NUCSAFE, INC. Patent applications |
Patent application number | Title | Published |
20160070021 | Depth Determination in X-ray Backscatter System Using Frequency Modulated X-Ray Beam - An X-ray backscatter imaging system uses frequency modulated X-rays to determine depth of features within a target. An X-ray source generates X-ray radiation modulated by a frequency-modulated bias current. The X-ray radiation impinges upon and is backscattered from multiple depths within the target. A scintillating material receives the backscattered X-rays and generates corresponding photons. A photodetector, having gain modulated by the frequency modulation signal from the local oscillator, receives the photons from the scintillating material and generates an analog output signal containing phase delay information indicative of the distance travelled by the X-rays backscattered from multiple depths within the target. The analog output signal is sampled by an analog-to-digital converter to create a digital output signal. A computer processor performs a discrete Fourier transform on the digital output signal to provide target depth information based on the phase delay information. | 03-10-2016 |
20150355346 | Composite Neutron Scintillator - Disclosed herein is a radiation scintillator configured for discrimination of thermal neutrons over gamma radiation and methods for making the same. The scintillator includes a non-scintillating base material and a plurality of spaced-apart micro-particles disposed in the base material. Each micro-particle includes a micro-particle base material, a neutron absorber that emits a neutron reaction product when exposed to thermal neutrons, and a scintillator dopant that emits a scintillation light when exposed to the neutron reaction product. | 12-10-2015 |
20120112082 | SCINTILLATOR PANEL HAVING UNIFORM OUTPUT RESPONSE - A scintillator panel assembly for gamma ray detection includes a scintillator panel having fluorescent material therein for generating a photon when a gamma ray enters the panel, and one or more non-scintillating segments embedded in opposing edges of the scintillator panel which conduct light but do not generate a photon when a gamma ray enters. One or more photon detectors, such as photomultiplier tubes, are disposed immediately adjacent the one or more non-scintillating segments for receiving photons conducted through the non-scintillating segments. The non-scintillating segments preferably have optical transmission and reflection properties that are substantially the same as the optical transmission and reflection properties of the scintillator panel. This configuration provides substantially uniform light output response for all photon generation locations which results in improved spectral resolution. | 05-10-2012 |
20110298622 | Radiation Portal with Occupancy and Motion Sensing System - Disclosed is a radiation monitoring system that has a radiation detector for making radiation measurements within a monitored area. An occupancy sensor may be provided for detecting a presence of an entity in the monitored area, and a motion sensor may be provided for detecting a motion of the entity in the monitored area. In a typical embodiment, a radiation measurement collection system is provided which has a first program logic element for collecting the radiation measurements as collected radiation measurements when the presence of the entity is detected and the motion of the entity is detected. Also provided is a method for monitoring an area for intermittent sources of radiation. | 12-08-2011 |
20110268247 | MULTI-PROFILE PENETRATING RADIATION IMAGING SYSTEM - Systems for scanning an object are disclosed. Such systems typically are used to inspect various objects with equipment that produces an image of the object based on penetrating radiation. Examples are X-Ray imaging, infrared imaging, terahertz imaging, and radar imaging. The systems typically include a radiation source and a rotating collimator for generating a beam of energy. A detection array is provided for detecting imagery elements from the beam of energy. A motion controller is provided for instructing a positional driver system to move the radiation source, the rotating collimator and the detector system to the plurality of locations about a support structure. The motion controller may also instruct the positional driver system to turn, oscillate, or otherwise maneuver a portion of the imaging system to the virtually limitless orientations made possible by the disclosed embodiments. | 11-03-2011 |
20110019799 | SPATIAL SEQUENCED BACKSCATTER PORTAL - Systems and methods for scanning an object in an inspection space are disclosed. The systems and methods generally incorporate spatially separated and sequenced Compton x-ray backscatter imaging techniques in a plurality of perspective planes. Such processes as time-gating detectors, weighting scintillation detections, and preferentially accepting signals that originate from a point that is substantially orthogonal to a radiation detector and at least partially shielding out signals that do not originate from a point substantially orthogonal to the detector may be used to enhance the data acquisition process. | 01-27-2011 |
20100046690 | Apparatus and Method for Detection of Fissile Material Using Active Interrogation - A system for interrogating a package, container, vehicle, or similar examination article for the presence of nuclear material. The system typically includes a source of photo-fission energy configured to irradiate the examination article and trigger fission of a fissile or a fissionable material present in the examination article and generate a plurality of fission products, wherein at least one of the plurality of fission products produces a plurality of fission neutrons. A neutron-to-gamma-ray-converter material may be configured to capture up to all of the plurality of fission neutrons and upon capture to emit internal gamma radiation. A gamma radiation detector is typically configured to detect at least a portion of the internal gamma radiation. | 02-25-2010 |