Abstract: A method of operating an electro-optic sensor includes disposing at least a portion of the electro-optic sensor in a liquid chamber, providing light from a light source of the electro-optic sensor at a first intensity, driving a light detector of the electro-optic sensor at a first sensitivity level, receiving, via the light detector, a first amount of light from the light source; determining whether liquid is present in the liquid chamber according to the first amount of light, providing light from the light source at a second intensity, driving the light detector at a second sensitivity level, receiving, via the light detector, a second amount of light from the light source, and/or confirming whether liquid is present in the liquid chamber according to the second amount of light. The first sensitivity level may be different from the second sensitivity level.

Abstract: A breathing air compressor having an inlet air ultraviolet C light radiation emitter and viral and bacterial filtration system for air introduced into the air compressor. The viral and bacterial filtration system includes a cylindrical housing that includes a UVC radiation emitter mounted in a flow-through UVC radiation chamber, an inlet air particulate filter, and a flowmeter for measuring the volume and rate of flow of air to destroy viruses and bacteria present in any air flowing through the UVC chamber that is input air to an air compressor. The air compressor is typically used for generating breathing air for persons such as firemen and SCUBA divers. A controller and monitor unit is connected to the UVC radiation emitter and the flowmeter to shut down the air compressor to prevent air starvation.

Abstract: The present invention allows a sample urine to enter an entry hole formed on a shell and to flow through a flow pathway. A part of the sample urine remains in a groove of the flow pathway as collected urine. A measuring module in the shell includes a first side and a second side. The first side includes a light emitting unit and a light sensing unit. The second side includes a lens. The lens is mounted in the groove. The light emitting unit generates a detection beam. The detection beam passes the lens, the collected urine, a reflective mirror, the lens again, and into the light sensing unit. The light sensing unit receives the detection beam and generates a sensing signal. The processing unit generates a detection result signal according to the sensing signal, and a display unit immediately displays a test result of the sample urine.

Abstract: A method can be provided for analyzing a fluidic sample with dispersed particles. Using such exemplary method, it is possible to irradiate the sample with light, so that the photons of the light transfer momentum to the particles. It is also possible to measure at least one property of the particles that is altered by the momentum transfer. The light can be a propagating beam with an intensity distribution that has gradients pointing to more than one point within each plane normal to the direction of propagation, while varying steadily along the direction of propagation, and/or a 3D vortex trap beam that is configured to confine the particles in a three-dimensional volume by means of high-intensity gradients. An exemplary device can also be provided (e.g., for performing the method), comprising a chamber for holding a sample that is elongate along an axis and configured to pass a beam of light along the axis.

Abstract: The present invention relates a spectrometer (1) having a lamp (2) that extends in substantially tubular fashion for the purposes of forming a light emission zone (3) that extends in the direction of the tubular extent and between two points to the end of emitting a first light beam (L1) and a second light beam (L2) that have the same origin on the light emission zone (3), a sample container (6) that is arranged in the beam path of the first light beam (L1) for receiving a sample to be measured, a first detection apparatus (D1) that is arranged in the direction of the first light beam (L1) for quantitative and/or qualitative determination of the sample to be measured in the sample container (6) on the basis of an interaction between the sample to be measured and the first light beam (L1), and a second detection apparatus (D2) that is arranged in the direction of the second light beam (L2) for the purposes of referencing the quantitative and/are qualitative determination, on the basis of the second light beam

Abstract: A gas concentration measurement device is disclosed. The gas concentration measurement device comprises: a light source unit for emitting light into the gas concentration measurement device; an incident unit for refracting the light emitted from the light source unit; a first reflection unit and a second reflection unit for reflecting the incident light; a rotatable third reflection unit; and a light receiving unit for measuring the amount of incident light, wherein the light incident from the incident unit is reflected between the first reflection unit and the second reflection unit through the third reflection unit, and the light is incident on the light receiving unit by allowing an optical path thereof to be changed according to the rotation of the third reflection unit.

