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| Number | Title | Issue Date |
| 4388530 | Process and apparatus for the continuous measurement of element contents A method and apparatus for continuous measurement, by X-ray fluorescence lysis, of the elemental content of a slurry, independently of slurry density and slurry composition. The slurry, a source of primary radiation, a target, and a detector are arranged... | 06/14/1983 |
| 4382181 | Detection of atoms using monochromatic X-rays A method and apparatus for detecting, in a specimen, atoms, of an element having an atomic number of at least 20, comprising irradiating the specimen with monochromatic X-rays having a wavelength capable of inducing an inner shell ionization of the atoms ... | 05/03/1983 |
| 4370751 | Method of non-destructively measuring the pressure of a gas in a closed vessel The pressure of a gas in a closed vessel can be non-destructively read by irradiating the closed vessel with x-rays. The irradiated gases in the vessel emit x-rays characteristic of various gases within the vessel. The characteristic x-rays, which pass ou... | 01/25/1983 |
| 4358854 | Measuring devices for X-ray fluorescence analysis A measuring device for X-ray fluorescence analysis, in which a specimen dosed on a carrier is stimulated by glancing incident radiation and examined spectrometrically by a detector which may be arranged above the specimen. On the upper side of an e.g., b... | 11/09/1982 |
| 4349736 | Method for locating and evaluating subsurface uranium deposits having an apparent grade of up to approximately 5% contained U3 O8 This invention relates to a novel method for both locating and evaluating subsurface uranium-bearing formations containing an apparent grade of up to approximately 5% of contained U3 O8 which comprises the steps of taking readings of... | 09/14/1982 |
| 4344181 | Method and apparatus for measuring the content or quantity of a given element by means of X-ray radiation A method and apparatus for measuring the content of an element by means of X-ray-radiation. Electrons from the cathode of a low-power X-ray tube are directed onto one side of the anode of said tube, said anode comprising a thin layer of anode material on ... | 08/10/1982 |
| 4317521 | Apparatus and method for sorting articles Apparatus and method for sorting scrap metal pieces dependent on the type of metal therein. The apparatus includes a conveyor and a feeding arrangement to feed the scrap metal pieces on to the conveyor, together with an X-ray fluorescence detector to exam... | 03/02/1982 |
| 4317035 | Gold monitoring procedure A gold plating process is described in which gold concentration is monitored by a radioactive excitation procedure. This procedure for measuring gold concentration requires no chemical manipulation and yields immediate results. The procedure can be adapte... | 02/23/1982 |
| 4317036 | Scanning X-ray microscope A scanning X-ray microscope including an X-ray source capable of emitting a beam of X-rays, a collimator positioned to receive the beam of X-rays and, to collimate this beam, a focusing cone means to focus the beam of X-rays, directed by the collimator, o... | 02/23/1982 |
| 4283625 | X-Ray fluorescence analysis A sample is analyzed for the presence of an element by exposing it to radiation which causes the element to emit a characteristic radiation. Background radiation and the characteristic radiation are passed through a first filter which attenuates the chara... | 08/11/1981 |
| 4260885 | Selectable wavelength X-ray source, spectrometer and assay method A method and apparatus for producing X-rays having any selected one of a plurality of specific different wavelength spectra greatly facilitates X-ray fluorescence analysis of samples to detect constituent elements. In the X-ray source, an electron beam is... | 04/07/1981 |
| 4239966 | Detection of atoms using monochromatic X-rays A method and apparatus for detecting, in a specimen, atoms, of an element having an atomic number of at least 20, comprising irradiating the specimen with monochromatic X-rays having a wavelength capable of inducing an inner shell ionization of the atoms ... | 12/16/1980 |
| 4224517 | Device for assaying uranium and/or thorium in ore specimens comprising gold foil for suppressing compton background A device for assaying uranium and/or thorium present in ore specimens in concentrations above approximately 20 ppm according to the energy dispersive X-ray fluorescence technique, including a support for holding an ore specimen and a gamma source detector... | 09/23/1980 |
| 4219092 | Automatic guidance apparatus The invention relates to apparatus for automatically guiding a moving object such as a vehicle along a pre-determined path, the apparatus including two detectors which are mounted in a spaced apart relationship on the object, the detectors being responsiv... | 08/26/1980 |
| 4178513 | Art object analyzer An apparatus for analyzing certain properties of an object with a beam of radiation capable of emitting fluorescent x-rays by (1) aligning a pivotally mounted radiation-emitting generator with a pivotally mounted radiation detector relative to a specific ... | 12/11/1979 |
| 4172223 | X-ray generator An X-ray generator has an X-ray tube for generating X rays which are detected by an X-ray detector for feedback control of the X-ray tube. The filament current of the X-ray tube is controlled in accordance with the deviation of the X-ray intensity for com... | 10/23/1979 |
| 4169228 | X-ray analyzer for testing layered structures X-ray fluorescence produced by a primary X-ray beam incident at a very flat angle (below 1°) onto the surface of a specimen contained in a vacuum chamber is used to analyze shallow layers and/or to determine depths of shallow surface layers, such as a ve... | 09/25/1979 |
| 4152596 | Apparatus for reducing pulse pileup in an elemental analyzer measuring gamma rays arising from neutron capture in bulk substances The active reduction of the number of analyzed events with pulse amplitudes which pileup has distorted improves measurement accuracy and response time in an apparatus for neutron-capture-based on-line elemental analysis of bulk substances. Within the appa... | 05/01/1979 |
