Abstract: Disclosed is a low-cost, portable photo thermal spectroscopy (PTS) reader for use in detecting the presence of diseases in the bodily fluid of affected patients. The PTS reader is designed to be durable, easy to use and provide readings from the Lateral Flow Assay (LFA) with rapid results. Also provided are methods of use.

Abstract: A method for calibrating an ionizing radiation detector, with the aim of determining a correction factor in order to establish an amplitude-energy correspondence. The invention first relates to a method for calibrating a device for detecting ionizing radiation, the detector comprising a semiconductor or scintillator detection material capable of generating a signal S of amplitude A upon interaction between ionizing radiation and the detection material, the method including the determination of a weighting factor at the amplitude A.

Abstract: An imaging system includes an array of photodetectors and electronic circuitry associated with the photodetectors to read intensity values from the photodetectors. The electronic circuitry can include an integrator with an integrator capacitor having a nominal capacitance, wherein a gain of the electronic circuitry associated with a photodetector can depend at least in part on the actual capacitance of the integrator capacitor, the actual capacitance differing from the nominal capacitance. The imaging system can be configured to determine a gain factor that depends at least in part on the actual capacitance and/or a signal voltage input to the integrator. The imaging system can be configured to apply the gain factor based at least in part on the actual capacitance of the integrator capacitor calculated. The imaging system can be a thermal imaging system and may include an infrared camera core.

Abstract: A neutron spectrometer is described. The neutron detector comprises a conversion layer provided on an outer surface of a spherical core of neutron-moderating material. The conversion layer comprises a neutron absorbing material and a phosphor material. The spherical core is arranged to receive photons emitted from the phosphor material of the conversion layer. The neutron detector further comprises a photodetector optically coupled to the spherical core and arranged to detect the photons emitted from the conversion layer.

Abstract: A system and method for a higher speed auto-correcting temperature measurement in a system using a fiber optic distributed sensor.

Abstract: The present invention relates to an absorption spectroscopy device, comprising a light cavity vessel (1) whose inner wall is at least partially coated with a light reflective layer (2), wherein said light reflective layer is a distributed Bragg reflector or is composed of stainless steel or aluminium; a photo-detector; and a light source, wherein said light source is capable of emitting light radiation which passes through said light cavity vessel, wherein said light cavity vessel is capable of reflecting the emitted radiation and wherein said photo-detector is capable of detecting at least a portion of the emitted light.

Abstract: A detector for detecting a single x-ray photon with high temporal resolution and high efficiency includes a semiconductor substrate, the semiconductor substrate including element(s) from each of Groups III and V of the Periodic Table of Elements, and pixels on the substrate. Each pixel includes a semiconductor transistor including an epitaxial layer having element(s) from each of Groups III and V of the Periodic Table of Elements, an anode electrically connected to a gate of the semiconductor transistor, and a cathode electrically connected to a drain of the semiconductor transistor. Photon(s) are caused to impinge the single-photon detector along a y-direction (long side of pixel) to provide adequate stopping power, and electron-hole pairs generated by the photon(s) are collected along an x-direction or z-direction (short sides of pixel) to provide short transit time. Detectors form an array of pixels for x-ray imaging with temporal resolution of single photons.

Abstract: A method is provided of obtaining a vapor phase spectrum of a compound. The method comprises providing an isolated condensed phase sample of the compound, vaporizing the sample and supplying the vapor to an absorption cell of a spectrometer. A rate at which vapor enters the absorption cell is determined and a steady state concentration of vapor in the absorption cell is established. The spectrum of the vapor is then measured.

Abstract: A device for determining a concentration of at least one gas in a sample gas flow by infrared absorption spectroscopy. The device includes an infrared radiation source which emits a radiation which is conducted through an analysis cell, a feed line, the sample gas flow which is conducted into and out of the analysis cell via the feed line, a detector which measures an absorption spectrum arising in the analysis cell, a suction jet pump which includes a propellant gas connection, and a propellant gas line which extends to the propellant gas connection of the suction jet pump. The suction jet pump is arranged downstream of the analysis cell and feeds the sample gas flow through the analysis cell via the feed line. The propellant gas line includes a regulating valve which regulates a propellant pressure in the propellant gas line.

Abstract: Methods, systems, devices, and products for estimating a parameter of interest of a downhole fluid in a borehole intersecting an earth formation. Apparatus include evanescent wave measurement instruments, which may include a substrate configured for contact with a downhole fluid such that at least a portion of the substrate is immersed in the downhole fluid; a waveguide formed in an interior of the substrate and having a configuration geometrically configured to generate an interaction between the downhole fluid and an evanescent wave arising from electromagnetic energy propagating in a segment of the waveguide; and a detector configured to generate measurement information indicative of the downhole fluid in response to electromagnetic signals received from the waveguide responsive to the interaction. The interaction may result in absorption of at least a portion of the electromagnetic energy propagating in the waveguide. The waveguide may be written in the substrate using laser pulses.