Abstract: A system for scoring darts that includes multiple cameras placed substantially parallel to the surface of a dartboard. With a field of view extending across the board, the cameras can be configured to capture images of darts projecting outwardly from the board as they are thrown, and the system can use this image data to calculate the location of each dart, and the corresponding score. Various algorithms may be used to orient the system and calibrate the system to account for irregularities in the images captured by the cameras to accurately determine the location. Proper scoring may be achieved for a variety of dartboards with different patterns of scoring regions based on game rules and corresponding board configurations maintained by the system.

Abstract: A communication device is provided that estimates one or more disturbance values associated with one or more components of the communication device, and adjusts the communication device to change a received power of the output signal. The communication device includes a transmitter having a seed laser configured to provide an amount of bandwidth for an output signal, an Erbium-doped fiber amplifier (EDFA) configured to increase an amplitude of the output signal, and a single mode variable optical attenuator (SMVOA) configured to decrease the amplitude of the output signal.

Abstract: Provided is a residual toxicant detection system and a residual toxicant detection method, the residual toxicant detection method including: allowing an aqueous solution containing a residual toxicant to flow into a detection portion including a cavity; providing at a side of the cavity a light containing a specific wavelength range to react with the residual toxicant; receiving the light that passes through the cavity on another side of the cavity, thereby generating a sensing signal; and calculating an amount of change in absorbance of the aqueous solution according to the sensing signal, wherein when the amount of change in absorbance is less than a threshold value, a detection count is accumulated, and when the accumulated detection count is greater than a predetermined value, a detection result is generated. Therefore, whether or not the residual toxicant on the object is cleaned can be determined easily and accurately.

Abstract: A computing system is designed for measuring the A2/O effluent total phosphorus based on data-driven method. Several related variables are obtained by analyzing the relationship between effluent total phosphorus and other process variables. In addition, a hardware platform is designed and built to further analysis sample information of each variable. Finally, the computing system for measuring total phosphorus in effluent is developed by combining the hardware and software as provided in implementations herein.

Abstract: The present invention relates to measuring hydroxyl in an atmosphere, including forwarding sunlight and ultraviolet light into a gas cell; switching between nitrogen gas only, or nitrogen gas and water vapor, into the gas cell; emitting ultraviolet rays into the cell which breaks down the water vapor into hydroxyl; and detecting a difference between two states, including 1) an OFF state where only nitrogen gas does not react to the ultraviolet light or the sunlight and there is no OH filter and the detector detects light that OH absorbs; and 2) an ON state where the water vapor is broken down by the ultraviolet rays to produce hydroxyl, and the gas cell acts as an OH filter and does not detect the light that OH absorbs; where a difference in signals measured by the detector in the two states is proportional to a column abundance of OH in earth atmosphere.

Abstract: A fluid sterilization device includes: a treatment flow passage in which a fluid subject to sterilization flows; a light source chamber that stores a light source for irradiating the fluid in the treatment flow passage with ultraviolet light; a window member that is provided between the treatment flow passage and the light source chamber and transmits ultraviolet light; and a pressure adjustment mechanism that adjusts a pressure in the light source chamber so as to reduce a difference between a pressure in the treatment flow passage and the pressure in the light source chamber.

Abstract: Provided are a spectrometer capable of more effectively reducing stray light and an incident light limiting member to be used for the spectrometer. At least a part of light not entering an effective area of a diffraction grating is blocked by being reflected by a mask plate provided between an incidence plate and the diffraction grating. Further, the light reflected by the mask plate is attenuated in a trap space. Thus, the light blocked by the mask plate does not reach the diffraction grating side and does not function as a stray light source, so that stray light can be more effectively reduced.

Abstract: There is provided a film forming apparatus for forming a silicon nitride film on a substrate by having a precursor gas containing silicon to react with a reaction gas containing nitrogen, including: a processing container configured to form a vacuum atmosphere; a substrate mounting part installed in the processing container; a precursor gas supply part configured to supply a precursor gas into the processing container; a reaction gas supply part configured to supply a reaction gas containing nitrogen into the processing container; and an ultraviolet irradiating part configured to excite the reaction gas before the reaction gas reacts with the precursor gas, wherein a substrate on the substrate mounting part is not irradiated with an ultraviolet ray emitted from the ultraviolet irradiating part.

