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Class 378/45 - Composition analysis


Subclass of Class 378 - X-ray or gamma ray systems or devices
Definition: Subject matter including measurement of the chemical composition,
No. of patents: 396
Last issue date: 04/10/2012


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NumberTitleIssue Date
4988872Electron probe microanalyzer having wavelength-dispersive x-ray spectrometer and energy-dispersive x-ray spectrometer
An electron probe microanalyzer equipped with a wavelength-dispersive x-ray spectrometer and also with an energy-dispersive x-ray spectrometer. X-rays emanating from the same sample region are detected by these two spectrometers, and spectra are created f...
01/29/1991
4980901Apparatus for and methods of detecting common explosive materials
A beam of energy in a first form, such as electrons, is provided in a first direction. The beam may be pulsed or continuous. The beam is intercepted by a member, such as a converter target, to produce energy in a second form such as x-rays. The converter ...
12/25/1990
4974244Sample positioning method and system for X-ray spectroscopic analysis
A method of positioning a sample for X-Ray spectroanalysis at a spectroscopic machine that includes the steps of determining the point of primary focus of an X-Ray beam upon a master grid and then placing the data upon a mating assembly grid that is posit...
11/27/1990
4962516Method and apparatus for state analysis
A method for analyzing a state of an element in a specimen comprises the steps of applying an exciting source to the element, detecting the intensity of characteristic X-rays generated from measurement points at two wavelengths previously selected dependi...
10/09/1990
4959848Apparatus for the measurement of the thickness and concentration of elements in thin films by means of X-ray analysis
A device which measures both the thickness of a thin film and the concentration of selected elements within the thin film. An X-ray source is utilized to irradiate the thin film sample and two detectors, an energy dispersive detector and a wavelength disp...
09/25/1990
4954714Apparatus for time-resolved photography of fluorescence
A time-resolved photographic analysis device is capable of analyzing for the presence of fluorescent radiation, particularly in a diagnostic sample. The apparatus comprises a light source for emitting exciting pulses as directed onto the sample. A camera ...
09/04/1990
4885465Spectrum display device for x-ray microanalyzer or the like
A display for an x-ray microanalyzer including a wavelength-dispersive x-ray spectrometer and an energy-dispersive x-ray spectrometer for producing two kinds of spectra from the same region on a specimen. A circuit enables markers to be superimposed on th...
12/05/1989
4857730Apparatus and method for local chemical analyses at the surface of solid materials by spectroscopy of X photoelectrons
The apparatus for local chemical analyses at the surface of solid materials by spectroscopy of X photoelectrons comprising an ultravacuum analysis chamber 1 wherein is housed the sample to be analyzed 2 which is connected to a manipulator 3 located outsid...
08/15/1989
4852135Multichannel x-ray spectrometer
A multichannel X-ray spectrometer includes an X-ray tube with a transmission target and a holder for a specimen placed opposite the target, and spectrometric channels arranged around the specimen. These spectrometric channels include, successively arrange...
07/25/1989
4847882Arrangement for the non-destructive measurement of metal traces
The present invention relates to an arrangement for the non-destructive measurement of metal traces in the surface of material samples in which the surface is irradiated with X-ray radiation and a detector, fastened above the material sample, spectrometri...
07/11/1989
4845729Method and apparatus for diagnosis of lead toxicity
Improved methods and apparatus for in vivo measurement of the skeletal lead burden of a patient and for diagnosis of lead toxicity are disclosed. The apparatus comprises an x-ray tube emitting soft low energy x-rays from a silver anode, a polarizer for po...
07/04/1989
4817120Multichannel X-ray spectrometer
A multichannel X-ray spectrometer comprises, in each spectrometric channel, individual holders for a focusing crystal analyzer and for an outlet slit, which are placed on a base and made as cylindrical supports equipped with slit locks. Cylindrical socket...
03/28/1989
4815116Method and apparatus for x-ray analysis of rapidly moving multicomponent materials
A beam of X rays is directed into a traveling product such as paper having a constituent such as ash made up of components such as clay, chalk and titanium dioxide. X rays from the product may produce signal channel responses that are the same to one comp...
