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Hyperfragments produced by K^o mesons from K^+ charge exchange

Description: "Stacks of C-2 emulsion were exposed to neutral k mesons. These were produced by the charge exchange, in dense material, of K^+ mesons from the Berkeley Bovatron. Hyperfragments were found in these stacks. It is concluded that the hyperfragments were produced by K^o2 mesons in the K^o mode. These were generated by the decay of the K^o1 component of the K^o beam as would be expected from the Gell-Man Pais scheme. Other possible mechanisms of production of the hyperfragments have been considered … more
Date: unknown
Creator: Baldo-Ceolin, M.; Huzita, H.; Natali, S.; Camerini, U. & Fry, W. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrosion Resistant Brazing Alloys for Zircaloy

Description: "More than 80 experimental alloys and a few commercial alloys were used to prepare brazements of simple design for exposure in an autoclave to 600 or 680 deg F water. Alloys studied include alloys of Cu, Al, Ni, and Zr."
Date: unknown
Creator: Metals Research Department
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrosion Resistant Brazing Alloys for Zircaloy

Description: "This is a progress report covering the first year of work on ARF Project B 080, "Corrosion Resistant Brazing Alloys for zircaloy". the objective of the work reported is the development of filler metals suitable for the brazing of zirconium base alloys in cases where the service environment of the brazement is to be high temperature water. The experimental approach has been necessarily a somewhat empirical one. During this first year of work some forty experiments of simple design for corrosion… more
Date: unknown
Creator: Metals Research Department
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Critical Mass and Neutron Flux Distribution

Description: "Critical mass calculations for a reactor are given. The numerical calculations are shown for fission product poisoning, heavy element formation, temperature coefficient of reactivity and average neutron fiux distribution."
Date: unknown
Creator: Ford Instrument Company, Division of Sperry Road Corporation
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Armour Dust Fueled Reactor (Adfr)

Description: "Study of the ADFR concept included experimental work on fuel dust suspension stability and redispersibility, erosion, and dust deposition using the fuel dust circulation loop. Some theoretical work was done in the areas of reactor safety and breeding."
Date: unknown
Creator: Loewe, W. E. & Krucoff, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An Investigation of Scaling of Zirconium at Elevated Temperatures

Description: "Single crystals of iodide zirconium were oxidized to determine any lattice relationship existing between zirconium and the oxide overlay, and a review of experimental data and proposed theories to explain the oxidation behavior of zirconium was made. A method of measuring the rate and depth of gas diffusion in alpha zirconium was devised, and calculations were made for the temperature range 900 to 1200 deg C using samples scaled in air, oxygen, and nitrogen. The consumption rates at lower temp… more
Date: unknown
Creator: Probst, H. B.; Evans, E. B. & Baldwin, W. H. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Armour Dust Fueled Reactor (ADFR)

Description: "Work has begun on the ADFR, a reactor using a new fuel form -- fissionable dust carried in an inent gas. Temperatures in the range 2,000 to 3,000 deg F appear feasible in an all-ceramic system. Experimental study of the fuel form was initiated, and a loop to circulate the fuel dust was constructed. Initial operation is encouraging. Theoretical studies were carried on in the areas of reactor physics, heat transfer, and safety."
Date: unknown
Creator: Krucoff, D. & Loewe, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Rapid Reading of Large Binary Scales

Description: "A chart is presented for use in the rapid conversion of octal to decimal numbers. Tabulated data compare the decimal and octal systems, and decimal and binary numbers up to 19/sub 10/ = 10,011/sub 2/. Application of the data in reading scaling circuits is discussed."
Date: unknown
Creator: Anderson, Ernest C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Alternating Current Polarography: Evaluation of the Accuracy of the Data and Calculation Procedures

Description: "The data obtained by a-c polarography, when used to determine electrode parameters such as heterogeneous rate constant and when used as an analytical tool, are evaluated. Certain aspects of the experimental approach both in measurement and calculation are reviewed. The importance and means of correcting for the series resistance of the cell system itself and of using equations which take into account the phase differences between the faradaic and capacitive currents are developed. Other topics… more
Date: unknown
Creator: Bauer, Henry H. & Elving, Philip J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Feasibility Study of Superflux Reactor

Description: "The feasibility of a three-region aqueous homogeneous reactor designed to produce a maximum thermal flux at the center of 10/sup 16/ n/cm/sup 2/ -sec is investigated. Inner and outer regions of pure D/sub 2/O and an intermediate region of uranyl sulfate in D/sub 2/O are considered. Characteristics were calculated for the case R/sub 1/ = 40 cm, R/sub 2/ = 60 cm, and R/sub 3/ = 150 cm."
Date: unknown
Creator: Bolger, J. C.; D'Urso, S. F. & Mask, R. O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Engineering Report

Description: "An evaporator system was developed and tested which will concentrate two types of non-radioactive wastes. The wastes were of the slurry type within initial concentration of 32% solids and a final concentration of 7O% solids by weight. Information concerning design practices for this type of evaporator, startup and operating procedures, methods of recovery from unexpected shutdown, and procedures for descaling was gained. The test waste was synthetic and not radioactive; however, the procedures… more
Date: unknown
Creator: Carnavos, Theodore C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Technical Report No. 3

Description: "Work towards the preparation of pure alkali halides is described. It was found that zone refining is an effective technique for the refinement of KCl. Four zone passed through one specimen of Harshaw KCl decreased its low- temperature conductivity by a factor of six. Kyropulos apparatus has been constructed to grow large single crystals in controlled atmospheres. It operates satisfactory in ambient atmospheres, but because of the high volatility of KCl at its melting point the viewing windows … more
Date: unknown
Creator: Anderson, Scott
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Correlation of Polarographic Walf-Wave Potentials With Nuclear Magnetic Resonance "Chemical Shifts"

