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Taylor Instability in Shock Acceleration of Compressible Fluids

Description: The initial growth of irregularities on an interface between two compressible fluids is studied for impulsive (i.e., shock) acceleration. It was found that the ultimate rate of growth is roughly the same as that given by the incompressible theory, if the initial compression of the irregularities and of the fluids is taken into account.
Date: July 1954
Creator: Richtmyer, Robert D.
Partner: UNT Libraries Government Documents Department
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Status Report on the K-4 Magnetic Induction Machine

Description: Due to laboratory interest in devices capable of production of high current with short rise times in gaseous discharges (plasmas), an experimental machine has been built and tested to obtain data applicable to the design of a high gradient magnetic induction machine. This machine consists of a condenser type energy storage bank air core coupled to a toroid in which the plasma is produced. It has been used to determine circuit parameters and the effect of these parameters on the plasma.
Date: August 8, 1955
Creator: Baggett, L. M.; Franklin, T. L. & Van Duren, A.
Partner: UNT Libraries Government Documents Department
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The Determination of Small Amounts of Thorium in the Presence of Uranium, Titanium, and Tungsten

Description: Thorium is determined in uranium alloys by means of a fluoride separation followed by a complexometric titration. A nitric of hydrochloric acid solution of the alloy is neutralized to a pH of 2.0 to 3.0 and the thorium precipitated as thorium fluoride by the addition of hydrofluoric acid and ammonium fluoride using lanthanum as a carrier.
Date: June 1955
Creator: Willard, Hobart H. (Hobart Hurd), 1881-1974; Moses, Arthur W. & Gardner, Ross D.
Partner: UNT Libraries Government Documents Department
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Oxidation of Metals Subjected to a Linear Temperature Increase: Cubic and Logarithmic Laws

Description: The total amount of oxidation which occurs up to a given time when a metal is subjected to a continuously increasing temperature has been studied by Fasseli and coworkers. A constant rate of increase as well as the linear and parabolic oxidation laws were assumed. The present report extends the analysis to include to the cubic and logarithmic growth laws. The notation for the nth order exponential integral functions which is used here simplifies the equations and the calculations.
Date: July 1955
Creator: Waber, James T. (James Thomas), 1920-
Partner: UNT Libraries Government Documents Department
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Neutron Emission Probabilities From the Interaction of 14-Mev Neutrons With Be, Ta, Bi, and U238

Description: The spatial and spectral distributions of the neutrons from 14-Mev neutron interactions with Ta, Bi, and U have been obtained using nuclear emulsion detectors in conjunction with a neutron collimator. The space-integrated neutron spectrum has been obtained for Be by means of a sphere experiment.
Date: January 1957
Creator: Rosen, Louis, 1918-2009 & Stewart, Leona
Partner: UNT Libraries Government Documents Department
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Fabrication of Plutonium Ingots From Plutonium Turnings

Description: Kilogram quantities of delta-stabilized and pure plutonium turnings can be cast directly into ingots of normal quality with high yields. This report describes the equipment and process used.
Date: December 1, 1956
Creator: Johnson, Karl W. R.
Partner: UNT Libraries Government Documents Department
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Nuclear Propulsion Test Reactor Kiwi-A Neutronic Studies

Description: Critical conditions were obtained for a series of uranium-graphite fueled assemblies in the C/Oy range 150 to 500 with thick graphite reflectors and Be or D2O islands. Perturbations were studied in order to find the effect on reactivity of geometrical changes and engineering features. Information from these studies was used to develop a mock-up of an optimum reactor geometry for the first rocket reactor test device, Kiwi-A. Studies on a zero power mock-up (Zepo-A) helped establish its design de… more
Date: September 1958
Creator: Orndoff, John D. & Hoogterp, J. C.
Partner: UNT Libraries Government Documents Department
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The Effect of Gallium on Plutonium Assay

Description: Several of the plutonium assay methods were reexamined as part of a continuing effort to make improvements in these frequently used analyses. This investigation included a study of the controlled-potential coulometric, amperometric, potentiometric, and photometric titration methods and their applications to assays of delta-stabilized and alpha plutonium metal.
Date: November 1962
Creator: Bergstresser, K. S. (Karl Samuel), 1909-2004 & Waterbury, Glenn R.
Partner: UNT Libraries Government Documents Department
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The Injection Casting of Plutonium

Description: Plutonium metal can be injected into cold metal molds to form castings with thin walls. The operation is performed in a vacuum chamber, using an inert gas as the injecting medium. Sound pieces free of gas cavities can be made using either pure or delta-stabilized plutonium. This report describes the equipment and techniques used to cast a typical thin section piece in the form of a 6 in. diameter, 45' cone.
Date: January 1959
Creator: Anderson, J. W.
Partner: UNT Libraries Government Documents Department
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Uranium Hydrogeochemical and Stream Sediment Reconnaissance of the Pueblo NTMS Quadrangle, Colorado, Including Concentrations of Forty-Three Additional Elements

Description: From summary: This report describes work done in the Pueblo National Topographic Map Series (NTMS) quadrangle, Colorado, by the Los Alamos Scientific Laboratory (LASL) as part of the nationwide Hydrogeochemical and Stream Sediment Reconnaissance (HSSR).
Date: December 1978
Creator: Shannon, Spencer S., Jr.
Partner: UNT Libraries Government Documents Department
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Uranium Hydrogeochemical and Stream Sediment Reconnaissance of the Lander NTMS Quadrangle, Wyoming, Including Concentrations of Forty-Three Additional Elements [Microfiche]

Description: Report detailing uranium and other elemental data resulting from the Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) of 355 water and 1376 sediment samples collected from 1443 locations in the Lander National Topographic Map Series (NTMS) quadrangle, Wyoming, by the Los Alamos Scientific Laboratory.
Date: September 1979
Creator: Shannon, Spencer S.; Sandoval, Walter F.; Montoya, Janet D.; Minor, Michael M.; Simi, Oliver R.; Talcott, Carol L. et al.
Location: None
Partner: UNT Libraries Government Documents Department
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