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Liquid scintillators for optical-fiber applications
A multicomponent liquid scintillator solution for use as a radiation-to-light converter in conjunction with a fiber optic transmission system. The scintillator includes a quantity of 1, 2, 4, 5, 3H, 6H, 1 OH, tetrahydro-8-trifluoromethyl (1) benzopyrano (9, 9a, 1-gh) quinolizin-10-one (Coumarin) as a solute in a fluor solvent such as benzyl alcohol or pseudo-cumene. The use of BIBUQ as an additional or primary solute is also disclosed.
Date:
June 1, 1981
Creator:
Franks, L. A. & Lutz, S. S.
System:
The UNT Digital Library
/sup 18/F-4-fluoroantipyrine
The novel radioactive compound /sup 18/F-4-fluoroantipyrine having high specific activity which can be used in nuclear medicine in diagnostic applications, prepared by the direct fluorination of antipyrine in acetic acid with radioactive fluorine at room temperature and purifying said radioactive compound by means of gel chromatography with ethyl acetate as eluent is disclosed. The non-radioactive 4-fluoroantipyrine can also be prepared by the direct fluorination of antipyrine in acetic acid with molecular fluorine at room temperature and purified by means of gel chromatography with ethyl acetate eluent.
Date:
January 1, 1980
Creator:
Shiue, Chyng-Ysnn & Wolf, Alfred P.
System:
The UNT Digital Library
Multishell inertial-confinement-fusion target
This disclosure relates to fusion targets. It deals particularly with the production of multishell inertial confinement fusion targets. The fuel pellet within such targets is designed to compress isentropically under laser or particle irradiation. When a short pulse at extremely high power density strikes the target containing deuterium-tritium fuel, the resulting plasma is confined briefly by its own inertia. Thermonuclear energy can be released in less time than it takes the fuel pellet to blow apart. However, efficient thermonuclear burn requires that the plasma must remain intact at extremely high temperatures and densities for a time sufficient to allow a large fraction of the nuclei to react. Development of multishell targets has been directed at this problem.
Date:
June 1, 1981
Creator:
Holland, J.R. & Del Vecchio, R.M.
System:
The UNT Digital Library
Passive decay heat removal system for water-cooled nuclear reactors
This document describes passive decay-heat removal system for a water-cooled nuclear reactor which employs a closed heat transfer loop having heat-exchanging coils inside an open-topped, insulated evaporator located inside the reactor vessel, below its normal water level, in communication with a condenser located outside of containment and exposed to the atmosphere. The heat transfer loop is located such that the evaporator is in a position where, when the water level drops in the reactor, it will become exposed to steam. Vapor produced in the evaporator passes upward to the condenser above the normal water level. In operation, condensation in the condenser removes heat from the system, and the condensed liquid is returned to the evaporator. The system is disposed such that during normal reactor operations where the water level is at its usual position, very little heat will be removed from the system, but during emergency, low water level conditions, substantial amounts of decay heat will be removed.
Date:
January 1, 1990
Creator:
Forseberg, C.W.
System:
The UNT Digital Library
Cermets and method for making same
The present invention is directed to a method for making a wide variety of general-purpose cermets and for radioactive waste disposal from ceramic powders prepared from urea-dispersed solutions containing various metal values. The powders are formed into a compact and subjected to a rapid temperature increase in a reducing atmosphere. During this reduction, one or more of the more readily reducible oxides in the compact is reduced to a selected substoichiometric state at a temperature below the eutectic phase for that particular oxide or oxides and then raised to a temperature greater than the eutectic temperature to provide a liquid phase in the compact prior to the reduction of the liquid phase forming oxide to solid metal. This liquid phase forms at a temperature below the melting temperature of the metal and bonds together the remaining particulates in the cermet to form a solid polycrystalline cermet.
Date:
April 1, 1981
Creator:
Aaron, W. S.; Kinser, D. L. & Quinby, T. C.
System:
The UNT Digital Library
Extrusion of metal oxide superconducting wire, tube or ribbon
A process and apparatus for extruding a superconducting metal oxide composition YBa{sub 2}Cu{sub 3}O{sub 7-x} provides a wire (tube or ribbon) having a cohesive mass and a degree of flexibility together with enhanced electrical properties. Wire diameters in the range of 6--85 mils have been produced with smaller wires on the order of 10 mils in diameter exhibiting enhanced flexibility for forming braided, or multistrand, configurations for greater current carrying capacity. The composition for extrusion contains a polymeric binder to provide a cohesive mass to bind the particles together during the extrusion process with the binder subsequently removed at lower temperatures during sintering. The composition for extrusion further includes a deflocculent, an organic plasticizer and a solvent which also are subsequently removed during sintering. Electrically conductive tubing with an inner diameter of 52 mil and an outer diameter of 87--335 mil has also been produced. Flat ribbons have been produced in the range of 10--125 mil thick by 100--500 mil wide. The superconducting wire, tube or ribbon may include an outer ceramic insulating sheath co-extruded with the wire, tubing or ribbon.
