Abstract: A radioactive gas monitoring device includes a sample chamber into which a sampled gas is introduced; a plastic scintillation detector outputting first detection signal pulses; an inorganic crystal scintillation detector outputting second detection signal pulses; a first measurement unit calculating a first count rate from the first detection signal pulses to output the first count rate, and issuing a first alert when the first count rate becomes higher than a first preset level and issuing a second alert when the first count rate becomes higher than a second preset level higher than the first preset level; and a second measurement unit calculating a second count rate from the second detection signal pulses to output the second count rate, and issuing a third alert when the second count rate becomes higher than a third preset level.

Abstract: A bulk semiconducting scintillator device, including: a Li-containing semiconductor compound of general composition Li-III-VI2, wherein III is a Group III element and VI is a Group VI element; wherein the Li-containing semiconductor compound is used in one or more of a first mode and a second mode, wherein: in the first mode, the Li-containing semiconductor compound is coupled to an electrical circuit under bias operable for measuring electron-hole pairs in the Li-containing semiconductor compound in the presence of neutrons and the Li-containing semiconductor compound is also coupled to current detection electronics operable for detecting a corresponding current in the Li-containing semiconductor compound; and, in the second mode, the Li-containing semiconductor compound is coupled to a photodetector operable for detecting photons generated in the Li-containing semiconductor compound in the presence of the neutrons.

Abstract: A radiation imaging apparatus includes pixels arranged to form an array, sensors including conversion elements dispersed in the array to monitor radiation, a processing circuit for processing signals from the sensors, first signal lines for transmitting a signal from at least one of the sensors to the processing circuit, and second signal lines extending in a direction parallel to the first signal lines and not directly connected to the pixels and the conversion elements or connected to at least one of the pixels and at least one of the sensors. The processing circuit determines a value of a signal generated by each sensor based on a difference between a value of a signal appearing on the first signal line and a value of a signal appearing on the second signal line.

Abstract: The invention relates to a method and a device (1) for determining a concentration (c) of a fluorescent substance in a medium, wherein an excitation radiation having an excitation wavelength (?ex) is radiated through the medium having the fluorescent substance so that the fluorescent substance is excited in such a way that the fluorescent substance emits a fluorescence radiation having a fluorescence wavelength (?em), wherein the intensity of the fluorescence (Ifluor) is measured, from which the concentration (c) of the fluorescent substance in the medium is determined, wherein additionally the intensity (Itrans,ex) of a transmitted portion of the excitation radiation is measured, wherein the concentration (c) of the fluorescent substance is determined from the intensity of the transmitted portion of the excitation radiation (Itrans,ex) and the intensity of the fluorescence (Ifluor).

Abstract: A pulsed UV laser assembly includes a partial reflector or beam splitter that divides each fundamental pulse into two sub-pulses and directs one sub-pulse to one end of a Bragg grating and the other pulse to the other end of the Bragg grating (or another Bragg grating) such that both sub-pulses are stretched and receive opposing (positive and negative) frequency chirps. The two stretched sub-pulses are combined to generate sum frequency light having a narrower bandwidth than could be obtained by second-harmonic generation directly from the fundamental. UV wavelengths may be generated directly from the sum frequency light or from a harmonic conversion scheme incorporating the sum frequency light. The UV laser may further incorporate other bandwidth reducing schemes. The pulsed UV laser may be used in an inspection or metrology system.

Abstract: A terahertz wave temporal waveform acquisition apparatus includes a light source, a branch part, a terahertz wave generation element, a terahertz wave detection element, a delay providing medium, a temperature adjustment unit, and an analysis unit. The delay providing medium is disposed on an optical path of a terahertz wave from the terahertz wave generation element to the terahertz wave detection element, is formed of a material of which a refractive index for the terahertz wave depends on the temperature, and provides a delay according to the temperature to the terahertz wave.