03/21/1989
4796284Polycrystalline X-ray spectrometer
A wavelength dispersive X-ray spectrometer is provided with a polycrystalline analyzer for analyzing characteristic spectra of a sample. The polycrystalline analyzer provides a multiple spectrum of characteristic lines which are separated by appropriate p...
01/03/1989
4788700Fluorescent X-ray analyzing method of solution specimen and specimen sampler used for the method
For analyzing the solution specimen according to the fluorescent X-ray analyzing method, a certain quantity of solution specimen to be analyzed is impregnated into a thin porous sheet, for example by dripping method, and the sheet is dried for evaporating...
11/29/1988
4785470Reflectivity and resolution X-ray dispersive and reflective structures for carbon, beryllium and boron analysis
X-ray dispersive and reflective structures and materials are constructed which exhibit improved characteristics in specific ranges of interest. The structures are formed of metallic and non-metallic layer pairs. The structures are formed of alternating la...
11/15/1988
4724536Instrument to measure fluorescence which has occurred in a sample stimulated by X rays
An instrument measures fluorescence which has occurred in a sample stimulated by X rays. The instrument consists of a laser device, an X-ray pulse generation tube excited by the laser pulse from the laser device, a light sensor for detecting fluorescence ...
02/09/1988
4720842Apparatus for detecting nickel/vanadium contained in oil
An apparatus for detecting heavy metals in an oil sample which radiates X-rays from a target type X-ray tube through an iron filter and then upon a sample cell containing the oil to be measured therein and detects fluorescent X-rays excited in the oil by ...
01/19/1988
4698210Sample cup apparatus for use in x-ray spectroscopy employing selectively operated venting means
A sample cup for use in spectroscopy consists of a cap member having an extending peripheral flange about a closed top surface, with a downwardly extending cylindrical bottom section, the peripheral flange of the cap member has a through aperture located ...
10/06/1987
4698832Procedure and means for measuring with the aid of a radio-isotope source the distribution of fillers in a web
A procedure and means for non-destructively measuring the distribution of the filler and/or coating materials in the thickness direction of paper or cardboard. Radiation from a radio-isotope source is used to excite in the material component its character...
10/06/1987
4697080Analysis with electron microscope of multielement samples using pure element standards
A method and modified analytical electron microscope for determining the concentration of elements in a multielement sample by exposing samples with differing thicknesses for each element to a beam of electrons, simultaneously measuring the electron dosag...
09/29/1987
4696023Procedure and means for measuring with aid of an x-ray tube the distribution of fillers or equivalent in a web
A procedure and means for non-destructive measuring of the distribution in the thickness direction of the filler and/or coating materials in paper or cardboard. Radiation emitted by an x-ray tube is used to excite in the material component to be examined,...
09/22/1987
4692935Automatic steel analysis apparatus
An automatic steel analysis apparatus for analyzing the composition of steel materials by carrying out an element analysis using an X-ray excited energy dispersion type fluorescent analysis in the conveying path of the steel materials. A movable housing i...
09/08/1987
4686694Probe for an apparatus for analyzing metals by X-ray fluorescence
An apparatus for analyzing metal alloys includes an electronic unit connected to a hand-held probe unit. The probe unit includes a radiation detector enclosed in a detector housing and a radiation source enclosed in a source housing. The detector housing ...
08/11/1987
4653081Method for taking the radiation background into account in the determination of radiation intensities of analyzed samples
According to the method of the invention, samples undergoing analysis for sorting are irradiated one by one in order to excite X-ray fluorescence. In order to take into account the background radiation, the quality whereof varies according to the frequenc...
03/24/1987
4639942Procedure for measuring the quantity of silicon coating on paper or cardboard
The present invention concerns the measuring of a silicon coating on paper or cardboard moving in the form of a continuous web and which may as fillers contain substances containing silicon such as kaolin, or aluminum silicate. By x-ray radiation from a p...
