Abstract: A system identifying a source of radiation is provided. The system includes a radiation source detector and a radiation source identifier. The radiation source detector receives measurements of radiation; for one or more sources, generates a detection metric indicating whether that source is present in the measurements; and evaluates the detection metrics to detect whether a source is present in the measurements. When the presence of a source in the measurements is detected, the radiation source identifier for one or more sources, generates an identification metric indicating whether that source is present in the measurements; generates a null-hypothesis metric indicating whether no source is present in the measurements; evaluates the one or more identification metrics and the null-hypothesis metric to identify the source, if any, that is present in the measurements.

Abstract: A system identifying a source of radiation is provided. The system includes a radiation source detector and a radiation source identifier. The radiation source detector receives measurements of radiation; for one or more sources, generates a detection metric indicating whether that source is present in the measurements; and evaluates the detection metrics to detect whether a source is present in the measurements. When the presence of a source in the measurements is detected, the radiation source identifier for one or more sources, generates an identification metric indicating whether that source is present in the measurements; generates a null-hypothesis metric indicating whether no source is present in the measurements; evaluates the one or more identification metrics and the null-hypothesis metric to identify the source, if any, that is present in the measurements.

Abstract: A simulation system provides real-time, flexible, and accurate simulations of radiological scenarios that can provide robust and valuable training experience to users. A radiological scenario simulation provided by a simulation system includes simulated neutron and gamma measurements provided by a neutron simulation service and a gamma simulation service, respectively. Each of the neutron simulation service and the gamma simulation service perform accelerated computational techniques to provide the simulation results to the radiological scenario simulation in real-time. In particular, the neutron simulation service performs a particle-wise simulation with an optimized number of neutron particles, scales detector objects to an increased size, and models fission behavior for a source object based on simulated neutron particles being scattered back into the source object.

Abstract: A system identifying a source of radiation is provided. The system includes a radiation source detector and a radiation source identifier. The radiation source detector receives measurements of radiation; for one or more sources, generates a detection metric indicating whether that source is present in the measurements; and evaluates the detection metrics to detect whether a source is present in the measurements. When the presence of a source in the measurements is detected, the radiation source identifier for one or more sources, generates an identification metric indicating whether that source is present in the measurements; generates a null-hypothesis metric indicating whether no source is present in the measurements; evaluates the one or more identification metrics and the null-hypothesis metric to identify the source, if any, that is present in the measurements.

Abstract: A system identifying a source of radiation is provided. The system includes a radiation source detector and a radiation source identifier. The radiation source detector receives measurements of radiation; for one or more sources, generates a detection metric indicating whether that source is present in the measurements; and evaluates the detection metrics to detect whether a source is present in the measurements. When the presence of a source in the measurements is detected, the radiation source identifier for one or more sources, generates an identification metric indicating whether that source is present in the measurements; generates a null-hypothesis metric indicating whether no source is present in the measurements; evaluates the one or more identification metrics and the null-hypothesis metric to identify the source, if any, that is present in the measurements.

Abstract: A system identifying a source of radiation is provided. The system includes a radiation source detector and a radiation source identifier. The radiation source detector receives measurements of radiation; for one or more sources, generates a detection metric indicating whether that source is present in the measurements; and evaluates the detection metrics to detect whether a source is present in the measurements. When the presence of a source in the measurements is detected, the radiation source identifier for one or more sources, generates an identification metric indicating whether that source is present in the measurements; generates a null-hypothesis metric indicating whether no source is present in the measurements; evaluates the one or more identification metrics and the null-hypothesis metric to identify the source, if any, that is present in the measurements.

Abstract: A system identifying a source of radiation is provided. The system includes a radiation source detector and a radiation source identifier. The radiation source detector receives measurements of radiation; for one or more sources, generates a detection metric indicating whether that source is present in the measurements; and evaluates the detection metrics to detect whether a source is present in the measurements. When the presence of a source in the measurements is detected, the radiation source identifier for one or more sources, generates an identification metric indicating whether that source is present in the measurements; generates a null-hypothesis metric indicating whether no source is present in the measurements; evaluates the one or more identification metrics and the null-hypothesis metric to identify the source, if any, that is present in the measurements.