Date:
January 1, 1990
Creator:
Dusek, J.T.
System:
The UNT Digital Library
Improved thermal storage module for solar dynamic receivers
This invention relates to a thermal storage apparatus and more particularly to an apparatus for use in conjunction with solar dynamic energy storage systems. The invention is comprised of a thermal energy storage system comprising a germanium phase change material and a graphite container.
Date:
January 1, 1990
Creator:
Beatty, R. L. & Lauf, R. J.
System:
The UNT Digital Library
Method and apparatus for recovering unstable cores
A method and apparatus suitable for stabilizing hydrocarbon cores are given. Such stabilized cores have not previously been obtainable for laboratory study, and such study is believed to be required before the hydrate reserves can become a utilizable resource. The apparatus can be built using commercially available parts and is very simple and safe to operate.
Date:
April 1, 1981
Creator:
McGuire, P. L. & Barraclough, B. L.
System:
The UNT Digital Library
Ternary liquid scintillator for optical-fiber applications
A multicomponent liquid scintillator solution for use as a radiation-to-light converter in conjunction with a fiber optic transmission system. The scintillator includes a quantity of 5-amino-9-diethylaminobenz (a) phenoxazonium nitrate (Nile Blue Nitrate) as a solute in a fluor solvent such as benzyl alcohol. The use of PPD as an additional solute is also disclosed. The system is controllable by addition of a suitable quenching agent, such as phenol.
Date:
June 1, 1981
Creator:
Franks, L. A. & Lutz, S. S.
System:
The UNT Digital Library
Apparatus and Method for Implementation of Elements, Species and Compositions in Nanostructured Materials
Patent relating to an apparatus and method for implantation of elements, species and compositions in nanostructured materials.
Date:
December 16, 2004
Creator:
Imholt, Timothy
System:
The UNT Digital Library
DISH-WASHER
Patent for a combined dishwasher and drainer.
Date:
April 1, 1902
Creator:
Ida Ervin
System:
The Portal to Texas History
Cord-Tying Device.
Patent for certain new and useful improvements in cord tying devices, including instructions and illustrations.
Date:
August 1, 1899
Creator:
Postley, Charles A.
System:
The Portal to Texas History
Acetylene-Gas Generator.
Patent for certain new and useful improvements in acetylene gas machines, including instructions and illustrations.
Date:
August 1, 1899
Creator:
Henderson, Thomas & Stapp, William A.
System:
The Portal to Texas History
Cotton-Chopper.
Patent for a cotton chopper, which can be more easily turned without damaging the cotton plants.
Date:
March 1, 1910
Creator:
Snow, Orto S.
System:
The Portal to Texas History
Cultivator Hopple
Patent for a cultivator hopple. The hopple is a device for shifting beams of cultivators for the purpose of adjusting plows. Illustrations included.
Date:
January 1, 1907
Creator:
Cowart, Stephen A.
System:
The Portal to Texas History
Cotton Thinning Plow
Patent for cotton thinning plow. Illustration included.
Date:
January 1, 1907
Creator:
Edgin, William Alaxander
System:
The Portal to Texas History
Current Wheel
Patent for "a new and Improved Current-Wheel" (line 6) including description and illustration.
Date:
July 1, 1902
Creator:
Wells, James Ashley & Sumrall, Jessie Daniel
System:
The Portal to Texas History
Cotton Chopper
Patent for cotton chopper. Illustration included.
Date:
October 1, 1907
Creator:
Murray, Joel S. & Scarborough, Ezem H.
System:
The Portal to Texas History
Blind-Slat Fastener.
Patent for improvements in shutter attachments, in which it locks the slats in place at a desired angle. Illustration is included.
Date:
October 1, 1907
Creator:
Winslow, Walter W.
System:
The Portal to Texas History
Combined Seed-Planter and Fertilizer-Distributer
Allows for planting and fertilizing fields at same time whether it is "for strewing or for check-row planting with or without wire" (lines12-13).
Date:
September 1, 1903
Creator:
McDaniel, James H.
System:
The Portal to Texas History
Automatic Weighing-Machine
Patent for an automatic weighing machine for weighing and dispensing certain weights of grain into hoppers.
Date:
February 1, 1910
Creator:
Ball, Andrew J.
System:
The Portal to Texas History
Cultivator
Patent for a cultivator. Illustrations included.
Date:
November 1, 1910
Creator:
Davis, George W.
System:
The Portal to Texas History
Combined Mail Crane, Catcher, and Deliverer.
Patent for a combined mail crane, catcher, and deliverer for trains, which can both drop off and pick up mail at the same time.
Date:
June 1, 1909
Creator:
Pepple, John W.
System:
The Portal to Texas History
Bridge Construction
Patent for a truss bridge which also uses suspension cables and is lighter than previous truss bridges.
Date:
October 1, 1907
Creator:
Carroll, John Morton
System:
The Portal to Texas History