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8164048 |
Nuclear gauges and methods of configuration and calibration of nuclear gauges
Nuclear gauges and method of configuration and methods of calibrations of the nuclear gauges are provided. The nuclear gauges are used in measuring the density and/or moisture of...
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8071937 |
Methods, systems, and computer program products for measuring the density of material including a non-nuclear moisture property detector
The subject matter described herein includes methods, systems, and computer program products for measuring the density of a material. According to one aspect, a material property gauge includes a...
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7928360 |
Methods, systems, and computer program products for measuring the density of material including a non-nuclear moisture property detector
The subject matter described herein includes methods, systems, and computer program products for measuring the density of a sample construction material. According to one aspect, a nuclear density...
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7501624 |
System and method for detecting concealed nuclear materials, radiological materials and chemical explosives
A system for producing beams of high energy photons and neutrons and a method to use such beams to actively interrogate and detect concealed nuclear materials, radiological materials, and chemical...
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7268353 |
Measuring the moisture content of plutonium oxide canisters
A process for measuring the moisture content in a quantity of PuO2 powder. The process detects the content of thermal neutrons emitted by the quantity of PuO2 powder and then deduces its moisture...
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7247857 |
Method and an apparatus for detecting water on a ship's deck
This invention relates to an apparatus for detecting hydrogeneous material on a ship's deck comprising a neutron source located below the surface of the ship's deck and emitting fast/energy-rich...
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7038470 |
Parallel-plate capacitive element for monitoring environmental parameters in concrete
The invention provides a sensor for monitoring an environmental parameter in concrete including an enclosure; a detecting device connected to the enclosure for a detecting at least one...
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6707047 |
Method to measure hydrogen-bearing constituent in a material using neutron spectroscopy
A non-destructive method for quantifying the hydrogen content or a hydrogen-bearing constituent in a material is based on the principle of moderating neutron spectroscopy. This technique is...
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6603122 |
Probe for contamination detection in recyclable materials
A neutron detection system for detection of contaminants contained within a bulk material during recycling includes at least one neutron generator for neutron bombardment of the bulk material, and...
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6310936 |
Thin layer nuclear density guage
The present invention provides an improved thin layer nuclear density gauge comprising a gauge housing having a vertical cavity therethrough and a base, a first radiation detector located at a...
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5703371 |
Modified notched energy filter neutron radiography camera for non-destructive determination of hydrogen content of irradiated BWR fuel elements
A neutron radiography camera operates in cooperation with a neutron beam source for determining hydrogen content of irradiated BWR fuel elements. The camera implements the method using a notched...
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5606167 |
Contraband detection apparatus and method
A contraband detection system (18) using a single, cone shaped neutron beam determines substances concealed in a sample object by developing total neutron cross section spectra for a plurality of...
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5532492 |
Nuclear gauge with compensation for sample irregularities
A neutron gauge is described for determining the moisture content of a moisture containing material. Samples of the moisture containing material are confined in a sample pan and a sample cover with...
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5483063 |
Zero-spaced epithermal neutron moisture detection system
The present invention is directed toward the determination of moisture content per unit volume of material penetrated by a gas filled borehole. An alternate application of the invention is the...
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5446288 |
Integrated substance detection instrument
A portable device used for non-destructive detection of illicit narcotics, or other hydrogen or light element containing substances, includes a weak, self-contained, radioactive source of fast...
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5412217 |
Density-moisture measuring apparatus
A density-moisture measuring apparatus includes an NaI scintillator 4 which detects only a gamma ray from a californium 1 which has passed through an object 20, a plastic scintillator 15 for...
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5272910 |
Vadose zone monitoring system having wick layer enhancement
A vadose zone monitoring system for detecting leaks from a contaminant storage facility or the like is disclosed in which leaks are detected in a confined radial area around at least one generally...
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5258622 |
Apparatus and method for measuring physical characteristics of materials
An instrument and a method are provided for determining the moisture and cement contents of fresh concrete and for calculating and displaying to the user of the instrument the projected strength of...
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5151601 |
Nuclear gauge with compensation for sample of insufficient neutron moderating activity
Method and apparatus for determining the asphalt content of a bituminous paving mix wherein Marshall plug samples of the bituminous paving mix are subjected to a neutron source and the neutrons...
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5083029 |
Measuring water content by neutron thermalization
A vessel for receiving a test sample of fluid whose water content is to be determined and a thermal neutron sensor are retained in cavities of a biological radioactivity shield. The cavities are...
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4992667 |
Device for measuring moisture content of soil and snow water storage
A device for measuring moisture content of soil and snow water storage has a first detector of cosmic neutrons passed through the soil placed deep in the soil at a pre-set depth, a second...
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4884288 |
Neutron and gamma-ray moisture assay
A method and apparatus is disclosed for determining the moisture content of a substance irradiated by a fast neutron and gamma ray source wherein a fast neutron moderator is positioned in the path...
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4874950 |
Asphalt content gauge with compensation for sample temperature deviations
The present invention relates to an improvement in a nuclear measuring gauge for measuring the composition of a hydrogen containing material by counting neutrons which are thermalized by the...
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4766319 |
Portable nuclear moisture-density gauge with low activity nuclear sources
The nuclear moisture-density gauge of the present invention employs a low activity neutron radiation source and a low activity gamma radiation source. In order to achieve more accurate density...
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4754136 |
Method of detecting underground tank leak
A non-destructive and non-invasive method of detecting underground tank leaks using three phase testing. A plurality of boreholes are drilled around the tank with the boreholes preferably extending...
