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Mechanical Design of the CVTR Fuel Assembly and Thermal Baffle

Description: Report discussing the development of the fuel assembly and thermal baffle design for the Carolinas–Virginia Tube Reactor. Selection of the full-length fuel assembly design and thermal baffles; development of the fuel rod, assembly, and thermal baffles; and test program are discussed.
Date: June 1962
Creator: Selz, A.; Balog, L. J.; Hornak, L. P. & Eng, G. H.
Partner: UNT Libraries Government Documents Department
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The Separation of the CuSO4-CoSO4-H2O System in a Horizontal Thermal Diffusion Column

Description: A horizontal thermal diffusion column was constructed and operated in the separation of CuSO4-CoSO4-H2O, each salt being 0.5 molal. The equilibrium constant for mass transfer as 0.82 for separation of CuSO4 from water and 0.86 for CoSO4. It was concluded that this method is suitable for separating the salt mixtures, the height of the transfer unit is proportional to the flow rate for total reflux operation, and the separation of each salt from water is independent of the other salt. (T.R.H.).
Date: June 1959
Creator: Fisher, Gerald Thomas & Prados, J. W.
Partner: UNT Libraries Government Documents Department
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Radiation Stability of Organic Liquids. Semi-Annual Report No. 3 for 1 January to 30 June 1958

Description: When most solvents are exposed to radiation, decomposition occurs. The decomposition products may adversely affect the solvent extraction of uranium, thorium, or plutonium in a variety of ways. The research described in this report extends previous studies. The main items of interest are: (1) the roles of "radiation polymer" and dibutyl phosphoric acid in the plant problems of uranium retention and emulsification; (2) the effect of nitric acid upon the extent of radiation damage; (3) the radiat… more
Date: June 30, 1958
Creator: Wagner, R. M. & Towle, L. H.
Partner: UNT Libraries Government Documents Department
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Mechanisms of Surface Adsorption in Homogeneous Reactor Loops.Final Report for January 1, 1957 to June 30, 1958

Description: The work during the past six months, using radioisotopes, is summarized in detail, and earlier results are included as pertinent. Most of the research was performed in rocking autoclaves, using a uranyl sulfate solution and oxygen overpressure at 250 to 300 deg C. The conditions were chosen to simulate homogeneous reactor test conditions without elaborate apparatus and in a reproducible manner. The suspended solids and the deposits on type 347 stainless steel and Zircaloy-2 specimens were analy… more
Date: June 30, 1958
Creator: Eding, H. J. & Carr, E. M.
Partner: UNT Libraries Government Documents Department
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Cross Sections of the Fission of U235 Induced by Intermediate Energy Helium Ions

Description: The absolute fission yields of approximately twenty-five nuclides from the helium ion induced fission of U235 were determined with an accuracy of +- 5-15% for several energies ranging from 20 to 40 Mev. Such features of fission as the symmetric-asymmetric modes of fission, the relation of total fission cross section to compound nucleus theory, fine structure in fission product distribution, valley to peak ratios and neutron emission are discussed as well as some of the experimental detail invol… more
Date: June 1959
Creator: Gunnink, Raymond
Partner: UNT Libraries Government Documents Department
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Abstract Bibliography on Standing Wave Linear Accelerators (January, 1946 to December, 1957)

Description: This list does not claim to be either an exhaustive or critical compilation. Sources consulted: Science Abstracts A, January, 1940 to December 1957; Science Abstracts B, January, 1940 to December 1957; Reports on Progress in Physics, Volume III, 1948-1949, pages 102-132 (preview article)
Date: June 20, 1958
Creator: Malmberg, Carol
Partner: UNT Libraries Government Documents Department
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Further Studies on the Mechanism of Oxidation of Uranium Dioxide