Abstract: An automated apparatus for large-area scanning of wind turbine blades or other large-bodied structures (such as aircraft fuselages and wings) for the purpose of non-destructive inspection (NDI). One or more vacuum-adhered scanning elements containing NDI sensors are lowered via cables and moved via a motorized cart driven along a leading edge of a horizontally disposed wind turbine blade or via a motorized carriage driven around a track attached to a vertically disposed wind turbine blade. Scan passes are based upon sequenced horizontal and vertical motions of scan heads provided by cart/carriage and cable spool motion. A conformable array of sensors attached to the cart may be used to collect NDI data along the leading edge of a horizontally disposed wind turbine blade if the scan heads cannot reach that area.

Abstract: A system identifying a source of radiation is provided. The system includes a radiation source detector and a radiation source identifier. The radiation source detector receives measurements of radiation; for one or more sources, generates a detection metric indicating whether that source is present in the measurements; and evaluates the detection metrics to detect whether a source is present in the measurements. When the presence of a source in the measurements is detected, the radiation source identifier for one or more sources, generates an identification metric indicating whether that source is present in the measurements; generates a null-hypothesis metric indicating whether no source is present in the measurements; evaluates the one or more identification metrics and the null-hypothesis metric to identify the source, if any, that is present in the measurements.

Abstract: A system identifying a source of radiation is provided. The system includes a radiation source detector and a radiation source identifier. The radiation source detector receives measurements of radiation; for one or more sources, generates a detection metric indicating whether that source is present in the measurements; and evaluates the detection metrics to detect whether a source is present in the measurements. When the presence of a source in the measurements is detected, the radiation source identifier for one or more sources, generates an identification metric indicating whether that source is present in the measurements; generates a null-hypothesis metric indicating whether no source is present in the measurements; evaluates the one or more identification metrics and the null-hypothesis metric to identify the source, if any, that is present in the measurements.

Abstract: An automated apparatus for large-area scanning of wind turbine blades or other large-bodied structures (such as aircraft fuselages and wings) for the purpose of non-destructive inspection (NDI). One or more vacuum-adhered scanning elements containing NDI sensors are lowered via cables and moved via a motorized cart driven along a leading edge of a horizontally disposed wind turbine blade or via a motorized carriage driven around a track attached to a vertically disposed wind turbine blade. Scan passes are based upon sequenced horizontal and vertical motions of scan heads provided by cart/carriage and cable spool motion. A conformable array of sensors attached to the cart may be used to collect NDI data along the leading edge of a horizontally disposed wind turbine blade if the scan heads cannot reach that area.

Abstract: A system identifying a source of radiation is provided. The system includes a radiation source detector and a radiation source identifier. The radiation source detector receives measurements of radiation; for one or more sources, generates a detection metric indicating whether that source is present in the measurements; and evaluates the detection metrics to detect whether a source is present in the measurements. When the presence of a source in the measurements is detected, the radiation source identifier for one or more sources, generates an identification metric indicating whether that source is present in the measurements; generates a null-hypothesis metric indicating whether no source is present in the measurements; evaluates the one or more identification metrics and the null-hypothesis metric to identify the source, if any, that is present in the measurements.

Abstract: An automated human personnel fall arresting system including a holonomic base platform, a boom arm movably mounted to and depending from the base platform, at least a portion of the arm being movable in three degrees-of-freedom relative to the base platform, a tether supported by the arm, an operator harness coupled to the tether so as to be dependent from the arm, at least one sensor disposed on the arm and configured to sense movement of the portion of the arm in two degrees-of-freedom of the three degrees-of-freedom, and a controller mounted to the base platform and communicably coupled to the at least one sensor, the controller being configured to automatically control position of the base platform in two orthogonal translational directions and one rotation direction controlled independently from translation, relative to the operator harness, based on signals from the at least one sensor.