01/27/1987
4612660Time resolved extended X-ray absorption fine structure spectrometer
The present invention relates to an X-ray spectrometer for obtaining EXAFS data from a target material. The target material is exposed to incident pulsed synchrotron/X-ray radiation having a selected range of continuous spectrum and intensity suitable for...
09/16/1986
4599741System for local X-ray excitation by monochromatic X-rays
A system for X-ray fluorescence analysis utilizes a plurality of parfocal diffractors to selectively monochromatize X-rays and focus them on a sample to be analyzed. In a preferred embodiment, each diffractor comprises a toroidally shaped crystal structur...
07/08/1986
4587666System and a method for mounting film to a sample holder for X-ray spectroscopic fluorescence analysis
A system and a method for mounting a thin transparent film across the open face of a sample holder for X-ray spectroscopic fluorescence analysis. The system includes a flexible, tapered cylindrical ring member snap-mounted over a matching tapered portion ...
05/06/1986
4580049Probe for locating mineral deposits
A cylindrical probe for insertion into a drill hole for detecting the presence of mineral deposits. A source of radioactive irradiation and a detector are mounted concentrically within the housing of the probe, the detector being shielded from direct radi...
04/01/1986
4577337X-Ray fluorescence testing of laminate structures
An X-ray fluorescence method and apparatus of detecting subsurface impact caused delaminations and cracks in cloth and epoxy-catalyst laminates which method and apparatus permit nondestructive testing and evaluation of the existance, location, parameters ...
03/18/1986
4573181X-Ray fluorescence analyzers
An apparatus for determining the content of an element having an atomic number higher than 47, in a sample volume, in particular for determining the concentration of an X-ray contrast agent in vivo, employs a radiation source for such excitation of the el...
02/25/1986
4554128Nuclear fuel rod end plug weld inspection
Apparatus and method for testing TIG (tungsten inert gas) welds of end plugs on a sealed nuclear reactor fuel rod. An X-ray fluorescent spectrograph testing unit detects tungsten inclusion weld defects in the top end plug's seal weld. Separate ultrasonic ...
11/19/1985
4551848Lead-in-air monitor
The invention comprises a filtration unit which retains particles from air passed through a filter medium, a transport mechanism which moves the medium to a station where the particles are subjected to X-rays, apparatus responsive to X-ray fluorescence ex...
11/05/1985
4519092Scanning x-ray spectrometry method and apparatus
The distribution of one or more chemical elements within an object is detected by directing primary x-rays to successive points along a scan path on the object and by analyzing the energies of fluorescent x-rays emitted from the successive points to ident...
05/21/1985
4490832Technique and apparatus for two-phase systems analysis directly in a flow
Method and apparatus for X-ray spectrum analysis of flowing material, and particularly where the material has two phases such as a suspension. A flow of gas or floats are used to separate the flowing material from an X-ray window in a casing containing an...
12/25/1984
4459258Elemental analyzer and method
A method and apparatus for analyzing combined secondary and primary materials by directing primary radiation onto said material whereby secondary radiation is generated. A detector senses the secondary radiation as a transport carries the materials into t...
07/10/1984
4429409Portable apparatus for analyzing metals by X-ray fluorescence
A portable apparatus for analyzing a sample of material by the X-ray fluorescence method includes a hand-held probe unit connected to an electronic unit. The probe unit includes a radiation source for radiating the material sample and a radiation detector...
01/31/1984
4426717Measuring apparatus for X-ray fluorescence analysis
A measuring apparatus for X-ray fluorescence analysis in which the specimen s stimulated by glancing incident radiation and is examined spectrometrically by a detector disposed above the specimen. In the path of rays of the stimulating X-radiation there is...
01/17/1984
4392236System and method of migratory animal identification by fluorescence spectroscopy of element coded implanted tags, and tags used therein
Identification of migratory animals, such as adult fish and the like, by means of implanted coded tags, with tag coding involving one or more higher atomic numbered chemical elements in stable, solid form (elements with atomic numbers 40-42, 44-53, 55-60 ...
07/05/1983
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