Abstract: Preprocessing is conducted on a unipolar pulse output from a photomultiplier tube, to thereby generate a bipolar signal (bipolar pulse). In the bipolar signal, the falling waveform portion (back slope) of the initial peak waveform is steep, and also cuts across the baseline, whereby it is possible to accurately identify the falling point as the zero crossing point. The accuracy of identification of the pulse width “t” can be improved thereby. In addition to the pulse width, further reference may be made to the crest value of the unipolar pulse, the crest value of the bipolar signal, and the like, when determining line type.

Abstract: A microscope, in particular a confocal microscope, has one or more lasers for generating an illumination light for a sample and has a detection device for detected signals from the sample. The detection device includes multiple adjustable spectral detection channels for the detection of predefinable different wavelength regions, and is configured and refined in the interest of particularly versatile utilization in consideration of a wide variety of phenomena, with particularly good separation of the phenomena in the context of investigation, in such a way that multiple temporal detection windows are respectively settable for the spectral detection channels.

Abstract: A thermal sensor includes an array of pixels, each having a membrane mounted on legs over a reflector, forming a Fabry-Pérot cavity. Each membrane includes an infrared (IR) absorbing material that defines multiple spaced-apart openings separated by micron-level distances that decrease thermal capacity and increase IR absorption of the membrane. Regular pitch distances between adjacent openings provides narrowband IR absorption, with pitch distances below 7.1 ?m facilitating the detection of IR radiation wavelengths below 7.5 ?m. Multispectral thermal imaging is achieved by arranging the pixels in repeated groups (superpixels), where each superpixel detects the same set of IR radiation wavelengths. Thermal imaging devices include thermal sensors, IR lenses and device control circuitry arranged in a camera-like manner.

Abstract: An imaging system is provided including a plurality of detector units and a controller. The plurality of detector units are distributed about a bore. The bore is configured to accept an object to be imaged, and the detector units are radially articulable within the bore. The controller is operably coupled to the plurality of detector units and configured to control the positioning of the detector units. The controller is configured to position an external group of the plurality of detector units at a predetermined intermediate position corresponding to a ring having a radius corresponding to a total number of detector units, and to position an internal group of the plurality of detector units radially inside the ring.

Abstract: A multi-spectral detection device is provided that includes a housing, a bezel spacer, a microphone, an end cap and electro-optical sensors mounted to the end cap. The housing has an inner chamber that holds sensor components. The bezel spacer has a first end and an opposed, second end. The first end of the bezel spacer extends from a first end of the housing. The bezel spacer has a central bezel passage leading to the inner chamber of the housing. The bezel spacer further has at least four side walls. Each side wall is positioned 90 degrees away from an adjacent side wall. A microphone is coupled to each side wall of the bezel spacer in such a manner that each microphone is faced 90 degrees with respect to an adjacent microphone to form a compact acoustic array. The end cap is coupled to the second end of the bezel spacer and the electro-optical sensors are mounted to the end cap.

Abstract: Described is a method and system that facilitates triage of thousands to millions of potential patients within a relatively short period of time by scanning of a substrate of a designated card issued to a victim. The method and the system comprise a plurality of noninvasive self-testing test devices located at a plurality of remote peripheral self-testing sites, and each one of the plurality of noninvasive self-testing test devices facilitates self-testing of the substrate of the designated card. Each of the plurality of noninvasive self-testing test devices provides test results of the scan of the substrate of the designated card, and the potential patients are identified, then subsequently screened and triaged based upon the test results of the scan of the substrate of the designated card.

Abstract: An electrokinetic pump can be used to deliver calibrant (“lock mass”) ions to a mass spectrometer for calibration of a mass spectrometry system. Electrokinetically controlled calibrant delivery can help to eliminate the need for the more cumbersome mechanisms that are often used for ion delivery. In addition, electrokinetically controlled calibrant delivery can provide for a more user-friendly system in which a calibrant solution can be packaged into a disposable cartridge. Furthermore, when implemented in a microfluidic format, electrokinetically controlled calibrant delivery can be coupled with an electrokinetically controlled separation system, such as capillary electrophoresis (CE), to allow efficient solid-state switching between analytical and calibrant sprays.

