Abstract: For determining whether oil waste at a field testing site is exempt from selected naturally occurring radioactive material (NORM) waste regulations, a measurement apparatus including a detection module that determine radioactivity counts per minute for an oil waste sample is utilized. The measurement apparatus includes an analysis module that uses a first nonlinear transfer function to determine a mass for the oil waste based on a volume of solids determined via BS&W testing. The analysis module uses a second nonlinear transfer function to determine a maximum radioactivity level for the sample which is then normalized to picoCuries/g. The normalized maximum radioactivity level per gram is compared to a NORM exemption level for a selected region and communicated to entities at the field-testing site and optionally to other entities. A system and a method perform the functions of the measurement apparatus.

Abstract: A method of imaging comprises disposing a population of first targeting ultrasound-switchable fluorophores and a population of second non-targeting ultrasound-switchable fluorophores in an environment; detecting a first photoluminescence signal emitted by the population of first targeting fluorophores, and a second photoluminescence signal emitted by the population of second non-targeting fluorophores; determining a photoluminescence property of the population of second non-targeting fluorophores from the second photoluminescence signal; and using the determined photoluminescence property of the population of second non-targeting fluorophores to deconvolute the first photoluminescence signal into the population of first targeting fluorophores bound and unbound to a first target binding element in the environment.

Abstract: This invention is capable of improving performance of a biochemical analyzer and facilitating the maintenance. A light source includes: a first LED that emits ultraviolet light and a second LED that has a light emission spectrum different from that of the first LED, the first LED and the second LED being disposed in parallel; a reflection surface that is opposite to the first LED and reflects light of the first LED; and a dichroic surface that is opposite to the second LED, reflects light of the first LED, and allows light of the second LED to penetrate.

Abstract: Automated patient positioning and modelling includes a hardware processor to obtain image data from an imaging sensor, classify the image data, using a first machine learning model, as a patient pose based on one or more pre-defined protocols for patient positioning, provide a confidence score based on the classification of the image data and if the confidence score is less than a pre-determined value, re-classify the image data using a second machine learning model; or if the confidence score is greater than a pre-determined value, identify the image data as corresponding to a patient pose based on one or more pre-defined protocols for patient positioning during a scan procedure.

Abstract: Provided herein is a system and method designed for measuring and recording, in three-dimensional space, an attenuation of cosmic-ray induced muon particle flux through a material. The attenuation of the said muons determines density variations in the said material in terms of their density, depth, shape and size. The muon data may be combined with various other data types. The passing muons are detected and recorded by one or a plurality of muon detection apparatus designed to be robust and shock resistant. If needed, each individual muon detection apparatus may be controlled remotely or automatically. The muon detection system may be powered by an energy storage device that may be recharged using renewable energy, aggregate or electric grid. The invention comprises methods steps allowing density characterisation of the material in various dimensions, including those over time.

Abstract: An apparatus for inspection of a target asset comprises a drone including a body, one or more propellers coupled to the body that enable the drone to fly, and an electronic control unit coupled to or positioned within the body of the drone and coupled to the one or more propellers. The apparatus also comprises a neutron emission source and a neutron detector that are both coupled to the body of the drone and also communicatively coupled to the electronic control unit. The electronic control unit is configured to control navigation of the drone to reach the target asset, to activate the neutron emission source to radiate neutrons onto the asset and to gather data from the neutron detector which detects neutrons backscattered from the asset, indicative of a state of the asset and materials contained within the asset.

Abstract: Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays.

Abstract: One embodiment provides a pyranometer, including: a pyranometer housing; and at least one radiation sensor; wherein the at least one radiation sensor is electrically isolated from the pyranometer housing and thermally coupled to the pyranometer housing by at least one supporting element, wherein the supporting element is connected to the pyranometer housing and is configured to support the at least one radiation sensor. Other aspects are described and claimed.

Abstract: An infrared (IR) radiation sensor for detection of an analyte in a fluid. The IR sensor comprises: i) a housing; ii) a reservoir disposed in the housing and configured to contain the fluid; iii) a fluid channel in communication with the reservoir; and iv) a preconcentration material associated with the fluid channel. The preconcentration material enhances IR bands in an IR spectra. The IR sensor also includes a photonic integrated circuit disposed in the housing. The photonic integrated circuit includes an IR source configured to transmit IR light toward the fluid channel and the preconcentration material. A spectral characteristic of the IR light is changed by the analyte in the fluid in the fluid channel that is trapped in the preconcentration material. The photonic IC also includes an IR detector configured to receive IR light transmitted through or reflected off the preconcentration material and detect the spectral characteristic.

Abstract: Systems and methods for implementing an adaptive therapy workflow that minimizes time needed to create a session patient model, select an appropriate plan for the treatment session, and treat the patient.