Abstract: To show a highly accurate cell measurement method. A cell measurement method comprises: a step of staining a cultured target cell with a dye; a step of obtaining a first image and a second image which are transmission images for a first light and a second light to which the dye has different absorbance; a step of dividing each of the first image and the second image into a plurality of divided regions and comparing the first image and the second image for each of the divided regions so as to eliminate noises; and a step of integrating an indicator of a cell amount in each of the divided regions in the images from which the noises were eliminated so as to evaluate a target cell amount.

Abstract: A computer-implemented method for measuring gas concentration from a 2f signal in wavelength modulation spectroscopy is presented. The computer-implemented method includes emitting a beam of light from a laser to pass through a gas sample, calculating a gas measurement value from the gas sample via a trough distance calculator using a trough distance of a gas absorption line's 2f signal, calibrating the gas measurement value via a multi-point calibration process, and outputting the gas measurement value to a user interface of a computing device.

Abstract: The present disclosure relates to an apparatus or methodology for detecting one or more contaminants and/or measuring watering quality in a water supply system, which may be installed at any place chosen by a user so as to detect the one or more contaminants and/or measure the quality of water flowing through a pipe of the water supply system, such as tap water, water purifier, drinking water storage facility, or water intake facility. The present disclosure provides numerous benefits over the existing technology including convenience of handling with ease and safe fastening and installment of the apparatus for detecting one or more contaminants and/or measuring quality of water.

Abstract: An ultraviolet illuminator for providing a cleaning treatment to a medical device is disclosed. The ultraviolet illuminator can include an ultraviolet cleaning treatment system that operates in conjunction with at least one ultraviolet radiation source and sensor to clean surfaces of a medical device for purposes of disinfection, sterilization, and/or sanitization. The ultraviolet illuminator is suitable for a wide variety of medical devices, instruments and equipment. Stethoscopes and medical instrument probes are illustrative examples of some devices that can be used with the ultraviolet illuminator.

Abstract: Provided is a photochemical reaction device wherein two partitions formed from an optically transparent material are arranged apart from each other between a light source and a reaction liquid, and an optically transparent fluid introduction/discharge means for introducing an optically transparent fluid between the partitions and discharging the fluid and a state change detection means for detecting a change in the state of the optically transparent fluid at the discharge side of the optically transparent fluid introduction/discharge means are provided. Also provided are a photochemical reaction method that uses the photochemical reaction device and a lactam production method that uses the photochemical reaction method. The present invention prevents decreases in the performance of the light source even when the optically transparent material in the photochemical reaction device is damaged, and makes it possible to reliably prevent ignition even if the reaction liquid is a flammable liquid.

Abstract: A gauge having a housing formed of a polymer material and one or more electrical feedthrough pins disposed in the housing. The electrical feedthrough pins can be oriented substantially perpendicular to each other and have complex shapes.

Abstract: A method of determining a property of a heterogeneous medium in motion comprising at least two phases is provided. A light beam is made small in relation to a part of the medium for which a property is to be determined and the bandwidth of the measurement signal is sufficiently high for distinguishing time periods for the measurement signal which are related to the part of the medium for which a property is to be determined. By using the measurement signal for determining the property of the part of the medium for which a property is to be determined for time periods for the measurement signal which are related to that part of the medium, and determining the property by a mathematical calculation using the measurement signal corresponding to that part of the medium, the properties of individual parts of the medium can be determined.

Abstract: A radiation sensor device is disclosed for use with a radiation source, capable of emitting radiation with photon energies larger than the work function of the target comprising a target plate to be impacted by the radiation to generate photo-electrons, the target plate being electrically isolated from a shielding electrode. The shielding electrode is arranged to collect energy-filtered photo-electrons from the target plate, using an electrostatic barrier for the filtering. The target plate is constructed of a carbon material. A current measurement device is operative to keep the target plate at a preset voltage difference with respect to the shielding electrode and measure a photo-electron deficit current as a result of radiation impact on the target plate.

