Abstract: A first example azimuthal neutron porosity tool for imaging formation and cement volumes surrounding a borehole is provided, the tool including at least an internal length comprising a sonde section, wherein said sonde section further comprises one sonde-dependent electronics; a slip-ring and motor section; and a plurality of tool logic electronics and PSUs. An alternative azimuthal neutron porosity tool for imaging formation and cement volumes surrounding a borehole is also provided, the tool including at least a far space detector; a near space detector; and a source located within a moderator shield that rotates around an internal tool axis.

Abstract: The active neutron spectrometer (1) comprises a polyhedral moderator body (2) of hydrogenated material having a first, a second and a third orthogonal main axis (X1, X2; Y1, Y2; Z1, Z2), a first series of thermal neutron detectors (3a1, 3a2, 3a3, 3a4, 3a5, 3a6, 3b1, 3b2, 3b3, 3b4, 3b5, 3b6) arranged along the first main axis (X1, X2), a second series of thermal neutron detectors (4a1, 4a2, 4a3, 4a4, 4a5, 4a6, 4b1, 4b2, 4b3, 4b4, 4b5, 4b6) arranged along the second main axis (Y1, Y2), and a third series of thermal neutron detectors (5a1, 5a2, 5a3, 5a4, 5a5, 5a6, 5b1, 5b2, 5b3, 5b4, 5b5, 5b6) arranged along the third main axis (Z1, Z2).

Abstract: The present invention is a motion detection system that will consistently report detected movement, while reducing the number of false reports. The motion detection system includes a receiver and a dual sensor motion detector. The dual sensor motion detector utilizes sensors mounted in a weatherproof chassis. The dual sensors are located at the same vertical height in the weatherproof chassis and separated by a predetermined distance from the center of the chassis. Each sensor is rotated at an angle away from the center of the chassis. Each sensor has a coverage area dictated by its viewing angle (or field-of-view) and viewing distance. By utilizing dual sensors, a user can set the dual sensor motion detector to an AND operation or an OR operation. Motion is detected when both sensors detect movement simultaneously or motion is detected when any one of the two sensors detects movement.

Abstract: Naphthalene, benzene, toluene, xylene, and other volatile organic compounds VOCs have been identified as serious health hazards. Embodiments of the invention are directed to methods and apparatus for near-real-time in-situ detection and accumulated dose measurement of exposure to naphthalene vapor and other hazardous gaseous VOCs. The methods and apparatus employ excitation of fluorophors native or endogenous to compounds of interest using light sources emitting in the ultraviolet below 300 nm and measurement of native fluorescence emissions in distinct wavebands above the excitation wavelength. The apparatus of some embodiments are cell-phone-sized sensor/dosimeter “badges” to be worn by personnel potentially exposed to hazardous VOCs. The badge sensor of some embodiments provides both real time detection and data logging of exposure to naphthalene or other VOCs of interest from which both instantaneous and accumulated dose can be determined.

Abstract: Fluorescence imaging system designs are described that provide larger fields-of-view, increased spatial resolution, improved modulation transfer and image quality, higher spatial sampling frequency, faster transitions between image capture when repositioning the sample plane to capture a series of images (e.g., of different fields-of-view), and improved imaging system duty cycle, and thus enable higher throughput image acquisition and analysis for genomics and other imaging applications.

Abstract: An adaptor for a turntable of a CT system includes at least two object turntables for at least two objects and a rotation transmission element configured to be coupled to the turntable of the CT system. The two object turntables are coupled to each other using a coupler such that the at least two object turntables rotate simultaneously. The rotation transmission element is coupled to the coupler and configured to transmit a rotation from the turntable of the CT system to the coupler in order to drive the at least two object turntables.

Abstract: The present invention provides a method for the quantitative determination of contaminants in the form of fatty acid esters in jet fuels, wherein the analyte is the fatty acid ester fatty acid methyl ester (FAME) and/or the fatty acid ester fatty acid ethyl ester (FAEE), wherein the analyte undergoes a chemical reaction which is selective for it and which influences the intensity for the carbonyl band of the respective ester group with the formation of a modified analyte and the variation in the concentration of analyte in the sample, which is the jet fuel together with FAME and/or FAEE, is measured using the reduction in the intensity of the carbonyl band and/or the increase in the concentration of the modified analyte is measured using the increase in the intensity of a band which is characteristic for the modification.

Abstract: A method of detecting a geometrical phase change of an intrinsic property of a molecular isomerization includes a series of steps, such as simulating molecular isomerization of the molecule through application of a single shaped pulse to generate a molecular polarization. The steps include separating the real and imaginary parts of a nonlinear susceptibility in a detected molecular signal by controlling a phase of a reference field. The steps include assigning a phase function to obtain separation of the real and imaginary parts. Furthermore, a broadened vibrational lineshape is calculated. The step of identifying conical intersections also occurs. Various pathways of a wave packet in an excited state potential energy surface is discussed and may include multiple laser pulses and methods of detection. The spectral phase may be used to create interference of the wave packet in the excited state to identify and control a wavepacket's pathway and control photoisomerization.

Abstract: A method is provided to reduce the counting times in radiation detection systems using machine learning, wherein the method comprises: receiving an output data from a detector which is to detect a target material from a target body; analyzing the output data; identifying a material of interest from the analyzed output data; and controlling a source of the target material to prevent the source from harming the target body. An apparatus is also provided which comprises: a detector to detect radiation and to provide an output data in real-time; and a processor coupled to the detector, wherein the processor is to: receive the output data; analyze the output data; identify a material of interest from the analyzed output data; and control a source of the target material.

