51results about "Testing radioactive materials" patented technology

The present invention relates to an electronic, integrated, nose and tongue device, which can be stationary or portable (movable) and is designed for real-time monitoring and analyzing information about liquid substances of any kind, as well as toxic, flammable, choking, radioactive and / or polluting gases present in the air or water, which is achieved by the use of artificial intelligence algorithms capable of classifying and training the system so as to recognize the different sign patterns sent by the electronic nose and the electronic tongue. Embodiments described herein can be used in outdoor conditions and complicated areas or connected to water treatment systems, such as those used in electro-coagulation, wherein such a device may be connected to the inlet piping of the treatment systems and can determine how much energy must be used by the electro-coagulators according to the contamination degree of the water.

An automated microprocessor-controlled monitoring system for the sampling and analysis of environmental contamination has independent multiple sample chambers 47, 48. The sample chambers are populated with multiple analytical sensors 59, 60, 61, Multiple water level sensors 49, 50, 135 located in the sample chambers are capable of determining the volume of sample, or standard, introduced into the individual sample chambers. The monitoring system is standardized with independent calibration modules 7L 80, 89 to support the analytical sensors in the sample chambers. This configuration of a monitoring system allows a “plug and play” configuration with all analytical sensors capable of standardization. The system anticipates the incorporation of future sensing methodologies through its flexible design. The disclosed system is capable of operating multiple pumps 17, 18, 19 and measuring the water levels 30, 31, 32 in multiple monitoring wells 36, 37, 38 allows for the automated acquisition of data for slug, aquifer, and tracer tests. Other embodiments are described and illustrated.

A system and process are disclosed that provide high accuracy and high precision destructive analysis measurements for isotope ratio determination of relative isotope abundance distributions in liquids, solids, and particulate samples. The invention utilizes a collinear probe beam to interrogate a laser ablated plume. This invention provides enhanced single-shot detection sensitivity approaching the femtogram range, and isotope ratios and particle assays that can be determined with relative precision better than about 10%.

A system and process are disclosed that provide high accuracy and high precision destructive analysis measurements for isotope ratio determination of relative isotope abundance distributions in liquids, solids, and particulate samples. The invention utilizes a collinear probe beam to interrogate a laser ablated plume. This invention provides enhanced single-shot detection sensitivity approaching the femtogram range, and isotope ratios that can be determined at approximately 1% or better precision and accuracy (relative standard deviation).

The invention relates to a device for measuring the volume of a sample, that comprises two cavities formed in a same block, pressure sensors (3, 4) mounted on the block and surrounded by a radiation shield (28) and connected to the sample chamber (1) by curved ducts. A temperature sensor (25) is also added. The apparatus can be used for measuring the volume of radioactive samples by gas expansion in an expansion chamber (2) without the radiations damaging the pressure sensors (3, 4) while allowing for the correction of temperature-rise effects.

A sampling and preparation system is positioned in a coal and biomass co-fired power station, which includes a sampling pipe connected with a boiler flue of the co-fired power station. The sampling pipe from the end close to the boiler flue to the other end away from the boiler flue includes a filtering device, a mass flow controller, a carbon dioxide trap and a pumping device. The sampling and preparation system also includes a carbon dioxide transfer device and a 14C testing device. The carbon dioxide transfer device is applied to transferring the carbon dioxide from the carbon dioxide trap to the 14C testing device which is applied to measuring the 14C in the carbon dioxide sample. The system may calculate the biomass blending ratio of the coal and biomass co-fired power station rapidly.

This disclosure provides a system and method for inspecting a component. The device can have a detector positioning system coupled to a detector and operable to move the detector within five degrees of freedom. The device can have an emitter positioning system operably coupled to the emitter and operable to move the emitter in three dimensions. The device can move the detector to a reference point above the component, the reference point being separated by a radius (ρ) on the applicate axis from an inspection point on the component. The controller can also receive at least one input from a display, and command the detector to a detector position within a spherical dome centered on the reference point based on the at least one input.

Systems, devices, and methods are provided that facilitate synthesis and analysis of chemical compounds on a convenient and automatable palette-based platform. Palettes utilized for analysis support a variety of functional sites, including test wells, separation devices, and test sites that have rapid thermal equilibration, on a single test fixture. This permits both the performance of a wide variety of tests and of tests with different temperature requirements or responses in parallel, on the same test fixture. Such systems, devices, and methods are particularly suitable for production and characterization of radiopharmaceuticals.