Abstract: An ultraviolet illuminator for providing a cleaning treatment to a medical device is disclosed. The ultraviolet illuminator can include an ultraviolet cleaning treatment system that operates in conjunction with at least one ultraviolet radiation source and sensor to clean surfaces of a medical device for purposes of disinfection, sterilization, and/or sanitization. The ultraviolet illuminator is suitable for a wide variety of medical devices, instruments and equipment. Stethoscopes and medical instrument probes are illustrative examples of some devices that can be used with the ultraviolet illuminator.

Abstract: Provided is a method for performing a wavelength calibration of a monochromator with a diffraction grating by casting light from a standard light source whose emission intensity contains a change with a predetermined cycle onto the diffraction grating and measuring an intensity of light reflected by the grating. The method includes the steps of: measuring at least two times the intensity of the reflected light from the grating within the aforementioned cycle at each of the rotational positions of the grating corresponding to a range of wavelengths including a peak wavelength of a bright line spectral light generated by the standard light source; determining an intensity value 201 at each rotational position based on all the measured values obtained at the rotational position; and locating, as the peak wavelength of the bright line spectral light, a wavelength at which the intensity value 201 is maximized.

Abstract: A method for detecting smoke via a chamber-less smoke sensor includes applying one or more filters to eliminate a flooding of ambient light upon the smoke sensor and emitting, by a source, light. At least one detector detects at least a portion of the emitted light and a processor processes the detected light to signal an alarm condition when one or more threshold levels are reached. A chamber-less smoke sensor includes a light source configured to emit light and at least one detector configured to detect at least a portion of the emitted light. An electronic filter and/or a processor is configured to apply one or more filters to eliminate a flooding of ambient light upon the smoke sensor and process the detected light to signal an alarm condition when a threshold level is reached.

Abstract: A clam-shell luminometer that, when closed, completely encloses an assay reaction mixture-containing reaction vessel and some portion of a reaction carousel or ring. The luminometer includes first and second portions that are coupled to each other, a photomultiplier tube, and plural fiber optic bundles that are optically coupled to the photomultiplier tube. First ends of the fiber optic bundles are disposed adjacent to the reaction vessel in the second portion so that the fiber optic bundles completely surround the perimeter or periphery of the reaction vessel.

Abstract: An optical apparatus comprises an ultraviolet light source (100) configured to transmit the ultraviolet light to a sample (102), one or more wavelength dependent beam splitters (104) and at least two separate detectors (106, 108). Each beam splitter (104) receives, from the sample (102), a band of excitating ultraviolet light and at least one band of fluorescence associated with an interaction between the excitating ultraviolet light and the sample (102) in the optical path through the sample (102), directs the band of excitating ultraviolet light passed through the sample (102) towards a first detector (106), and directs the at least one band of the fluorescence towards at least one separate detector (108). The first detector (106) and the at least one separate detector (108) are simultaneously configured to form electrical signals carrying information on powers of the bands of the ultraviolet light and the fluorescence, respectively.

Abstract: A detector for liquid chromatography has light sources that generate light in an ultraviolet region and in a near-infrared region; a flow cell, through which sample liquid flows; an optical system to let light generated from the light sources become incident on the flow cell concurrently; a detection element that detects light in the ultraviolet region that passes through the flow cell; a detection element that detects light in the near-infrared region that passes through the flow cell; and an arithmetic operation part that performs arithmetic operation of a first signal value obtained from the detection element and of a second signal value obtained from the detection element. The arithmetic operation part combines the first signal value and the second signal value to calculate a signal value with a reduced baseline fluctuation resulting from a mobile phase during a gradient analysis.

Abstract: A spectrometer, in particular for being installed in a sensor module of a fluid analysis system, including a radiation source and the following components defining a beam path or being arranged along the beam path: a sample chamber for a fluid to be examined, a first lens, a diffraction element, a second lens and a detector. A restriction aperture for restricting the effective diameter of the light beam incident on the diffraction element is provided between the sample chamber and the diffraction element.

Abstract: A plastic particle detector for detecting biological and other fluorescent materials is disclosed. The detector detects the fluorescence and scattering signals from these materials using deep UV excitation. The detector is fabricated using plastic materials and exploits the properties of lower manufacturing costs, lower materials costs, light weight, ruggedness and assembly ease offered by plastics, while eliminating stray fluorescence signals ordinarily generated by plastic materials.

