELY - A radiation detecting device is provided, according to which it is possible use only one radiation detecting device to measure radiation and measure gamma ray and neutron at once and discriminately in a restricted space. The radiation detecting device includes a radiation detecting unit to measure gamma ray and neutron discriminately at once, and a signal processing circuit which applies voltage to the neutron detecting unit and indicates measured gamma ray and neutron discriminately. | 02-23-2012 |
20120132819 | Neutron Porosity Logging Tool Using Microstructured Neutron Detectors - A neutron porosity measurement device uses semiconductor detectors located at different distances from a cavity configured to accommodate a neutron source. Each of the semiconductor detectors includes (i) a semiconductor substrate doped to form a pn junction, and having microstructures of neutron reactive material formed to extend from a first surface inside the semiconductor substrate, and (ii) electrodes, one of which is in contact with the first surface of the semiconductor substrate and another one of which is in contact with a second surface of the semiconductor substrate, the second surface being opposite to the first surface. The electrodes are configured to acquire an electrical signal occurring when a neutron is captured inside the semiconductor substrate. | 05-31-2012 |
20120280133 | NEUTRON DETECTOR HAVING PLURALITY OF SENSING ELEMENTS - A neutron detector and method are provided. The detector includes a neutron conversion material that emits charged particles in response to a reaction with neutrons, a plurality of semiconductor sense elements that are sensitive to the charged particles, and a latch coupled to an output of semiconductor sense elements. | 11-08-2012 |
20130032725 | IMAGING DEVICE - An imaging device suitable for detecting certain imaging particles and recording the detection of imaging particles, and as such can include certain recording devices such as a charge storage structure. | 02-07-2013 |
20130056641 | SOLID-STATE NEUTRON DETECTOR WITH GADOLINIUM CONVERTER - Thermal Neutron Detector. The detector includes at least one semiconductor transistor within a circuit for monitoring current flowing through the semiconductor transistor. A film of gadolinium-containing material covers the semiconductor transistor whereby thermal neutrons interacting with the gadolinium-containing material generate electrons that induce a change in current flowing through the semiconductor transistor to provide neutron detection. | 03-07-2013 |
20130187056 | STRESS REDUCTION FOR PILLAR FILLED STRUCTURES - According to one embodiment, an apparatus for detecting neutrons includes an array of pillars, wherein each of the pillars comprises a rounded cross sectional shape where the cross section is taken perpendicular to a longitudinal axis of the respective pillar, a cavity region between each of the pillars, and a neutron sensitive material located in each cavity region. | 07-25-2013 |
20130240743 | NEUTRON DETECTOR ATTACHMENT DEVICE - An auxiliary neutron detector apparatus designed for attaching and supplementation to an existing gamma-ray spectrometer adds improved neutron detection capabilities. The apparatus uses the existing detector and so does not require additional detector materials, including | 09-19-2013 |
20130240744 | NEUTRON DETECTION CHIP ASSEMBLY - A neutron detector and method of manufacture are provided. The neutron detector includes a sensing element structure having a substrate with a front surface and a back surface, opposite to the front surface. A semiconductor sensing element is fabricated in an active semiconductor layer on the front surface of the first substrate and is sensitive to a charged particle. A neutron conversion structure is attached to the back surface and includes neutron conversion material that emits the charged particle in response to a reaction with neutrons. | 09-19-2013 |
20140027648 | Neutron Detector - The invention relates to a neutron detector ( | 01-30-2014 |
20140061487 | NANOCRYSTALLINE OPTICALLY-BASED NEUTRON IRRADIATION HISTORY SENSOR - A neutron irradiation history sensor and detection method for detection of thermal neutrons exploit transmutation of | 03-06-2014 |
20140077087 | Neutron Detection - A method for detecting a neutron includes providing a first voltage to an input electrode of a microchannel plate, providing a second voltage to an output electrode of the microchannel plate, the second voltage being more positive than the first voltage, measuring a signal on the output electrode, and detecting a neutron based on a comparison of the signal at the output electrode with a baseline value. | 03-20-2014 |
20140077088 | 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. | 03-20-2014 |
20140077089 | NEUTRON DETECTOR - A device for detecting neutrons includes at least one common module, where a number of solid state sensors are assembled. The sensors are configured in the module side by side and/or stacked in a layered structure. At least one of the sensors includes neutron reactive material as a neutron converter for interacting with neutrons incident thereon to be detected and to release ionizing radiation reaction products responsive to interactions with the incident neutrons. The neutron converters are coupled with corresponding semiconductor elements so that the semiconductor elements interact with the ionizing radiation reaction products for providing electrical charges in proportion to the energy of the ionizing radiation reaction products. The semiconductor elements are configured with electrodes for providing charge collection areas for collecting the electrical charges and to provide electrically readable signals proportional to the collected electrical charges. | 03-20-2014 |
20140158893 | METHOD AND APPARATUS FOR NEUTRON DETECTION - Embodiments of the present invention provide a neutron spectrometry system, comprising a plurality of semiconductor detector portions arranged in close proximity, wherein the detector portions are arranged in at least two non-parallel axes, wherein each detector portion is arranged to output a detection signal indicative of energy deposited in the detector portion by ionising particles induced in the device by incident neutrons, and a control unit arranged to receive the plurality of detection signals, and to allocate detection signals to one or more of a plurality of channels based on a number of substantially coincident detection signals for determining a spectrum of incident neutrons based thereon. | 06-12-2014 |