Abstract: A probe includes a transmission line support substrate, a probe tip and a probe tip support substrate. The transmission line support substrate supports a transmission line through which a terahertz wave is transmitted. The probe tip transmits the terahertz wave, and is contact with an object to be measured. The probe tip support substrate supports the probe tip. The probe tip support substrate is detachable from the transmission line support substrate.

Abstract: Methods and systems for feed-forward of multi-layer and multi-process information using XPS and XRF technolgies are disclosed. In an example, a method of thin film characterization includes measuring first XPS and XRF intensity signals for a sample having a first layer above a substrate. A thickness of the first layer is determined based on the first XPS and XRF intensity signals. The information for the first layer and for the substrate is combined to estimate an effective substrate. Second XPS and XRF intensity signals are measured for a sample having a second layer above the first layer above the substrate. The method also involves determining a thickness of the second layer based on the second XPS and XRF intensity signals, the thickness accounting for the effective substrate.

Abstract: A downhole system comprises a main sensor, such as a gamma sensor, and a backup sensor. The backup sensor may be of a different type from the main sensor. In some embodiments the backup sensor is a high reliability sensor that may have a different sensitivity from the main sensor. The system operates both the main and backup sensors and generates calibration data for the backup sensor. If the main sensor fails the calibration data may be applied to process data from the backup sensor to yield an estimate of the data that the main sensor would have yielded if it had remained operational. The calibration data may compensate for temperature variations and/or temporal drift, for example.

Abstract: In order to accurately detect a subject to be detected and reduce manufacturing or maintenance costs, this optical detection device determines whether there is a subject to be detected by determining a correction coefficient for correcting data from an image captured by a capturing sensor through a filter unit with an image data estimation value from when an image is captured without the filter unit, and comparing an image data estimation value obtained through correction using the correction coefficient from the image data with captured data obtained by capturing a detection area in a state where the filter unit is not in front of the capturing sensor.

Abstract: A scintillator includes CsBrxI(1-x) doped with Europium (CsBrxI(1-x):Eu) wherein x<0.5, and is obtained by annealing CsBrxI(1-x):Eu material at a temperature from 50° C. to 280° C. The EPR spectrum of the obtained scintillator measured at room temperature at a frequency of 34 GHz shows a maximum signal height at a magnetic field of 1200 mT, and the signal height at 1090 mT and 1140 mT does not exceed 40%, wherein the normalized signal height percentage at 1200 mT is calculated to be 100%. The scintillator is useful in a high energy radiation detection and radiography imaging apparatus.

Abstract: A method and apparatus for remotely detecting, locating, and identifying chemicals and chemical compounds through optically opaque materials. Electromagnetic radiation in the Terahertz range emitted from an antenna array is modulated to excite target molecules. The apparatus then stops the excitation energy and the molecules emit an electromagnetic signature detectable by the device at standoff distances.

Abstract: A multi-focal selective illumination microscopy (SIM) system for generating multi-focal patterns of a sample is disclosed. The multi-focal SIM system performs a focusing, scaling and summing operation on each multi-focal pattern in a sequence of multi-focal patterns that completely scan the sample to produce a high resolution composite image.

Abstract: A system and method for the detection of foreign object debris materials or defects on and/or under a surface (e.g., outer ply) of a composite part being formed by a composite layup machine. A gantry moves over the composite part along a predetermined length thereof. A thermal excitation source fixed to the gantry directs infrared radiation across the width of the surface of the composite part. A infrared camera fixed to the gantry a predetermined distance away from the thermal excitation source scans the surface as the gantry moves to detect and output scan information thereof. A controller is coupled to the thermal excitation source and to the infrared camera. The controller processes the sequence of infrared images to identify a foreign object debris material or defect located on and/or under the surface.

Abstract: An optical nondestructive testing method includes: a laser emitting step involving emitting a heating laser from a laser output device such that the intensity of the heating laser applied to a measurement point changes sinusoidally; a laser intensity measuring step involving measuring the intensity of the heating laser by a phase difference detector; an infrared radiation intensity measuring step involving measuring, by the phase difference detector, the intensity of infrared radiation radiating from the measurement point; a phase difference measuring step involving determining, by the phase difference detector, a phase difference between the intensity of the heating laser and the intensity of the infrared radiation, and outputting the phase difference determined to a determiner from the phase difference detector; and a connection area calculating step involving determining, by the determiner, a connection area in accordance with the phase difference and phase difference-connection area correlation informatio

Abstract: A radiation detector according to an embodiment includes a plurality of detector modules, a first and second radiation shield, and first supporter. The first radiation shield is provided in a first detector module and is arranged on a side opposite to a surface of a first detector pack of a first detector module on which radiation is incident. The second radiation shield is arranged to intersect with a path of radiation that passes through between a first detector pack and a second detector pack of a second detector module that is arranged adjacently to the first detector module. The first supporter supports the first radiation shield ouch that at least a part of the first radiation shield overlaps the second radiation shield on the path of radiation.