Description: The results of x-ray and density studies of the UO/sub 2/ oxidation products indicate that UO/sub 2/ oxidizes by the immediate formation of a surface gamma -tetragonal U/sub 3/O/sub 7/ phase. This process is controlled by the diffusion of oxygen through the second phase. Analysis of the alpha --UO/sub 2/ lattice parameters demonstrates that the solubility of oxygen in UO/sub 2/ below 300 deg C is less than one atom% per mole of UO/sub 2/. The stability of U/sub 3/ O/sub 7/ and the interpretatio… more
Date: June 6, 1957
Creator: Weissbart, Joseph; Blackburn, Paul E. & Gulbransen, Earl A.
Partner: UNT Libraries Government Documents Department
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An Investigation of Scaling of Zirconium at Elevated Temperatures : Quarterly Status Report, no. 20, March 2, 1958 to June 2, 1958

Description: During the last quarter, work was continued on the production of large single crystals of zirconium so that the epitaxy between metal and oxide could be studied. Two methods were used in an attempt to grow large zirconium crystals: (1) strain-anneal method; (2) continuous vacuum-anneal method.
Date: June 4, 1958
Creator: Probst, H. B. & Evans, E. B.
Partner: UNT Libraries Government Documents Department
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Effect of Quadrupole Lenses

Description: "The effect of correcting quadrupole lenses on the betatron oscillation characteristics of an AG synchrotron was studied, and general formulas are given for the fractional changes of the amplitude and phase functions. Calculations performed for different setups of different numbers of lenses for the CEA synchrotron structure point out that one may correct for sizable errors in the n- value by means of 8 pairs of quadrupole lenses in two consecutive straight sections with the focusing lens betwe… more
Date: June 3, 1957
Creator: Lanza, G. & Steffen, Klaus G.
Partner: UNT Libraries Government Documents Department
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Pole-Face Windings

Description: "A summary is presented of a preliminary study of the application of pole- face windings to the Cambridge Electron Accelerator. Estimates are made of the currents required, the forces on the wibdings and the voltages induced by the magnetic flux. The possibility of automatic control of the pole-face currents in explored, and feasible control systems are suggested."
Date: June 20, 1957
Creator: Rees, John
Partner: UNT Libraries Government Documents Department
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Off-Site Animal Investigation Report : Second Annual Report

Description: Since the inauguration of the Off-Site Animal Investigation project n 1957, there has been one annual report rendered as of 30 June 1958. this is the second annual report dated as of 30 June 1959. The objectives of the project have been unchanged during the past year. These are (1) to enhance the Nevada Test Site/off-site rancher relationship through an active investigation project in their interests, and (2) to provide further information as to the status of the off-site animals in their envi… more
Date: June 30, 1959
Creator: Farmer, Garland F.
Partner: UNT Libraries Government Documents Department
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Diffusion in a Temperature Gradient

Description: To summarize one finds that for diffusion in a temperature gradient by a vacancy mechanism one must have E(M) < E(F). No such restrictions occur for interstitial diffusion. The spatial vacancy distribution is very nearly the equilibrium distribution if dislocations are present. If no dislocations are present then one could obtain E(M) by measurement of the spatial distribution.
Date: June 1959
Creator: Koehler, James S. (James Stark), 1914-2006
Partner: UNT Libraries Government Documents Department
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The Effect of Crystallite Size on the Bulk Density and Strength Properties of Uranium Dioxide Specimens

Description: Fused uranium dioxide was separated into fractions of varying particle size by air separation. Specimens of the nominal size of 1/8 by 1/4 by 1½ in. were formed by hydrostatic pressing, firing, and lapping. Specimens prepared from the 0 to 5 μ fraction were the strongest and most dense. The room-temperature density was about 92% of theoretical and the room-temperature flexural strength was about 12,000 1b. per sq. in. When tested at 1000°C., the strength was about 18,000 1b. per sq. in. The fle… more
Date: June 1, 1955
Creator: Burdick, Milton D. & Parker, H. S.
Partner: UNT Libraries Government Documents Department
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Effects of Ultraviolet Radiation on Chloroplast Reactions and Plant Metabolism

