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| Number | Title | Issue Date |
| 8358731 | Method and apparatus for detecting and classifying explosives and controlled substances A system for detecting and classifying small amounts of explosives and other controlled substances while rejecting confounders, including a source/detector array formed of a plurality of sources and a plurality of detectors, a signal processor coupled to the source/... | 01/22/2013 |
| 7756237 | 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 ... | 07/13/2010 |
| 7639770 | Cylindrical neutron generator A cylindrical neutron generator is formed with a coaxial RF-driven plasma ion source and target. A deuterium (or deuterium and tritium) plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical neutron generating ta... | 12/29/2009 |
| 7505544 | Method and apparatus for detecting and classifying explosives and controlled substances A system for detecting and classifying small amounts of explosives and other controlled substances while rejecting confounders, including a source/detector array formed of a plurality of sources and a plurality of detectors, a signal processor coupled to the source/... | 03/17/2009 |
| 7430479 | System and method for analyzing content data The system and method provide security and cargo handling personnel a versatile tool to rapidly check cargo for hidden radiological materials, explosives, drugs, and chemical weapons material. Gamma ray emission is stimulated by a pulsed neutron source. The gamma ra... | 09/30/2008 |
| 7423273 | Object examination by delayed neutrons In accordance with an embodiment, a method of examining contents of an object is disclosed comprising conducting a first examination of an object, checking for the presence of delayed neutrons if the first examination indicates that suspect material is present, and ... | 09/09/2008 |
| 7420175 | Explosives detection by directional fast neutron beams scan with associated particles This invention is related to equipment and techniques for fast neutron activation analysis of explosives and /or other warfare agent. The techniques are based on 14 MeV fast neutrons from D-T fusion reaction, the kinematics of the nuclear reaction and fast coinciden... | 09/02/2008 |
| 7358733 | High performance security inspection system with physically isolated detection sensors An inspection system includes a housing having a cavity which defines an inspection zone, and a positioning device within the inspection zone which provides positioning of a specimen within the inspection zone. The inspection system includes a sensor system for insp... | 04/15/2008 |
| 7349517 | System for measuring burn-out of fuel elements of a high-temperature reactor The burnout of a fuel element in a reactor is determined by first transferring a fuel element from a reactor to a measuring position and then subjecting the transferred fuel element at the position to a neutron flux. A first detector measures the total γ radiation ... | 03/25/2008 |
| 7334466 | Method and apparatus for predicting and evaluating projectile performance Apparatus and accompanying methods to evaluate the performance of an antipersonnel/canister projectile using either test data or theoretical data. It provides a three dimensional projection of the fragments/payload that can be evaluated using a variety of performanc... | 02/26/2008 |
| 7317195 | Quantitative transmission/emission detector system and methods of detecting concealed radiation sources Apparatus and methods for screening inanimate objects for detecting concealed radioactive substances. The apparatus and method use a combination of at least one gamma-emission detector and the generation of a transmission image to non-invasively evaluate the content... | 01/08/2008 |
| 7313221 | Radiographic equipment The invention concerns radiographic equipment. The equipment includes a source of substantially mono-energetic fast neutrons produced via the deuterium-tritium or deuterium-deuterium fusion reactions, comprising a sealed-tube or similar generator for producing the n... | 12/25/2007 |
| 7310060 | Multi-mode landmine detector An multi-mode target detection system includes a ground penetrating metal detector and a ground penetrating radar detector permitting operation of the system in a variety of target detection modes. The system includes a control section having a selection device for ... | 12/18/2007 |
| 7285784 | Real time method and computer system for identifying radioactive materials from HPGe gamma-ray spectroscopy A real-time method and computer system for identifying radioactive materials which collects gamma count rates from a HPGe gamma-radiation detector to produce a high-resolution gamma-ray energy spectrum. A library of nuclear material definitions (“library definitio... | 10/23/2007 |
| 7286638 | Methods and systems for determining the average atomic number and mass of materials Disclosed herein are methods and systems of scanning a target for potential threats using the energy spectra of photons scattered from the target to determine the spatial distributions of average atomic number and/or mass in the target. An exemplary method comprises... | 10/23/2007 |
| 7277521 | Detecting special nuclear materials in containers using high-energy gamma rays emitted by fission products A method and a system for detecting the presence of special nuclear materials in a container. The system and its method include irradiating the container with an energetic beam, so as to induce a fission in the special nuclear materials, detecting the gamma rays tha... | 10/02/2007 |
| 7236566 | In-situ X-ray diffraction system using sources and detectors at fixed angular positions An x-ray diffraction technique for measuring a known characteristic of a sample of a material in an in-situ state. The technique includes using an x-ray source for emitting substantially divergent x-ray radiation—with a collimating optic disposed with respect to t... | 06/26/2007 |
| 7231011 | Apparatus for photon activation positron annihilation analysis Non-destructive testing apparatus according to one embodiment of the invention comprises a photon source. The photon source produces photons having predetermined energies and directs the photons toward a specimen being tested. The photons from the photon source resu... | 06/12/2007 |
| 7227466 | Expendable metal detector An expendable metal detector system for facilitating the detection of improved explosive devices (IED) where the metal detector is launched toward the suspected IED and using either magnetic field sensors in a passive mode to detect magnetic anomalies or current pul... | 06/05/2007 |
