Abstract: A radiation detector may include a scintillator, a light source, and a sensor. The scintillator may include various scintillation materials capable of converting non-visible radiation (incoming radiation) into visible light. The sensor may be placed in adjacent or in close proximity to the scintillator, such that any converted visible light may be detected or measured by the sensor. The light source may be placed in adjacent or in close proximity to the scintillator, such that light from the light source may interact with defects in the scintillator to minimize interference on the conversion of non-visible radiation into visible light caused by the defects.

Abstract: An X-ray detector includes a substrate, a plurality of pixel electrodes on the substrate, a photoconductor covering the plurality of pixel electrodes, or a common electrode on the photoconductor. The photoconductor includes at least two photoconductor layers. The photoconductor may also include a current resistance layers disposed between the at least two photoconductor layers. The current resistance layer is configured to reduce current flow between the at least two photoconductor layers.

Abstract: A terahertz wave detection device which includes an absorption portion which absorbs a terahertz wave and generates heat and a conversion portion which converts the heat generated by the absorption portion into an electric signal, wherein the absorption portion includes a dielectric layer, a plurality of metal structures which are provided on one surface of the dielectric layer and are arranged to be separated from one another by an interval having a predetermined length; and a metal layer which is provided on the other surface of the dielectric layer, and wherein the interval is shorter than a wavelength of the terahertz wave which is absorbed by the absorption portion.

Abstract: Systems and methods for a positron emission tomography (PET) kit are described. A PET detector kit may include a gantry, a plurality of PET detector modules, and an event processing device. A PET detector module may include a housing, a crystal, a light detector, and a communication component. The housing may include at least one connective element configured to removably and adjustably couple the PET detector module to the gantry. The crystal may be located within the housing. The light detector may be configured to detect light emitted by the crystal. The communication component may be configured to communicate data from the at least one light detector to an event processing device. The event processing device may receive data from the plurality of PET detector modules and may cause the one or more processors to determine coincidence events based on the received data.

Abstract: This disclosure is directed to devices, integrated circuits, and methods for sensing radiation. In one example, a device includes an oscillator, configured to deliver a signal via an output at intervals defined by an oscillation frequency, and a counter, connected to the output of the oscillator and configured to count a number of times the comparator delivers the output signal. The oscillator includes a radiation-sensitive cell that applies a resistance. The resistance of the radiation-sensitive cell is configured to vary in response to incident radiation, wherein the oscillation frequency varies based at least in part on the resistance of the radiation-sensitive cell.

Abstract: A neutron detector includes an anode and a cathode. The cathode circumscribes the anode and has a plurality of planar segments facing the anode. In one embodiment, the neutron detector is part of an array of neutron detectors.

Abstract: A representative positron emission tomography (PET) system includes a positron emission tomography detector having one or more silicon photomultipliers that output silicon photomultipliers signals. The PET system further includes a calibration system that is electrically coupled to the silicon photomultipliers. The calibration system determines a single photoelectron response of the silicon photomultipliers signals and adjusts a gain of the silicon photomultipliers based on the single photoelectron response.

Abstract: A system for detecting signal components of light induced by multiple excitation sources including: a flow channel including at least two spatially separated optical interrogation zones; a non-modulating excitation source that directs a light beam of a first wavelength at a near constant intensity onto a first of the optical interrogation zones; a modulating excitation source that directs a light beam of a second wavelength with an intensity modulated over time at a modulating frequency onto a second of the optical interrogation zones; a detector subsystem comprising a set of detectors configured to detect light emitted from particles flowing through the at least two optical interrogation zones and to convert the detected light into a total electrical signal; and a processor that determines signal components from the light detected from each of the optical interrogation zones.

Abstract: Instrument and method for detecting pesticides and other analytes. A sample to be tested is mounted on a cassette and inserted into a housing which is substantially impervious to light, and light from a source within the housing is directed toward the sample to induce fluorescent emission from analyte on the sample. Fluorescent emissions from the sample are monitored with a detector within the housing to detect emissions having a spectral content characteristic of the analyte to be detected. Data from the detector is processed, and information based on the processed data is displayed. In some embodiments, the instrument is calibrated with data from a reference sample of known concentration or density. The detector measures the analyte in units of mass per unit area, and in some embodiments the mass per unit area is converted to units of concentration or density of the analyte in the sample.

Abstract: An infrared detector includes a detecting element, a first electrode, a second electrode, and a covering structure. The detecting element defines an absorbing part and a non-absorbing part. The detecting element includes a first end and a second end opposite with the first end. The first end is disposed in the absorbing part. The second end is disposed in the non-absorbing part. The first electrode is electrically connected with the first end. The second electrode is electrically connected with the second end. The covering structure covers the non-absorbing part. The detecting element further includes a carbon nanotube layer. The carbon nanotube layer includes a plurality of carbon nanotubes disposed uniformly.

Abstract: An apparatus for detecting a radiation source includes a collimator configured to have an optical path for converging radiation formed therein, a radiation sensor provided at the end of the optical path and configured to measure the intensity of radiation incident on the optical path, a rotation driving unit connected to the collimator and configured to rotate the collimator up and down and left and right, movement means configured to move the collimator and the rotation driving unit along the surface of land, a position tracking unit provided within the collimator and configured to track a current position and to measure a distance moved by the movement means, and a radiation position information processing unit configured to obtain direction information and information about the distance to the radiation source based on a maximum intensity of radiation, measured by the radiation sensor, and the movement distance.