| 4136778 | Linen sorter A method, system, and attachment for sorting articles, such as laundry or the like whereby each article includes as a part thereof a quantity of each of a number of different materials of the type which each produce secondary radiation at a characteristic... | 01/30/1979 |
| 4120584 | Method of preparing small samples including linishing an area of the samples A method of preparing small samples for analysis by instrumental techniques is disclosed, wherein the method includes steps of holding a representative plurality of samples in contact with a surface of a backing member, with said samples in close proximit... | 10/17/1978 |
| 4110625 | Method and apparatus for monitoring the dose of ion implanted into a target by counting emitted X-rays Practice of this disclosure obtains a measure of the dose or fluence of implanted ions into a target for device fabrication by monitoring emitted X-rays. Illustratively, ion beams of B+, P+ or As+ have been implanted into ... | 08/29/1978 |
| 4080171 | Rapid analysis of trace components contained in a liquid A method for the rapid analysis of trace components in a liquid, which comprises filtering said liquid through a filter paper having at least one of anion exchange functional groups and chelating ion binding functional groups, thus collecting substantiall... | 03/21/1978 |
| 4063089 | X-ray chemical analyzer for field applications A self-supporting portable field multichannel X-ray chemical analyzer system comprising a lightweight, flexibly connected, remotely locatable, radioisotope-excited sensing probe utilizing a cryogenically-cooled solid state semi-conductor crystal detector ... | 12/13/1977 |
| 4048496 | Selectable wavelength X-ray source, spectrometer and assay method A method and apparatus for producing X-rays having any selected one of a plurality of specific different wavelength spectra greatly facilitates X-ray fluorescence analysis of samples to detect constituent elements. In the X-ray source, an electron beam is... | 09/13/1977 |
| 4037109 | Sample cell A sample cell useful in fluorescent X-ray analytical devices is provided herein, which cell is composed of an inner frame; an inner frame cover and a radiation-permeable sheet which houses the sample to be analyzed and an outer frame which covers the samp... | 07/19/1977 |
| 4031388 | Method for the analysis of isotopes A method for the qualitative or quantitative analysis of isotopes, characterized by bombarding a substance with X rays or electrons of a previously determined dose and energy for analyzing an isotope in the substance to be detected or measured, to produce... | 06/21/1977 |
| 4021667 | High speed pulse processing Method and apparatus for first converting energy pulses, such as from the energy-dispersive detector of an emission spectroscopy system, into multiple ramp signals, the ramps of which are parallel with the vertical distance between the ramps being proport... | 05/03/1977 |
| 4015124 | Determining the concentration of sulphur in coal This invention relates to a method for determining the concentration of sulphur in coal and to apparatus which enables this method to be put into practice. The method involves measuring the intensities of the X-ray fluorescent radiations from iron and sul... | 03/29/1977 |
| 4009390 | Process for measuring tenderness of cooked meat To predict the tenderness of cooked meat, the concentrations of certain trace elements such as copper, cobalt, iron, zinc, calcium, selenium and silicon and sometimes cadmium and lead in uncooked meat muscle are measured in samples taken from the carcass ... | 02/22/1977 |
| 3984679 | Coating thickness monitor for multiple layers An apparatus for measuring the plating thickness of a thin gold coating on a substrate such as a sheet or thin wire is described. The gold plating thickness, which may range from one to about one hundred and fifty microinches, is measured with an X-ray an... | 10/05/1976 |
| 3983397 | Selectable wavelength X-ray source A method and apparatus for producing X-rays having any selected one of a plurality of specific different wavelength spectra greatly facilitates X-ray fluorescence analysis of samples to detect constituent elements. In the X-ray source, an electron beam is... | 09/28/1976 |
| 3963922 | X-ray fluorescence device An electron beam from an electron column instrument impinges on a target foil to produce a primary X-ray beam which, in turn, passes through a collimator to impinge on a specimen. The X-rays fluoresced from the specimen by the primary X-ray beam are detec... | 06/15/1976 |
| 3944822 | Polarization excitation device for X-ray fluorescence analysis Samples are analyzed for their trace elemental composition by irradiating the samples with a beam of nearly monochromatic and polarized photons and detecting the fluorescent photons with an energy dispersive solid-state detector. The polarized photon sour... | 03/16/1976 |
| 3940617 | Method for nondestructive fuel assay of laser fusion targets A method for nondestructively determining the deuterium and tritium content of laser fusion targets by counting the x rays produced by the interaction of tritium beta particles with the walls of the microballoons used to contain the deuterium and tritium ... | 02/24/1976 |
| 3937953 | Non-contactive proximity sensor system utilizing nucleonic radiation fluorescence A proximity sensor utilizing nucleonic radiation fluorescence to detect the presence, position and/or distance of a target object from a monitoring object. The inventive system has particular application in collision avoidance systems for subsatellites, f... | 02/10/1976 |
| 3936633 | Method of determining lanthanidies in a transition element host A phosphor composition contains a lanthanide activator element within a host matrix having a transition element as a major component. The host matrix is composed of certain rare earth phosphates or vanadates such as YPO4 with a portion of the r... | 02/03/1976 |