20140246597 | System for Detecting Special Nuclear Materials - Embodiments of the present invention can include radiological material detector having a convertor material that emits one or more photons in response to a capture of a neutron emitted by a radiological material; a photon detector arranged around the convertor material and that produces an electrical signal in response to a receipt of a photon; and a processor connected to the photon detector, the processor configured to determine the presence of a radiological material in response to a predetermined signature of the electrical signal produced at the photon detector. One or more detectors described herein can be integrated into a detection system that is suited for use in port monitoring, treaty compliance, and radiological material management activities. | 09-04-2014 |
20140252240 | PHASE-SENSITIVE TWO-DIMENSIONAL NEUTRON SHEARING INTERFEROMETER AND HARTMANN SENSOR - A neutron imaging system detects both the phase shift and absorption of neutrons passing through an object. The neutron imaging system is based on either of two different neutron wavefront sensor techniques: | 09-11-2014 |
20140264048 | NEUTRON RADIATION SENSOR - Embodiments utilize high energy particles generated by nuclear reactions involving neutron radiation and neutron-sensitive materials to generate and maintain an electric potential gradient between an electrode and a region separated from the electrode by an electric insulator. System and methods contemplated by the invention thereby enable passive detection of neutrons without an externally applied electric potential bias by maintaining a charge accumulation facilitated by nuclear reactions involving neutrons. The charge accumulation produces an electric potential gradient within an electric insulator that separates the charge accumulation from an exterior region. | 09-18-2014 |
20140332691 | SINGLE LAYER 3D TRACKING SEMICONDUCTOR DETECTOR - The present invention relates to a pixel detector ( | 11-13-2014 |
20140339433 | 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. | 11-20-2014 |
20150053863 | DETECTION DEVICES AND METHODS - A device for detecting neutrons with gamma discrimination and/or gamma radiation includes a first semiconductor layer, a second semiconductor layer, an electron separator layer between the first semiconductor device and the second semiconductor device, and a gadolinium-containing layer between the first semiconductor layer and the second semiconductor layer. | 02-26-2015 |
20150060680 | RED BORON SOLID STATE DETECTOR - A solid state detector with alpha rhombohedral red boron is disclosed. The solid state detector detects neutrons, especially thermal neutrons. The detector may include a body of alpha rhombohedral red boron disposed between electrodes, a power supply for applying a voltage to said electrodes, and a detecting device that detects and measures a current pulse emitted from said body of alpha rhombohedral red boron to detect the neutrons. | 03-05-2015 |
20150115164 | 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 at least one of hafnium (Hf), samarium (Sm), erbium (Er), neodymium (Nd), tantalum (Ta), lutetium (Lu), europium (Eu), dysposium (Dy), or thulium (Tm). | 04-30-2015 |
20150316662 | COMBINED NEUTRON AND GAMMA-RAY DETECTOR AND METHOD - A method for detecting both gamma-ray events and neutron events with a common detector, where the detector includes a layer of semiconductor material bounded by electrodes, and the electrodes include an anode on one side of the semiconductor material and a cathode on the other side of the semiconductor material, includes the following steps: (a) monitoring the electrical signal at each of the anode and the cathode; and (b) comparing the magnitude of the signals at the anode and the cathode, and the transit time difference between the start of the anode signal and the time when the anode signal reaches a maximum, relatively constant value. In the comparing step, predetermined criteria are used to differentiate between gamma-ray events and neutron events. | 11-05-2015 |
20150362605 | LIQUID-SEMICONDUCTOR NEUTRON DETECTOR - The invention relates to a liquid-semiconductor neutron detector characterised in that it comprises a hybrid structure consisting of a solid phase and a liquid phase, where the solid phase comprises a substrate of a semiconductor material characterised in that it has a series of grooves along the surface of one of the faces thereof forming an electrode of the detector, and where the liquid phase is contained in said grooves and characterised in that it comprises at least one neutron converter compound containing at least one isotope that is able to capture neutrons and replace them with charged particles suitable for ionising the semiconductor material. The invention also relates to the method for producing said detector and to the use thereof. | 12-17-2015 |
20160003953 | THIN FILM TRANSISTOR DETECTION SYSTEMS AND RELATED METHODS - Some embodiments include a system. The system includes a sensor device having a sensor element having a sensor output and an amplification element having at least one amplification stage, an amplifier input, and an amplifier output. The sensor output can be coupled to the amplifier input. Further, each amplification stage of the amplification stage(s) can have at least four thin film transistors, an input node, and an output node. Meanwhile, the sensor element can detect a physical quantity and/or an event and can provide an electric signal to the amplification element in response to detecting the physical quantity and/or the event, and the amplification element can amplify the electric signal received from the sensor element. Other embodiments of related systems and methods are also disclosed. | 01-07-2016 |
20160035913 | Solid State Detection Devices, Methods of Making and Methods of Using - The present application is directed to a solid state device for detecting neutrons. The device includes a semiconductor substrate having pores. The device also includes a p- or n-type doping layer formed on a surface of the pores. Moreover, a layer of fill material is formed on the p- or n-type doping layer. The present application also is directed to a method of making a solid state device. Further, the present application is directed to a method of detecting efficiency of solid state detector devices. | 02-04-2016 |
20160146953 | THERMAL NEUTRON DETECTOR AND GAMMA-RAY SPECTROMETER UTILIZING A SINGLE MATERIAL - A combined thermal neutron detector and gamma-ray spectrometer system, including: a detection medium including a lithium chalcopyrite crystal operable for detecting thermal neutrons in a semiconductor mode and gamma-rays in a scintillator mode; and a photodetector coupled to the detection medium also operable for detecting the gamma rays. Optionally, the detection medium includes a | 05-26-2016 |