Abstract: Provided is a polyhedral-shaped radiation counter which measures a radiation level of a radioactive material, in which sensor modules configured to measure the radiation level are disposed at vertexes of a polyhedral shape, respectively, and the sensor modules are connected to each other by rod-shaped frame members disposed in edge positions of the polyhedral shape and face parts of the polyhedral shape form an open space.

Abstract: A device for detecting neutrons includes at least one common module, where a number of solid state sensors are assembled. The sensors are configured in the module side by side and/or stacked in a layered structure. At least one of the sensors includes neutron reactive material as a neutron converter for interacting with neutrons incident thereon to be detected and to release ionizing radiation reaction products responsive to interactions with the incident neutrons. The neutron converters are coupled with corresponding semiconductor elements so that the semiconductor elements interact with the ionizing radiation reaction products for providing electrical charges in proportion to the energy of the ionizing radiation reaction products. The semiconductor elements are configured with electrodes for providing charge collection areas for collecting the electrical charges and to provide electrically readable signals proportional to the collected electrical charges.

Abstract: A focal plane array having: a plurality of detectors; a plurality of unit cell sections, each section being fed by charge produced by corresponding detector for producing a sequence of frames; and a plurality of sets of storage sections, each section being coupled to a corresponding one of the unit cells. Each set of storage sections includes a plurality of storage units for sequentially storing the frames. A region of interest selector section examines the frames of the plurality of unit cells, to detect at least one of the frames having a predetermined characteristic. A processor: (i) identifies a sub-set of the plurality of unit cells proximate the detected unit cells having the predetermined characteristic to establish a region of interest; and (ii) sequentially reads the plurality of storage units in the storage sections coupled to the sub-set of unit cells in the established region of interest.

Abstract: This apparatus and method improves the way metal and other objects will be sterilized, disinfected and preserved by utilizing both electromagnetic radiation (UV light in particular) to kill anaerobic pathogens and oxygen depletion to kill aerobic pathogens. The removal of the presence of oxygen further increases the useful lifespan of the treated object by preventing corrosion in general and oxidation in particular.

Abstract: In accordance with an example embodiment a method, apparatus and computer program product are provided. The method comprises filtering incident light by an IR cut-off filter to generate filtered light. The IR cut-off filter comprises a plurality of pixels with pass-band characteristics for visible light wavelengths and is configured to perform stop-band attenuation of near infrared (NIR) wavelengths. The stop-band attenuation is configured to vary based on spatial location of pixels within the IR cut-off filter. The filtered light received from the IR cut-off filter is sensed by the image sensor to generate sensed light. A baseband signal and a modulated NIR signal are determined by performing transformation of the sensed light. A NIR spectrum associated with the incident light is determined by demodulating the modulated NIR signal. A visible spectrum associated with the incident light is determined based on the NIR spectrum and the baseband signal.

Abstract: An imaging device comprises a sensor of surface area of at least 10 cm2 and comprising: an image zone produced on a single substrate and comprising a group of pixels disposed in rows and columns, the number of pixels per column not being uniform for all the columns of pixels, each pixel collecting electric charges generated by a photosensitive element, row conductors linking the pixels row by row, column conductors linking the pixels column by column, row addressing blocks linked to the row conductors to address each row of pixels individually, and column reading blocks linked to the column conductors to read the electric charges collected by the pixels of the row selected by the row addressing blocks, the column reading blocks being situated at the periphery of the image zone; the row addressing blocks and the column reading blocks being produced on the same substrate as the image zone.

Abstract: A fluorescence observation method of the present invention for detecting plural types of fluorescence emitted from two or more kinds of fluorescent molecules includes: subjecting each of the two or more kinds of fluorescent molecules to multi-photon excitation by exciting light having an exciting wavelength equal to or shorter than 700 nm in a visible region, to generate fluorescence upon making use of an absorption wavelength band in a deep ultraviolet region of each of the two or more kinds of fluorescent molecules; and simultaneously detecting plural types of fluorescence generated on a shorter-wavelength side or on both of the shorter-wavelength side and a longer-wavelength side of the exciting wavelength of the exciting light.