Abstract: An automated human personnel fall arresting system including a holonomic base platform, a boom arm movably mounted to and depending from the base platform, at least a portion of the arm being movable in three degrees-of-freedom relative to the base platform, a tether supported by the arm, an operator harness coupled to the tether so as to be dependent from the arm, at least one sensor disposed on the arm and configured to sense movement of the portion of the arm in two degrees-of-freedom of the three degrees-of-freedom, and a controller mounted to the base platform and communicably coupled to the at least one sensor, the controller being configured to automatically control position of the base platform in two orthogonal translational directions and one rotation direction controlled independently from translation, relative to the operator harness, based on signals from the at least one sensor.

Abstract: A self-contained, holonomic motion tracking solution for supplementing the acquisition of inspection information on the surface of a structure, thereby enabling the real-time production of two-dimensional images from hand-held and automated scanning by holonomic-motion of non-destructive inspection (NDI) sensor units (e.g., NDI probes). The systems and methods disclosed enable precise tracking of the position and orientation of a holonomic-motion NDI sensor unit (hand-held or automated) and conversion of the acquired tracking data into encoder pulse signals for processing by a NDI scanning system.

Abstract: A system for automated inspection of a surface; the system may include a self-propelled, steerable carriage capable of traversing the surface, the carriage having a camera positioned to view an object on the surface, and at least of one of a sensor capable of detecting a defect in the surface, a tool for treating the defect, and a sensor for inspecting a repair of the defect; and a computer controller connected to receive image data from the camera, communicate with and selectively actuate the at least of one of a sensor capable of detecting a defect in the surface, a tool for treating the defect, and a sensor for inspecting a repair of the defect, and control the carriage to move on the surface along one or more of a pre-set path and a path to one or more pre-set locations.

Abstract: Embodiments of techniques and technologies to verify the interference fit of fasteners are disclosed. In one embodiment, a transducer is positioned to transmit a shear ultrasonic signal through a region of a fastener which is subject to stress when the fastener experiences an interference fit. The shear ultrasonic signal is transmitted through a region of the fastener subject to the stress. As the transmitted ultrasonic signal encounters the region, it is mode converted corresponding to a degree of interference which the fastener is experiencing. A return ultrasonic signal from the fastener is received with the transducer. From the return ultrasonic signal, a processor determines the degree of interference fit which the fastener is experience and outputs an indication of the same.

Abstract: Embodiments of techniques and technologies to verify the interference fit of fasteners are disclosed. In one embodiment, a transducer is positioned to transmit a shear ultrasonic signal through a region of a fastener which is subject to stress when the fastener experiences an interference fit. The shear ultrasonic signal is transmitted through a region of the fastener subject to the stress. As the transmitted ultrasonic signal encounters the region, it is mode converted corresponding to a degree of interference which the fastener is experiencing. A return ultrasonic signal from the fastener is received with the transducer. From the return ultrasonic signal, a processor determines the degree of interference fit which the fastener is experience and outputs an indication of the same.

Abstract: Embodiments of techniques and technologies to verify the interference fit of fasteners are disclosed. In one embodiment, a transducer is positioned to transmit a shear ultrasonic signal through a region of a fastener which is subject to stress when the fastener experiences an interference fit. The shear ultrasonic signal is transmitted through a region of the fastener subject to the stress. As the transmitted ultrasonic signal encounters the region, it is mode converted corresponding to a degree of interference which the fastener is experiencing. A return ultrasonic signal from the fastener is received with the transducer. From the return ultrasonic signal, a processor determines the degree of interference fit which the fastener is experience and outputs an indication of the same.

Abstract: Embodiments of techniques to verify the interference fit of fasteners are disclosed. In one embodiment, a method includes aligning a probe proximate a fastener, the fastener being disposed within a material. A dynamic stress signal is generated from the probe using a low frequency transducer, and the dynamic stress signal is interrogated after it passes between the fastener and the material. An interference fit is then determined based on the interrogated dynamic stress signal.