Flow Characteristics of a Circular Weir in a Centrifugal Field (open access)

Flow Characteristics of a Circular Weir in a Centrifugal Field

Technical report outlining the use of circular weirs in solvent extraction between liquid phases of nuclear fuel elements. From Abstract : "A correlation of the experimental coefficients was developed to allow calculation of general weir performance."
Date: June 1961
Creator: Webster, Donald S.; Williamson, Clifton L. & Ward, James F.
System: The UNT Digital Library
Application of Amides as Extractants (open access)

Application of Amides as Extractants

Technical report. From Abstract : "Laboratory data are given and discussed that outline the potential application of N, N-distributed amides to the separation of uranium, neptunium, and plutonium from fission products."
Date: January 1961
Creator: Siddall, Thomas H., III
System: The UNT Digital Library
Recovery of Plutonium From Metallurgical Reduction Residues (open access)

Recovery of Plutonium From Metallurgical Reduction Residues

Technical report. From Abstract : "A semicontinuous process was developed for dissolving the solid residues that are produced in the calcium reduction process for converting plutonium fluoride to plutonium metal. The slag and crucible residues are charged to a column-type dissolver, and are there exposed to a flowing solution of hot nitric acid followed by a nitric acid - aluminum nitrate solution. The resultant solution is suitable as feed for an ion exchange process for recovering plutonium."
Date: June 1961
Creator: Dukes, E. Kenneth & Prout, William E., 1921-
System: The UNT Digital Library
Extrusion of Uranium Tubes (open access)

Extrusion of Uranium Tubes

Technical report. From Abstract : "Several hundred long, thin-walled uranium tubes were extruded to close dimensional tolerance by a potentially low cost fabrication process in commercial facilities. The principal process steps were; forging uranium ingots, machining the forged ingots into billets, and extruding the billets into tubes. Some 750 tubes (maximum dimensions: 3.5 inches in diameter and 15 feet long) were fabricated by this process. Dimensional control was excellent in that 88% of the tubes were within +/- 0.010 inch of average dimensions over their entire length."
Date: July 1961
Creator: Fisher, R. E.
System: The UNT Digital Library
Precipitation of Neptunium Peroxide (open access)

Precipitation of Neptunium Peroxide

Technical report. From Abstract : "Optimum conditions were determined for the precipitation of neptunium (IV) peroxide from nitric acid solutions. The results indicate that the precipitation could be applied successfully on a plant scale. ... Two crystalline modifications of the peroxide were prepared; these two crystalline structures were similar to structures previously reported for plutonium peroxide."
Date: July 1961
Creator: Burney, Glenn A. & Dukes, Ernest K.
System: The UNT Digital Library
Identification of Curium-242 in Irradiated Neptunium (open access)

Identification of Curium-242 in Irradiated Neptunium

Technical report. From Abstract : "Curium-242 was experimentally identified as a minor product of the irradiation of neptunium-237 in a nuclear reactor." From Introduction : "Determinations of the half-life, alpha energy, and daughter product of the purified curium nuclide were made in this study to confirm the identity as curium-242."
Date: August 1961
Creator: Carothers, Glenn A.
System: The UNT Digital Library
Zircaloy Cladding Thickness Testers (open access)

Zircaloy Cladding Thickness Testers

Technical report. From Abstract : "A number of similar eddy current instruments were developed to measure the thickness of Zircaloy over uranium metal in the range of 5 to 25 mils, Zircaloy over UO2 in the range of 20 to 40 mils, and the wall thickness of Zircaloy tubes in the range of 20 to 40 mils. The instruments were designed for use with hand-held probes or with feeder-mounted probes to measure the inside and outside cladding thickness of tubular elements and the wall thickness of Zircaloy sheaths. The instruments have a sensitivity of 3 microamps per mil change in Zircaloy thickness and an accuracy of +/- mil."
Date: December 1961
Creator: Goodwin, Leslie E.
System: The UNT Digital Library
Alpha Particle Radiolysis of Anion Exchange Resins (open access)

Alpha Particle Radiolysis of Anion Exchange Resins

Technical report. From Abstract : "Irradiation of 'Dowex' 1, 'Permutit' S-1, and 'Permutit' SK anion exchange resins with alpha particles results in losses in ion exchange capacity and in 'apparent per cent crosslinkage'. The order of decreasing radiolytic stability for these properties in 'Permutit" SX > 'Permutit' S-1 > 'Dowex' 1."
Date: November 1961
Creator: Ahrens, Rolland W.
System: The UNT Digital Library