Abstract: The present disclosure includes an optical measuring system having at least one light source that radiates excitation light into a medium to be measured. The excitation light is converted into fluorescent light by the medium. The optical measuring system also includes a first photodiode that receives a decay curve of the fluorescent light and converts it into a first signal and at least one optical component that receives the fluorescent light and converts it into a second signal. A data processing unit determines an oil-in-water content based on the first signal and the second signal.

Abstract: Methods and systems for determining the elemental composition of formation rock are disclosed. The systems include a pulsed-neutron geochemical logging tool that is conveyed in a borehole traversing the formation. The pulsed-neutron geochemical logging tool can collect inelastic and capture neutron spectra. The inelastic and capture spectra are processed to provide the elemental composition of formation rock after removing contributions due to elements in the borehole and in the pores of the formation.

Abstract: The present disclosure is directed to an improved method for distinguishing tissue from an embedding medium, such as paraffin in a formalin-fixed paraffin-embedded sample. The method involves the use of fluorescence of naturally-occurring species in tissue to determine the location of the tissue in the embedded sample. An embedded sample is generally excited by light of a selected wavelength, and the fluorescence emission at an emitted wavelength is used to locate the boundary or location of the tissue in the embedded sample.

Abstract: An optical measurement device includes: an optical sensor that detects pulsed signal light and that outputs a detection signal formed of an exponential-function response; an A/D converter that samples the detection signal output from the optical sensor and that converts the detection signal into a digital signal; and a processor comprising hardware, the processor being configured to subject the digital signal output from the A/D converter to inverse transformation by using a multiple diagonal matrix, thus calculating an estimated pulse of the signal light.

Abstract: A radiation detection system may include a mobile device having a flash memory. The device may monitor various characteristics of the flash memory to determine when damage to the flash memory has occurred from radiation exposure. The device may associate damage to the flash memory with a radiation dose, and determine a level of radiation to which the memory, and thus the device, has been exposed. The device also may determine a length of time and locations where the radiation exposure has occurred. If the device determines that the level of radiation exposure exceeds a threshold associated with a safe level of radiation exposure for a human user, the device may generate an alert to the user.

Abstract: An image scanning method for a metallic surface and an image scanning system thereof are provided. The method includes sequentially moving one of a plurality of areas on a metallic surface of an object to a detection position, providing far infrared light by a light source component facing the detection position, wherein a light wavelength of the far infrared light is associated with the object, the far infrared light illuminating the detection position with a light incident angle of less than or equal to 90 degrees relative to a normal line of the area located at the detection position, and capturing a detection image of each of the areas sequentially located at the detection position by a photosensitive element according to the far infrared light, wherein the photosensitive element faces the detection position and a photosensitive axis of the photosensitive element is parallel to the normal line.

Abstract: A method includes receiving a drilling parameter, a tool characterization parameter, and a formation model. The method includes generating a forward model of a tool response at a bed boundary using the one drilling parameter, the tool characterization parameter, and the formation model. The method includes predicting at least two azimuthal gamma logs using the forward model. The method includes determining that a difference between the at least two azimuthal gamma logs generates a confidence level that is greater than a confidence threshold. In response to determining that the difference between the at least two azimuthal gamma logs generates the confidence level that is greater than the confidence threshold, the method includes generating a well plan. The method includes outputting a command for controlling a trajectory in directionally drilling a wellbore within a formation associated with the formation model using the well plan.

Abstract: The present disclosure teaches a UV dosimeter comprising a UV-sensitive layer and a barrier that protects the UV-sensitive layer. The barrier is permeable to oxygen but impermeable to water and, thus, protects the UV-sensitive layer from water while allowing exposure of the UV-sensitive layer to oxygen. The UV-sensitive layer is accessible to both UV radiation and visible light. The UV-sensitive layer comprises a mixture of a semiconductor material, a UV-oxidizable dye, a sacrificial electron donor, and a matrix material. The semiconductor material has a band gap that corresponds to photon energy of the UV radiation. The dye has both an oxidation state and a reduction state. The oxidation state of the dye is visibly distinguishable from the reduction state of the dye. The sacrificial electron donor oxidizes when exposed to UV radiation. The matrix provides structural integrity to the mixture.

Abstract: Provided herein are neutron-based detection systems and methods that provide, for example, high throughput analysis of elemental analysis of scrap materials. Such systems and methods find use for the commercial-scale evaluation of bulk process materials where hazardous or otherwise undesirable materials or high value materials may be interspersed with the primary process material. In certain embodiments, the system is used to detect and potentially remove unexploded ordinance (UXO) from a conveyor of demilitarized shell casings being recycled by detecting the presence of nitrogen and other elements present in the UXO. In other embodiments, the system detects and removes unwanted or highly valuable materials from a stream of scrap material.

Abstract: A detection element includes an exposed electrode on the first surface of an insulating substrate, the exposed electrode including first exposed electrode, second exposed electrode, third exposed electrode, and fourth exposed electrode provided; a first electrode pattern provided on a side opposite to the first surface, the first electrode pattern including a pattern connected to the first exposed electrode and the second exposed electrode, a pattern connected to the third exposed electrode and the fourth exposed electrode, a second electrode pattern having a first exposed portion and a pattern provided along the second direction, and a third electrode pattern having a second exposed portion and a pattern provided along the third direction, provided so as to sandwich the third electrode pattern between the first electrode pattern and the second electrode pattern.

Abstract: In order to achieve improved dose control, a device for irradiating an object having an optically observable property is provided. The device includes an applicator for irradiating the object, and a detector system that is configured to capture light being emitted from an irradiated region and, based thereon, to generate a detector signal. A processor unit is configured to calculate a value for the property based thereon and, based on the calculated value, to determine a dose for the irradiation.