Abstract: A gas analyzer and a corresponding method is provided to measure the concentration of formaldehyde within enclosed environments such as within buildings comprising an ultraviolet light source, a sample chamber, a detector. The detector measures the intensity of light received by photosensors within a measurement range of wavelengths, and at least one reference range of wavelengths. Advantageously, the concentration of formaldehyde is determined taking into account fluctuations in the intensity of light emitted by the light source, and in the presence of any interferents such as nitrogen dioxide.

Abstract: Gas analyzer systems and methods for measuring concentrations of gases and in particular dry mole fraction of components of a gas. The systems and methods allow for rapid measurement of the gas density and/or dry mole fraction of gases for a number of environmental monitoring applications, including high speed flux measurements. A novel coupling design allows for tool-free removal of a cell enclosing a flow path to enable infield cleaning of optical components and to enable re-configuration between open- and closed-path analyzer configurations. In closed path configurations, the sample flow path is thermally isolated from the remainder of the gas analyzer to provide more accurate temperature measurements. Composite plastic/metal sample cells are presented with achieve this thermal isolation without compromising analyzer performance.

Abstract: A high-pressure fluorescence flow cell comprises a cell body made of a light-transmissive material, wherein the cell body is penetrated by a straight-line flow path for a high-pressure fluid, wherein the flow path is formed with a cross section of 0.1 mm2 to 5 mm2, both inclusive, orthogonal to its longitudinal direction, wherein the ratio t/d of the wall thickness t (mm) to the width d (mm) of the flow path satisfies formula (1) below, t d ? 1 2 × [ ? + P ? - P - 1 ] × 1.5 ( 1 ) where ? indicates the tensile stress (MPa) of the material of the cell body, and P indicates the withstand pressure (MPa) of the cell body.

Abstract: According to an embodiment, a test preprocessing method includes, detecting a brightness of a specimen based on image of the specimen acquired by capturing the specimen before test processing of the specimen, and detecting a chylous state of the specimen based on the brightness, and detecting a hue of the specimen based on the image, and detecting a hemolytic state of the specimen based on the hue.

Abstract: A device for UV-spectrometric analysis of gaseous compounds includes a measurement channel, a window member transparent for ultraviolet radiation, a radiation source capable of generating ultraviolet radiation, and a spectrographic member for measuring of ultraviolet radiation emitted by the radiation source. The device is arranged such that ultraviolet radiation entering the measurement channel can propagate through the measurement channel, interact with the accommodated gas and be measured by the spectrographic member. An end of the measurement channel is open towards the window member and a channel for guiding a protection gas is arranged in connection to the window member such that protection gas fed through the protection gas channel is allowed to flow over and cover the side of the window member facing the measurement channel and to flow further into the measurement channel.

Abstract: A sterilization system consisting of a mobile emitter, a sensing subsystem and a data logging subsystem is described. The emitter has one or more UV emitting lamps or devices. The sensing system comprises at least one remote UV sensor and at least one door sensor. The door sensor comprises a safety shut off door detector and may contain an emergency stop detector and arming detector to protect people from being exposed to UV energy. The system has a remote control for starting, stopping and setting system parameters which include but are not limited to: treatment time, dosage, room size, room number, unit number, floor, facility name, operator name, operator identification number, password, default dosage values, dosage, and patient identification number. The number of treatments per unit of time can be maximized because of the use of incident light measurement.

Abstract: Some embodiments relate to an absorption probe for measuring an amount of dissolved organic carbon in an aqueous sample, the absorption probe comprising: a housing defining an analysis zone for the containment or passage of an aqueous sample; a light reflector disposed within said housing; an ultraviolet light emitting device disposed within said housing and operable to radiate ultraviolet light along an optical path that passes through the aqueous sample to impinge on said reflector; and a light detector disposed within said housing and operable to detect radiated light reflected from said reflector and to output a received signal from said detected reflected light, said received signal indicative of a measure of an amount of dissolved organic carbon in the aqueous sample.