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4645635 |
Method and apparatus for determining the properties of wet steam
A partially collimated beam of thermal/epithermal neutrons is transmitted through a small bore pipe in which wet steam flows under a high pressure. A thermal neutron detector measures the...
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4646068 |
Ice monitoring system using neutron moderation
A layer of hydrogenous material, such as ice which may accumulate on an outer airplane surface, is monitored according to neutron moderation by the layer.A source of fast neutrons and a detector of...
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4542472 |
Methods and apparatus for surveying roof moisture content
A method, and a nuclear radiation gauge, for surveying a roof for moisture in which a thermal neutron gauge is positioned at a predetermined location on a roof, the signal representative of the...
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4499380 |
Apparatus and method for determining the hydrogen content of a substance
Set forth in the accompanying disclosure is an apparatus 10 and method broadly useful for monitoring the concentration of a hydrogenous component within a given sample or space. The specific...
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4439675 |
Moisture and density gauge
A moisture and density gauge which combines sources of gamma and neutron radiation in a casing which is placed in the medium being analyzed. The gauge includes detectors for the gamma and neutron...
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4381452 |
System for measuring trace moisture in a gaseous stream
A sample fluid stream passes through a molecular sieve in which moisture is adsorbed in direct proportion to the moisture in the fluid stream. Fast neutrons beamed through the sieve interact with...
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4362939 |
Method and apparatus for measurement of moisture
A bulk material of grain, lump or any other form is irradiated with neutron and gamma radiation emitted from preferably a single radiation source, and preferably a single radiation detector detects...
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4259575 |
Directional gamma detector
An improved directional gamma radiation detector has a collector sandwiched etween two layers of insulation of varying thicknesses. The collector and insulation layers are contained within an...
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4152600 |
Nuclear radiation moisture gauge calibration standard
A hydrophobic standard for calibrating nuclear radiation moisture gauges. In accordance with this invention, each standard has physical characteristics and dimensions effective for representing to...
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4039809 |
Lower-energy neutron sources for increasing the sensitivity of nuclear gages for measuring the water content of bulk materials
The sensitivity of a gage using a nuclear source for measuring the water content of bulk materials, such as plastic concrete, is increased by use of a lithium or fluorine neutron nuclear source.
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3955087 |
Apparatus for measuring moisture in moving bulk material using a lithium-7 radiation source
A nucleonic device for measuring the moisture content of bulk materials using a radioisotopic fast-neutron source such as lithium-7 admixed with an alpha-particle emitter, such as americium-241, as...
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3889112 |
Method and apparatus for measuring the concentration of water, iron and aluminum in iron ore by neutron radiation
Techniques and apparatus for measuring the concentration of water and specific components in materials are described. The techniques involve irradiating the material with neutrons and monitoring...
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3800141 |
METHOD AND A DEVICE FOR MEASURING A MOISTURE CONTENT OF GRANULAR INORGANIC MATERIAL
In pelleting moist ore flour, for example, accurate measurement of moisture ontent of the sticky mass of material is necessary. This is effected by moving samples from the stream of material,...
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3794843 |
GAUGE FOR DETERMINING THE PERCENTAGE BY WEIGHT OF MOISTURE CONTAINED IN A BULK MATERIAL TRANSPORTED ON A MOVING CONVEYOR
A moisture gauge including a radiation source for irradiating with fast neutrons and gamma radiation a bulk substance having moisture contained therein, a detector responsive to gamma radiation...
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3786251 |
BULK MATERIAL NUCLEAR MOISTURE GAUGING SYSTEM
An improvement on a moisture gauging system of the type disclosed in Stone et al. U.S. Pat. No. 3,431,415, issued Mar. 4, 1969, in which slow neutrons are sensed to provide an indication of the...
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3742367 |
NON-DESTRUCTIVE DETECTION PROCESS FOR NUCLEAR FUEL RODS
A method of detecting moisture and reactive gases in assembled nuclear fuel rods is disclosed in which an alloy of zirconium, nickel and titanium is added to the fuel rod. The fuel rod is uniformly...
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3602713 |
PASSIVE MOISTURE METER
A passive moisture meter measures the number of thermal neutrons present in a material as a result of natural radiation, such as cosmic rays, to determine the moisture content of the material. The...
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3600574 |
RADIOMETRIC METHOD AND APPARATUS FOR MEASURING AND CONTROLLING FOUNDRY SAND MOISTURE
To measure the amount of water present in foundry sand continuously flowing through a chute, a probe within the chute carries a fast neutron source and a slow neutron detector to detect the amount...
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3544793 |
PORTABLE NUCLEAR MEASURING GAUGE PROVIDING MULTIPLE RADIATION AND DETECTING POSITIONS
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3532883 |
MOISTURE DETERMINATION IN SOLIDS BY NEUTRON RADIATION
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3524062 |
APPARATUS FOR MEASURING THE MOISTURE CONTENT AND DENSITY OF THE SOIL
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3748473 |
GAUGE FOR DETERMINING THE PERCENTAGE BY WEIGHT OF MOISTURE CONTAINED IN A BULK MATERIAL TRANSPORTED ON A MOVING CONVEYOR
A moisture gauge including a radiation source for irradiating with fast neutrons and gamma radiation a bulk substance having moisture contained therein, a detector responsive to gamma radiation...
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3428806 |
APPARATUS FOR MEASURING THE HUMIDITY AND MASS OF SOILS
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3354310 |
A mobile density and moisture content sensing device for continuous logging of a terrestrial surface
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3353021 |
Apparatus and process for continuous measurement of moisture in moving coal by neutron thermalization
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