Description: "Since nuclear magnetic resonance ''chemical shifts'' are considered to be good measures of electron densities in molecules, the extent to which they can be correlated with the polarographic half-wave potentials of organic compounds has been surveyed. To extend the applicability and interpretation of the proposed correlation, parallel correlation of E, with Hammett's sigma and Taft's sigma parameters were made, since both of the latter are also regarded as indication of electronic distribution … more
Date: unknown
Creator: Bennett, Eugene C. & Elving, Philip J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Polarographic Reduction of Uranium (VI)

Description: "Previous studies of the effect of uranium species on the polarographic behavior of certain organic compounds indicated the advisability of further study of uranium itself. The polarographic reduction of U(VI) to U(V) in acid solution is very sensitive to both type and concentration of anion present. Consequently, the reduction was studied using perchlorate as a non-complexing anion and sulfate as a complexing anion. In HCLO4 solution, increasing the perchlorate concentration shifted E(1/2) to … more
Date: unknown
Creator: Elving, Philip J. & Krivis, Alan F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Temperature and Phase Effects on the Photolysis of Ethyl Iodide

Description: "The elementary steps in the photolysis of liquid ethyl iodide by light of wavelength 2537 A by determining initial rates of iodine production in the presence of added iodine and hydrogen iodide were analyzed at 25 and --70 d C to get information on the activation energies of competing elementary reactions. Investigations were also made of the effects of additives on the photolysis of glassy ethyl iodide at --180 d C, and evidence for the formation of trapped radicals during photolysis and radi… more
Date: unknown
Creator: Luebbe, Ray H. Jr. & Willard, John E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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On the Calculation of Properties of Gases at High Temperatures

Description: "The role of the potential of intermolecular force in determining properties of gases at elevated temperatures is discussed. Coefficients of viscosity and self diffusion, isotopic reduced thermal diffusion ratios, and second virial coefficients for helium, argon, and nitrogen at 1,000, 5,000, and 15,000 d K were calculated from extrapolated potentials and from beam potentials."
Date: unknown
Creator: Amdur, I. & Ross, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Progress Report No. XXIII

Description: "Progress is briefly reported on studies in dielectric spectroscopy, magnetic resonance, high-field-strength research, ferroelectrics and ferromagnetics, semiconductors, single crystals, and ceramics."
Date: unknown
Creator: Laboratory for Insulation Research, Massachusetts Institute of Technology
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Upper Atmosphere Monitoring Program

Description: "An apparatus designed to test aerosol filter efficiency at pressures equal to or less than atmospheric and at linear face velocities of 5 to 1000 ft/ min is described. Aerosol collection efficiency studies were completed for IPC paper at 20,000 and 40,000 ft. Data developed in these studies indicate that ia the impaction and diffusion regions collection efficiency increases with altitude for all linear face velocities less than 800 ft/min. A propeller-type flowmeter, calibrated to measure the … more
Date: unknown
Creator: Stern, Sidney; Jones, Sam; Schekman, Al & Stuart, Robley
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Resin Attrition

Description: "Uranium metal is produced by the bomb reduction of UF/sub 4/ with Mg. The slag from this reduction contains appreciable quantities of U, either in the metallic or the tetrafluoride form, in addition to the MgF/sub 2/. A process for recovering low enrichment U from this slag has gone into operation. A study of the causes of resin attrition and their relative magnitude both from an over-all point of view and with specific reference to the Higgins' Column and Dowex 21K resin is presented. Equipme… more
Date: unknown
Creator: Seiler, G. R.; Ammann, P. R. & Newey, A. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Sodium-Cooled, D2O-Moderated Rector (SDR)

Description: "For presentation at the 1958 Nuclear Congress, Nuclear Science and Engineering Conference, March 17The experimental program was focused on the problems of containing the Na, of providing a barrier material with low neutron absorption cross section and an ability to withstand the action of hot Na, of developing an arrangement of this material which is mechanically adequate, and of demonstrating that an integrated barrier system can be safety operated under reactor temperature and pressure condi… more
Date: unknown
Creator: Goldmann, Kurt & Leeper, Charles K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Final Stress Analysis of FHR Seed I Core I

Description: "The structural analysis of the PWR Core 1 Seed 1 under prescribed thermal and mechanical loading with the object of predicting the structural reliability of the seed during actual service is described. Static and fatigue tests performed on fusion-welded Zircaloy specimens are described, and the results of these tests are incorporated in the reliability study. The applied stresses in the seed during operation of the reactor are quite low except at the end welds. Here, based upon the test data, … more
Date: unknown
Creator: Mark, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Annual Report ONR Project A-2049

Description: "The objective of this program is to conduct a broad basic program of analytical and experimental research into the fundamental behavior of gas- lubricated bearings and to establish general design criteria for these bearings. The work to date has included both theoretical and experimental phases of hydrodynamic and hydrostatic lubrication phenomena, supplemented by a digital computer program."
Date: unknown
Creator: Fuller, Dudley D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Influence of the Molecular Mean Free Path on the Performance of Hydrodynamic Gas Lubricated Bearings

Description: "A modified Reynolds equation is derived for gaslubricated hydrodynamic bearings operating under ''slip flow'' conditions. Closed analytical solutions are given for a Rayleigh-type step-bearing and an inclined plane slider bearing for the case of two-dimensional flow. The influence of the molecular mean free path on the performance of bearings of arbitrary form is obtained by means of a small parameter, perturbation technique"
Date: unknown
Creator: Burgdorfer, Albert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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