The invention discloses an identification method for identifying <14>C nuclide in a urea [<14>C] capsule. The identification method comprises the following steps: S1, preparing a test solution; S2, respectively acquiring a beta energy spectrogram of the test solution, a beta energy spectrogram of a <14>C standard source, QPE of the test solution and QPE of a <14>C standard source; and S3, generating an identification result according to the beta energy spectrum of the test solution, the beta energy spectrum of the <14>C standard source, the QPE of the test solution and the QPE of the <14>C standard source. According to the invention, the maximum energy of the test sample can be converted through the QPE of the test sample and the <14>C standard source, which is measured under the same condition; the method has the advantages that energy calibration does not need to be carried out on the liquid flash measuring instrument, conversion is more objective and accurate through the measuring result, and the influence of subjective factors for manually judging the energy end point is avoided.

Embodiments of the present invention relate to microfluidic devices and systems comprising such devices for use in the determination of sample characteristics. Certain embodiments relate to methods for determining one or more characteristics of a sample comprising a compound for in vivo use. Aptly, certain embodiments of the present invention relate to devices and methods for assessing radiopharmaceuticals and their suitability for administration to a patient in need thereof.

The system for automatic determination of the density of an object (100) comprises: an apparatus (2) to determine a significant dimension (x) of said object (100), an apparatus (30) to determine the intensity (I) of a photon beam attenuated by passing through said object (100), an acquisition, processing and analysis apparatus (200), means (70, 72, 80, 82, 84, 86, 88) of transporting the object (100), first means (74, 76, 78) of adjusting the position of the object (100), second means (90, 92, 94, 96, 98) of adjusting the position of the object (100). The method for using the system described above includes steps to calibrate components of apparatuses 2 and 30, and steps to actually determine the significant dimension of objects (100), that are done on each object (100) in said set of objects.

Aluminum, boron and silicon were identified as potential leachables from borosilicate glassware and a silica based QMA during handling of aqueous 18F. The addition of only 0.4 ppm aluminum as AlCl3 in the eluent vial resulted in a strong reduction in the labeling yield of a model [18F]fluoride SN2 reaction (from 80 to 40% incorporation). The addition of boron as KBO2 and silicon as NaSiO3 did not result in any significant decrease in labeling yield. Interestingly, there was an interaction effect between AlCl3 and KBO2 in which the negative effect from AlCl3 on labeling yield was counteracted by KBO2. The present invention demonstrates that aluminum and boron from borosilicate glassware have a strong influence on the labeling yield in nucleophilic SN2 reactions with n.c.a [18F]fluoride.

It comprises, in addition to a sampling system (3), at the outlet of a vat (1) containing the liquid to be sampled, a selector (4) that establishes switching on an array of similar vats (1), and especially a suction unit (5) that operates by releasing compressed air into a nozzle (28); the airflow direction is controlled by a valve (29) between a direction directed toward the outlet (6), causing the suction of the liquid from the vat (1), and an opposite direction when the valve (29) is closed, feeding the liquid back into the vat (1) and cleaning the pipe (2).

A method for the quantification of 227Ac in a 223Ra composition comprising passing the composition through a first solid phase extraction column A, wherein said column comprises a thorium specific resin, passing the eluate of column A through a second solid phase extraction column B, wherein said column comprises an actinium specific resin and recovering the 227Ac absorbed onto the resin in column B and determining the amount thereof.

The present invention relates to monolithic bodies, uses thereof and processes for the preparation thereof. Certain embodiments of the present invention relate to the use of a monolithic body in the preparation of a radioactive substance, for example a radiopharmaceutical, as part of a microfluidic flow system and a process for the preparation of such a monolithic body.

A technique and device to determine the spectrum of electromagnetic radiation in a certain range of wavelengths comprising: splitting said radiation into more than one beam; let these beams counter-propagate in a Sagnac-type ring interferometer; and imprinting a wavelength-dependent angular tilt onto the wavefront of each beam by at least one dispersive element which preferably is a transmission grating or grism; and re-combining the multiple beams on a detector that exhibits spatial resolution and can therefore resolve the fringes formed by interference; and perform the mathematical operations to determine the spectrum of said radiation from the obtained interferogram, wherein the dispersive element is mounted on a stage providing linear and / or rotational movement.