Abstract: An ultraviolet irradiation apparatus according to an embodiment includes a reaction tank including an inlet port for introducing to-be-treated water, and a discharge port for discharging to-be-treated water after treatment, a first ultraviolet lamp, and an ultraviolet monitor including an ultraviolet sensor. The first ultraviolet lamp is accommodated in a first protection tube including both end portions fixed in the reaction tank. The ultraviolet monitor is accommodated in a second protection tube, the second protection tube is disposed in parallel to the first protection tube, and both end portions of the second protection tube are fixed in the reaction tank.

Abstract: A diagnostic apparatus includes a measurement head, a translating calibration element, and a calibration element actuator. The measurement head includes a diagnostic light source, a light sensor, and a measurement head body. The diagnostic light source operates at a diagnostic wavelength ?D and the measurement head body supports the diagnostic light source and the light sensor in a spaced apart relationship across a target fluid passageway to define a diagnostic light path extending from the diagnostic light source to the light sensor. The translating calibration element is partially transparent to light at the diagnostic wavelength ?D and the calibration element actuator is structurally configured to move the translating calibration element into and out of the target fluid passageway. A size and geometry of the translating calibration element is such that the translating calibration element occupies a substantial entirety of the diagnostic light path when moved into the target fluid passageway.

Abstract: Sensor structure (16) is provided for online monitoring of levels of Furans in oil of a transformer tank. The sensor structure includes a UV light source (26), a filter (30) permitting only UV light of a certain wavelength range to pass, a window (32) permitting the filtered UV light to passes there-through and a UV light detector (36) to receive UV light that passes through the window. When the sensor structure is mounted to the transformer tank that is online so that the window is exposed to oil, and Furans in the oil are being monitored, the Furans will absorb UV light, creating a difference in UV light received by the light detector when compared to the UV light received by the light de tector when the monitored oil has no Furans therein. The output signal of the light detector is substantially proportional to a total of Furans in the monitored oil.

Abstract: Methods and devices implementing, for detecting a recirculation, at the side of a dialysis solution, by a blood-sided administration of a bolus are disclosed. Recirculation may be detected by: measuring a first light absorbance value (ad) of a dialysis solution (d) draining off a dialyzer using a spectrometer, prior to the administration of the bolus; venous administration of the bolus having a predefined volume (QBven) at the venous access; measuring a second light absorbance value (bd) of the draining dialysis solution using a spectrometer, after the administration of the bolus; and determining a change in the absorbance value between the first (ad) and second (bd) measured absorbance values due to the presence of a bolus in the dialysis solution during recirculation as a basis for the recirculation quantification.

Abstract: A citrate detector is provided for use in combination with a blood processing system and replacement fluid tubing or conduit of a disposable set. The citrate detector comprises a light source and a light detector. The light source is configured to emit a light having a wavelength absorbed by citrate, but at least partially transmitted by the replacement fluid conduit of the disposable set. The light detector is configured to receive at least a portion of the light from the light source and generate a signal indicative of the presence or absence of citrate in the replacement fluid conduit based, at least in part, on the amount of light received from the light source. A blood processing system incorporating such a citrate detector may include a flow detector for determining whether fluid is present in the conduit prior to checking for the presence of citrate.

Abstract: The invention concerns a device (20) for UV-spectrometric analysis of gaseous Compounds, comprising: a measurement Channel (5) to accommodate a flow of sample gas, a window (16) transparent for ultraviolet radiation arranged at a first end (5a) of the measurement Channel (5), a radiation source (11) generating ultraviolet radiation arranged to emit radiation through the window (16) into the measurement Channel (5), and a spectrograph (3) for measuring ultraviolet radiation at a second, opposite, end (5b) of the measurement Channel (5). The invention is characterized in that the spectrograph (3) is provided with an opening (12) wherein the second end (5b) of the measurement Channel (5) is open towards the spectrograph (3) such that an inside of the spectrograph (3) and the measurement Channel (5) are in communication via said opening (12). The spectrograph (3) is filled with a protection gas which is allowed to flow through said opening (12) and into the measurement Channel (5).

Abstract: The invention is generally a system and process for detecting phosphonate. The system and process detect and monitor phosphonate using optical, electronics and analytical software technology in a side stream to measure the level of phosphonate in the stream and then calculate the amount of the proper chemicals to inject into a cooling tower or boiler to prevent scale, rust and corrosion.