| 7203669 | Detector tree of boosted classifiers for real-time object detection and tracking A tree classifier may include a number of stages. Some stages may include monolithic classifiers, and other stages may be split into two or more classifiers. ... | 04/10/2007 |
| 7161150 | Handheld isotope identification system A portable radiation detector using a high-purity germanium crystal as the sensing device. The crystal is fabricated such that it exhibits a length to width ratio greater than 1:1 and is oriented within the detector to receive radiation along the width of said cryst... | 01/09/2007 |
| 7151447 | Detection and identification of threats hidden inside cargo shipments A method for identifying at least one threat to the homeland security. Each threat is either hidden inside at least one cargo container before transit, or is placed inside at least one cargo container while in transit. Each threat while interacting with its surround... | 12/19/2006 |
| 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 |
| 7152002 | Method and apparatus for analysis of elements in bulk substance A substance analyzer utilizing Prompt Gamma Neutron Activation Analysis for identifying characteristics of a substance and method of manufacturing the same are disclosed. The analyzer is small enough to be portable and to allow its use in many applications where cur... | 12/19/2006 |
| 7139350 | Method and apparatus for measuring radiation in a borehole Apparatus and methods for measuring radiation in a borehole environment using a YAlO3:Ce (YAP) scintillation crystal. Borehole instruments are disclosed which employ a gamma ray detector comprising a YAP scintillator coupled to a light sensing means such ... | 11/21/2006 |
| 7120226 | Adaptive scanning of materials using nuclear resonance fluorescence imaging A method for detecting nuclear species in a sample by adaptive scanning using nuclear resonance fluorescence may comprise illuminating the target sample with photons from a source; detecting a signal in an energy channel; determining a scan evaluation parameter usin... | 10/10/2006 |
| 7116235 | Inverse ratio of gamma-ray and neutron emissions in the detection of radiation shielding of containers The presence of radiation shielding material concealing illegitimate content in a container is detected by obtaining each of measured gamma-ray data and measured neutron data from the container, and comparing the measured gamma-ray and neutron data to expected gamma... | 10/03/2006 |
| 7094608 | Method for measuring lanthanide content dissolved in uranium oxide The present invention relates to a method for measuring the content of Lanthanides dissolved in uranium oxide, wherein the Lanthanides content in the nuclear fuel pellet is measured using the thermo gravimetric analysis which measures the weight variation caused by ... | 08/22/2006 |
| 7082849 | Apparatus and method for extracting volatile constituents A method and apparatus for ensuring the collecting volatile constituents contained in a solid sample S such as leaf tobacco. In particular, a sample vessel 10 for containing a sample of a solid containing volatile constituents, a gas feeding device 16 ... | 08/01/2006 |
| 7072440 | Tomographic scanning X-ray inspection system using transmitted and Compton scattered radiation X-ray radiation is transmitted through and scattered from an object under inspection to detect weapons, narcotics, explosives or other contraband. Relatively fast scintillators are employed for faster X-ray detection efficiency and significantly improved image resol... | 07/04/2006 |
| 7058153 | Method for photon activation positron annihilation analysis A non-destructive testing method comprises providing a specimen having at least one positron emitter therein; determining a threshold energy for activating the positron emitter; and determining whether a half-life of the positron emitter is less than a selected half... | 06/06/2006 |
| 6999021 | Method and apparatus for detecting, mapping and locating underground utilities The method and device for locating underground utilities within an area includes traversing the area with a plurality of underground utility sensors and obtaining area location data to locate the area traversed. The sensor data and area location data are used to map... | 02/14/2006 |
| 6954512 | Neutron spectrometer with aluminum proton absorber A neutron spectrometer is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as a proton absorber, with th... | 10/11/2005 |
| 6928131 | Method for detecting an explosive in an object under investigation A method for detecting an explosive in an object under investigation involves the initial X-ray irradiation of the object under investigation, e.g. a piece of luggage or mailing, and forming its X-ray images; using the X-ray images to detect areas with a high densit... | 08/09/2005 |
| 6922460 | Explosives detection system using computed tomography (CT) and quadrupole resonance (QR) sensors An explosives detection system which includes computed tomography (CT) and quadrupole resonance (QR) sensors for identifying particular explosive compounds present in passenger baggage. The CT sensor may be configured to automatically identify the presence or absenc... | 07/26/2005 |
| 6922455 | Gas-target neutron generation and applications Described herein are integrated systems for generating neutrons to perform a variety of tasks including: on-line analysis of bulk material and industrial process control (as shown in FIG. 1), security interrogation (as shown in FIG. 2), soil and enviro... | 07/26/2005 |
| 6909764 | Method and apparatus for high-energy generation and for inducing nuclear reactions A system is provided for generating high-energy particles and for inducing nuclear reactions. The system includes a laser and for emitting a laser beam, an irradiation target for receiving the laser beam and producing high-energy particles, and a secondary target fo... | 06/21/2005 |
| 6907097 | Cylindrical neutron generator A cylindrical neutron generator is formed with a coaxial RF-driven plasma ion source and target. A deuterium (or deuterium and tritium) plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical neutron generating ta... | 06/14/2005 |
| 6895065 | Method and apparatus for identifying nuclear fuels The device comprises a detector (15) of radiation that could be neutron radiation and a detector (16) of another type of radiation, for example gamma radiation. The process consists in deducing a burn up fraction or irradiation of the nuclear fuel (... | 05/17/2005 |
| 6720552 | Repeating pulsed magnet A magnet for use with a neutron scattering apparatus. The neutron scattering apparatus provides an incident beam of neutrons to a sample under analysis. The magnet has first and second body portions of high conductivity material and has a mid-plane portion there bet... | 04/13/2004 |
