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A Simple Leak Detector for Tritium

Description: From abstract: "An ionization chamber of the integrating type was built that could detect a tritium leak rate of 10[^-13] cc per second within a few minutes, after a gas-collecting period of 16 hours. Electronic circuitry was avoided by using a quartz fiber voltmeter to indicate the rate of discharge of the chamber."
Date: January 1957
Creator: Colvin, D. W.
Partner: UNT Libraries Government Documents Department
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Electrolytic Reduction of Thorium Oxide

Description: From abstract: "Thorium metal has been produced by electrolytic reduction of thorium oxide. Reduction was accomplished in both a KF-ThF4 melt and a NaCl-KCl-ThCl4 melt. A flowsheet for the complete process using the fused fluoride system is proposed."
Date: February 1957
Creator: Meyer, Leon Herbert, 1926-
Partner: UNT Libraries Government Documents Department
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Irradiation of Powder Metallurgy Plates

Description: From abstract: "Four plates of uranium that were fabricated by powder metallurgy techniques and clad with 1100 aluminum by hot pressing were irradiated in the Materials Testing Reactor. Increases of about one-half per cent in length and one per cent in thickness were observed after exposure of 1600 megawatt days per ton. The surfaces of the plates remained smooth."
Date: April 1957
Creator: Angerman, C. L.; Douglass, D. L. (David Leslie), 1931-; Marshall, R. P. & Caskey, George R., Jr.
Partner: UNT Libraries Government Documents Department
open access

Irradiation of Wrought Uranium Plate

Description: From abstract: "Wrought uranium plate, clad in 1100 aluminum with a nickel bonding layer, was irradiated to a maximum exposure of 1600 MWD/T in the MTR and was demonstrated to be suitable as a fuel element material. Beta-transformed plate, or beta-transformed plate that was cold stretched 2-1/4 per cent, did not change appreciably in dimensions but roughened on the surface. As-rolled plate increased in length, but did not roughen. Irradiation reduced the strength and virtually eliminated the du… more
Date: July 1957
Creator: McDonell, William R. & Marshall, Robert P.
Partner: UNT Libraries Government Documents Department
open access

Extraction of Uranium and Other Actinides From Nitric Acid by Di-N-Butyl N-Butylphosphonate

Description: From abstract: "Equilibrium data are presented for the distribution of uranium, other actinides, zirconium, and nitric acid between aqueous solutions and di-n-butyl n-butylphosphonate diluted with n-dodecane. Data for the physical properties and chemical stability of the phosphonate are also given."
Date: June 1957
Creator: Siddall, Thomas H., III & Loehlin, J. H.
Partner: UNT Libraries Government Documents Department
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Shearing Irradiated Uranium Plates - Part II

Description: From abstract: "Radioactive contamination was confined and controlled in an isolation tank when irradiated plates of natural uranium were cut under water."
Date: July 1957
Creator: Olcott, Roland B.
Partner: UNT Libraries Government Documents Department
open access

Adsorption of Zirconium-Niobium on Silica Gel

Description: From abstract: "Adsorption of radioactive zirconium-niobium from uranyl nitrate solutions by silica gel was increased by increasing the temperature and time the solution contacts silica gel, and decreased by "aging" the solutions before contacting the silica gel."
Date: July 1957
Creator: Karraker, David G. & Parker, Sidney G.
Partner: UNT Libraries Government Documents Department
open access

Kinetics of the Beta Transformation of Uranium

Description: From abstract: "When uranium is heat treated at low beta-phase temperatures and air cooled, the rate of loss of preferred orientation is markedly less than the rate of coarsening of the grain structure. A coarse-grained structure cannot therefore be taken as an infallible indication of satisfactory heat treatment. The final grain size of incompletely transformed metal is essentially equal to or larger than the starting grain size. Large-grained specimens can not be refined by interruption of th… more
Date: September 1957
Creator: McDonell, William R.
Partner: UNT Libraries Government Documents Department
open access

Eddy Current Detection of Al-Si Penetrations in Canned Slugs

Description: From abstract: "An instrument for detecting aluminum-silicon alloy penetrations in the aluminum jacket of fuel slugs is described. The instrument is of the eddy current type and the sensing element is a small probe that does not touch the specimen under inspection. Al-Si inclusions 0.020 inch in diameter that penetrate to within 0.005 inch of the can surface can be detected. The response of the circuits is such that a slug 8 inches long can be scanned in 45 seconds."
Date: December 1957
Creator: Robinson, Richard C. & Ross, John D.
Partner: UNT Libraries Government Documents Department
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