Description: This technical report represents a brief survey of work by this project on the effects of ultraviolet radiation (UV) on certain of the photochemical and metabolic properties of rhubarb chard and sugar beet (Beta vulgaris). These plants were selected for this work because for some years they have been used as sources of chloroplasts for Hill reaction studies in this laboratory. Some of this work has appeared as a brief paper.
Date: June 15, 1955
Creator: Anderson, Donald R.; Spikes, John D. & Mayne, Berger C.
Partner: UNT Libraries Government Documents Department
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Fundamental Research in Nuclear Spectroscopy and X-Rays. Annual Report No. 1 for Period October 1, 1954 to September 30, 1955 on Research in Precision Spectroscopy of Nuclear Energy Levels

Description: The primary purpose of this contract is to develop and exploit techniques for the precision measurement of nuclear energy levels by the spectroscopic study of gamma-rays emitted during the decay of radioisotopes, (1) by the use of a high resolving power curved crystal focusing spectrometer to study wavelengths and intensities of gamma-rays themselves, (2) by means of a precision beta-ray spectrometer to study the conversion lines from gamma-rays both by internal conversion and with external con… more
Date: June 1955
Creator: DuMond, Jesse W. M. (Jesse William Monroe), 1892-1976
Partner: UNT Libraries Government Documents Department
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Reaction of Graphic with Sodium

Description: Most of the publications in the open literature available to us agree that sodium does not readily react with graphite, though potassium, rubidium, and cesium readily enter between the planes of the graphite lattice. In view of the conflicting evidence available, it seems inadvisable without very extensive further study to consider the use of graphite in direct contact with liquid sodium, except under very mild conditions of temperature and irradiation, and then only with very pure sodium and c… more
Date: June 19, 1952
Creator: Montet, G. L.
Partner: UNT Libraries Government Documents Department
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Fundamentals of Glass-to-Metal Bonding. [Part] 5-A. Temperature and Pressure Dependence of the Wettability of Metals by Glass. [Part] 5-B. Reactions of Tantalum and sodium Silicate Glass. Technical Report No. 5

Description: Part A. The major effort during the past year has been the construction of a suitable vacuum furnace for studying the effects of temperature and pressure on the wettability of metals by glass. A systems was completed that was capable of subjecting test combinations up to temperatures of 1400 degree C at a working pressure of 1 x 10(-5) mm. of Hg. Part B. A compound, identified by X-ray analysis as sodium meta tantalate (na2Ta2O6), was found at the interface between a sodium silicate glass and t… more
Date: June 24, 1955
Creator: Fulrath, Richard M.; Mitoff, Stephan P. & Pask, Joseph A. (Joseph Adam), 1913-2003.
Partner: UNT Libraries Government Documents Department
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Studies of Thorium X Applied to Human Skin. IV. Clinical and Autoradiographic Findings Following the Introduction by Iontophoresis

Description: 1) The technical details of controlled experiments with iontophoresis of thorium X solutions are described. 2) Experiments carried out on living human skin in situ demonstrate that Iontophoresis of weak solutions of thorium X will increase its biologic effects as judged by erythema and pigmentation, and cause greater penetration as shown by autoradiography. 3) The possible relationship between increased penetration of thorium X and increased clinical biologic effects is discussed. 4) Some possi… more
Date: June 1955
Creator: Fleischmajer, Raul & Witten, Victor H.
Partner: UNT Libraries Government Documents Department
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Gas Plated Coatings on Metals and Alloys : Progress Report No. 6 and Final Report

Description: The object of the work performed under this contract was to investigate the possibility of gas plating copper base metal with (a) pure chromium metal from chromium hexacarbonyl vapor; (b) chromium-nickel plating from a mixture of chromium hexacarbonyl and nickel tetracarbonyl. The object of the work performed during the final month was to confirm the fact that the gas plating of chromium metal and chromium-nickel laminates free from nitrides, oxides and carbides was practical.
Date: June 5, 1953
Creator: Nack, Herman; Bulloff, Jack J. & Whitacre, John R.
Partner: UNT Libraries Government Documents Department
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