The present invention provides a graphitization device, a sampling and sample preparation system and a sampling and sample preparation method. The graphitization device is provided with a sample tubefor storing a flue gas sample, wherein CO2 and CO in the flue gas sample are reduced into graphite in the sample tube; and the sample tube is provided with: a gas inlet for introducing the flue gas sample into the sample tube, and an exhaust port used for exhausting the flue gas sample from the sample tube. The graphitization device can realize gas washing and sampling through opening and closingof the gas inlet and the gas outlet, and CO2 and CO in the flue gas sample stored in the sample tube are finally converted into graphite in a positive pressure environment.

The present application provides a means for differential diagnosis of Parkinson's disease and the clinically similar Parkinsonian disorders multiple system atrophy with predominantly Parkinsonian features (MSA-P) and progressive supranuclear palsy (PSP).

The invention discloses a decorative material detection device, which comprises a shell, an anti-slip rubber sleeve, a humidity sensor, a central processing unit and a USB (Universal Serial Bus) charging interface. A loudspeaker is arranged on the bottom part of the shell; the anti-slip rubber sleeve is arranged on the outer part of the shell; a lithium battery is arranged on one side of the loudspeaker; the USB charging interface is arranged above the loudspeaker; the central processing unit is arranged above the USB charging interface; a temperature sensor is arranged above the central processing unit; the humidity sensor is arranged on one side of the temperature sensor; an electric display screen is arranged on the upper part of the shell; a warning light is arranged above the electricdisplay screen; a sensor is arranged on one side of the warning light; an LED (Light-emitting Diode) illumination lamp is arranged on one side of the sensor; a detector is arranged above the shell; aventilating and inflowing hole is formed in the detector. The decorative material detection device provided by the invention has the beneficial effects of small equipment size, convenience in carrying, complete functions, long service life and high intelligent degree.

The disclosure relates to a manufactured composition, material or device comprising at least two different nonradioactive isotope atoms. Each nonradioactive isotope atom is present in an amount sufficient to increase the total amount of the nonradioactive isotope atom above the total amount found in the manufactured composition, material or device in the absence of adding the nonradioactive isotope atom to increase said total amount. The ratio(s) of the at least two nonradioactive isotopes in the manufactured composition, material or device are measurably different than the ratio(s) found in the manufactured composition, material or device in the absence of adding the nonradioactive isotope atom to increase said total amount.

The invention provides a building material automatic detecting and washing device and relates to the field of building detecting devices. The building material automatic detecting and washing device comprises a bottom plate; the bottom plate and a limiting plate are fixedly connected through spring wires, and the lower end of the limiting plate is provided with a limiting plate air cylinder; the upper end of the bottom plate is provided with a feeding conveying port, and the upper end of the feeding conveying port is provided with a first rack rod; a controlling rod is arranged on one side ofthe first rack rod, and a screening port is formed in one side of the feeding conveying port; a conveying rail is arranged at the upper end of the screening port, and a translation detecting instrument is arranged on the surface of the conveying rail; a brush air cylinder is arranged inside a building material detecting box, and a control device is arranged at the lower end of the building material detecting box and internally provided with a detector; and an indicating lamp is arrange on the surface of the control device. The problems that according to most detecting devices in present markets, the devices are simplex, in the detecting process, due to carelessness, working problems occur, repairing wastes energy and financial resources, unqualified products do radiation harm to bodies ofworkers, and radiation damage to people can be caused are solved.

The invention discloses a uranium tailings radon precipitation test device under electric field effect. The test device comprises an insulation reaction tank for filling a sample in dispersion; a voltage loading device for providing on-load voltage for the sample is arranged on the insulation reaction tank, a heating tank for heating the sample in the insulation reaction tank is arranged at the outer of the insulation reaction tank in a sleeve manner; a data collection system and a pressure supply system for providing air pressure for the internal space of the insulation reaction tank are arranged on the insulation reaction tank. A more concise and safer brand-new method is provided for the test of precipitation condition of the radon under the effect of different DC or AC voltages, temperatures, and air pressure, and the theoretical basis and application value are provided for the radon-reduction and radon-controlling of the uranium tailings stacked at an earth surface tailings pond.