Abstract: An optical inspection system is provided with a fixture to support a glass sheet, with the fixture having an optical fiducial. An ultraviolet laser and associated optics form a planar laser sheet that intersects a surface of the glass sheet causing the surface to fluoresce and form a visible wavelength line thereon. A camera has an image sensor for detecting the optical fiducial and the visible wavelength line across at least a portion of a width of the sheet. A control system is configured to (i) image the optical fiducial on the fixture, (ii) define an optical fiducial coordinate system from the imaged optical fiducial, (ii) receive a mathematical model of the glass sheet in a model coordinate system, and (iii) relate the optical fiducial coordinate system to the model coordinate system via at least one transformation. A method of using a non-contact optical inspection system is also provided.

Abstract: A device for measuring large-area radioactive surface contamination can simultaneously obtain a plurality of detection values. The measurement device includes a frame body having a plurality of holes; a mover that is connected to, and moves, the frame body; and a plurality of radiation detectors that rest in the plurality of holes. The detectors detect one or more of: alpha rays, beta rays, or gamma rays. The location and level of radioactive contamination are accurately identified according to a comparison of the detection values of the plurality of radiation detectors.

Abstract: A terahertz light detector includes: a light reception unit that receives terahertz light from a measured object; a pulse laser that generates pulse light; an optical member which the pulse light enters; and a control unit that controls the energy of the pulse light which enters the optical member, wherein the optical member has anomalous dispersion, and the light reception unit outputs a signal that is dependent on an intensity of terahertz light when the pulse light emitted from the optical member enters the light reception unit.

Abstract: A testing apparatus for dynamic characterization of a sample of a material under test. A terahertz (THz) time-domain spectroscopy system is configured and arranged to generate and detect terahertz waves to interrogate the sample. A shock wave loading system is configured and arranged to produce a shock wave in the sample concurrently with said THz spectroscopy device interrogating the sample. The sample undergoes changes in an index of refraction in response to the produced ultrafast shock wave in the sample that are detected by the terahertz spectroscopy system.

Abstract: Radiation source localization systems and related techniques are provided to improve the operation of handheld or unmanned mobile sensor or survey platforms. A radiation source localization system includes a logic device configured to communicate with a communications module and a directional radiation detector, where the communications module is configured to establish a wireless communication link with a base station associated with the directional radiation detector and/or a mobile sensor platform, and the directional radiation detector includes a sensor assembly configured to provide directional radiation sensor data as the directional radiation detector is maneuvered within a survey area.

Abstract: Disclosed herein is a method comprising: aligning a collimator and a plurality of radiation detectors of an image sensor by: moving the radiation detectors along a first direction; moving the collimator along a second direction perpendicular to the first direction; rotating the collimator about an axis perpendicular to the first direction and the second direction; wherein the plurality of radiation detectors are configured to capture images of portions of a scene at different image capturing positions, respectively, and to form an image of the scene by stitching the images of the portions.

Abstract: There is provided a paint including a pigment, a carrier liquid, a binder, one or more additives, and a taggant corresponding to the one or more additives. The taggant is provided in an amount up to substantially 0.1% by weight of the paint. The taggant is excitable by infra-red or UV light at one wavelength to emit light at one or more other wavelengths, the emission wavelength or spectrum of the taggant being indicative of the additive(s) in the paint. A method of authenticating the paint on a substrate is also provided.

Abstract: An optical system may include an objective lens system having a primary optical axis and a relay lens system having a relay optical axis. The relay optical axis may have a first angular offset with respect to the primary optical axis. The objective lens system may be configured to provide light from a light source to the relay lens system and provide light from the relay lens system to an image sensor. The relay lens system may be configured to provide light from the objective lens system to an end face of an optical fiber, where the end face has a second angular offset with respect to a cross-sectional axis of the optical fiber. The relay lens system may provide light reflected from the end face to the objective lens system.

Abstract: The present invention relates to a calibration method for a gamma ray detector (100) including a pixelated scintillator array (110) for emitting scintillation photons at photo conversion positions (94) in response to incident gamma rays (90), and a pixelated photodetector array (120) for determining a spatial intensity distribution of the scintillation photons. The present invention bases on the idea that using the concept of optical light sharing of scintillation photons, which are emitted in one element, i.e., one scintillator pixel (112) of the scintillator array (110) and distributed over multiple photodetector pixels (122) of the pixelated photodetector army (120), allows obtaining an estimate for the time skew between adjacent photodetector pixels (122). The present invention further relates to a calibration module (200) for a gamma ray detector (100) including a recorder (210) and a processing module (220) for performing the function of the above-explained method.

Abstract: A method includes receiving fluid property data of a fluid and receiving material property data for materials in the fluid. The method includes detecting material sensor data from at least one sensor and applying an inverse model and a forward model to the fluid property data and the material property data to provide at least in part synthetic spectral channel data for the materials.