Abstract: The invention relates to a sensor having a filter arrangement, downstream of which there is arranged a detector arrangement, and an evaluating device connected to the detector arrangement. The filter arrangement has at least a first filter, the suspect filter, and at least one second filter, the reference filter(s). The first filter is configured as a band pass filter allowing the passage of a first predetermined band, the suspect band. The at least one second filter is configured as a band pass filter allowing the passage of a second predetermined band(s), the reference band(s). The detector arrangement has at least one detector associated with at least one of the filters. The band passes reference filters are distributed above and below the band pass of the suspect filter. The sensor with advantage could be utilized within the IR band, and could advantageously be used to detect CO2.

Abstract: A method for wavelength-resolving and high spatial resolution fluorescence microscopy in which fluorescence labels in a sample are repeatedly excited to emit fluorescence radiation and frames including images of isolated labels are produced with a microscope. The positions of the images of the isolated fluorescing labels are localized with a localization precision exceeding the optical resolution of the imaging beam path of the microscope. The imaging beam path of the microscope has a diffractive element which, during the imaging, diffracts the image of the sample comprising the isolated fluorescing labels into a first diffraction order so that each frame contains the first diffraction order images of the isolated fluorescing labels. A parameter of the first diffraction order images of the isolated fluorescing labels is evaluated and an indication of the wavelength of the isolated fluorescing labels is derived from this evaluated parameter.

Abstract: The present invention provides a radiation detector, a radiographic imaging device, a radiographic imaging system and a line capacitance adjusting method that may suppress image irregularities from occurring in the obtained radiographic images. Namely, the line capacitance difference between each of plural signal lines is reduced by adjusting elements (capacitors) connected to at least one of the plural signal lines.

Abstract: The invention relates to a low interference sensor head for a radiation detector and a radiation detector containing said low interference sensor head. Preferably, the radiation detector according to the invention is an X-ray detector. The invention further relates to the use of the low interference sensor head or the radiation detector, in particular of the X-ray detector for radiation analysis, in particular for (energy dispersive) X-ray analysis in microscopy using optics for charged particles.

Abstract: The infrared detecting element has a first base plate that has a first front surface, a first back surface, a first recessed portion, and an infrared detecting section for detecting infrared rays provided in an area of the first front surface that opposes the first recessed portion; a second base plate that has a second front surface, a second back surface on the opposite side of the second front surface, and a second recessed portion provided in an area of the second back surface that faces the first recessed portion; and an adhesion film that bonds the first back surface and the second back surface, wherein a second outer peripheral portion where the second recessed portion intersects with the second back surface surrounds a first outer peripheral portion where the first recessed portion intersects with the first back surface.

Abstract: In a device for detecting thermal radiation, at least one membrane is provided on which at least one thermal detector element is mounted for the conversion of the thermal radiation into an electric signal and at least one circuit support for carrying the membrane and for carrying at least one readout circuit for reading out the electrical signal, the detector element and the readout circuit being connected together electrically by an electric contact which passes through the membrane. In addition, a method of producing the device with the following method steps is provided: a) provision of the membrane with the detector element and of at least one electrical through-connection and provision of the circuit support and b) bringing together the membrane and the circuit support in such a manner that the detector element and the readout circuit are connected together electrically by an electrical contact passing through the membrane.

Abstract: A detector for detecting ionizing radiation comprises a scintillator 10 selected to emit light in response to incidence thereon of radiation to be detected, at least one detector 16 for detecting said emitted light, and at least one optical waveguide 12 for transmitting said emitted light to said detector 16. The optical waveguide typically comprises a flexible solid or hollow fiber that can be incorporated into a flexible mat or into a fiber-reinforced structure, so that the detector is integrated therewith.

Abstract: The present invention relates to display devices, and more particularly to an optical sensing frame in which an infrared sensor module is fastened to a case top with a bracket to secure an assembly margin and prevent the infrared sensor module from mismatching with a liquid crystal display module by relative movement; and a display device therewith, the optical sensing frame includes a case top having a frame shaped upper side, and sides bent and extended from four sides of the upper side perpendicular thereto, first to third brackets fastened to an inside of the upper side of the case top at three corners thereof respectively, and an infrared sensor module placed in each of the first to third brackets.

Abstract: Electronic devices may include time-of-flight image pixels. A time-of-flight image pixel may include first and second charge storage regions coupled to a photosensor and a transfer transistor with a gate terminal coupled to the first storage region. An electronic device may further include a light pulse emitter configured to emit pulses of light to be reflected by objects in a scene. Reflected portions of the emitted pulses of light may be captured along with background light by the time-of-flight image pixels. Time-of-flight image pixels may be configured sense the time-of-flight of the reflected portions of the emitted pulses. The electronic device may include processing circuitry configured to use the sensed time-of-flight of the reflected portions to generate depth images of a scene. Depth images may include depth-image pixel values that contain information corresponding to the distance of the objects in the scene from the electronic device.