Abstract: A device for measuring, on an aircraft, the extinguishing agent concentration of a gaseous mixture. The device includes an ultraviolet radiation detector for generating an output signal that is a function of the concentration of the agent in the gaseous mixture and an electronic circuit for determining the concentration as a function of said output signal. The device includes a unit for sampling the gaseous mixture in at least one fire zone of said aircraft, and a measurement chamber passed through by the gaseous mixture and comprising a tranquilizing chamber, the detector being arranged in such a way as to measure the concentration of the agent in the gaseous mixture passing through the tranquilizing chamber.

Abstract: The invention concerns a device (20) for UV-spectrometric analysis of gaseous compounds, said device (20) comprising: a measurement channel (5) intended to accommodate a flow of sample gas to be analyzed, a window member (16) transparent for ultraviolet radiation arranged at a first end (5a) of the measurement channel (5), a radiation source (11) capable of generating ultraviolet radiation arranged to emit radiation through the window member (16) and into the measurement channel (5), and a spectrographic member (3) for measuring of ultraviolet radiation emitted by the radiation source (11) arranged at a second, opposite, end (5b) of the measurement channel (5), wherein the device (20) is arranged such that ultraviolet radiation entering the measurement channel (5) at the first end (5a) can propagate through the measurement channel (5), interact with the accommodated gas and be measured by the spectrographic member (3) at the second end (5b) of the measurement channel (5).

Abstract: Systems and methods for the detection, analysis, and collection of rare cellular events, wherein rare cellular events are defined by events comprising less than 5% of a total number of cells in a sample. The systems and methods generally include: (1) a flow cell dimensioned so as to permit a flow of a sample through the flow cell at a flow rate greater than 300,000 cells per second; (2) a laser positioned to emit a laser beam directed to the flow cell; (3) one or more deflector components disposed between the laser and the flow cell, wherein the deflector component is configured to affect a position of the laser beam relative to the sample flow; (4) one or more fluorescence emission detectors; and (5) one or more processor configured to detect rare cellular events based on fluorescence emission from cell-binding surface markers introduced into the sample prior to the sample being flowed through the flow cell.

Abstract: A sample detection apparatus (200) for detecting a fluidic sample flowing through a first flow cell (202) and flowing through a second flow cell (204) of a sample separation system (10), wherein the first flow cell (202) has a first path length (D) and the second flow cell (204) has a second path length (d) being smaller than the first path length (D), wherein the sample detection apparatus (200) comprises a data determining unit (206) configured for determining first data indicative of a first relation between a detection signal intensity and a concentration of the fluidic sample in the first flow cell (202), and configured for determining second data indicative of a second relation between a detection signal intensity and the concentration of the fluidic sample in the second flow cell (204), and a data combining unit (208) configured for combining the first data and the second data in accordance with a continuous weighting function to thereby derive a weighted relation between detection signal intensity and

Abstract: A multi-stream optical interrogation flow cell (60) for a radiopharmaceutical includes a multiple flow cell body (10a-f) defining a first elongate fluid flowpath (A1-6;B1-6) therethrough for individually conducting a radiopharmaceutical therethrough in fluid isolation from other of the flow cell bodies. Each flow cell body further defines a first and second aligned UV transparent optical guides (36,38) and a first interrogation passageway (26a-f) extending between the first and second optical guides such that a portion of the elongate first fluid flowpath intersects the interrogation passageway such that the radiopharmaceutical flows in between the first and second optical guides. The first and second interrogation passageways of all of the flow cell bodies are optically aligned so that a single interrogation beam is able to extend through each of the interrogation passageways.

Abstract: Fluid analyte sensors include a photoelectrocatalytic element that is configured to be exposed to the fluid, if present, and to respond to photoelectrocatalysis of at least one analyte in the fluid that occurs in response to impingement of optical radiation upon the photoelectrocatalytic element. A semiconductor light emitting source is also provided that is configured to impinge the optical radiation upon the photoelectrocatalytic element. Related solid state devices and sensing methods are also described.