Technical Report Archive & Image Library (TRAIL) - 26 Matching Results

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Abrasive Cutting of Irradiated Uranium

Description: The preparation of radioactive metallurgical specimens for microscopic examination is one of the responsibilities of the Radiometallurgy Sub-Unit. An abrasive cut-off machine development program, based upon a previous experimental model, was undertaken to provide a method for sectioning of irradiated materials without undue personnel exposure or spread of contamination and finally to provide data for the design of an abrasive cutting unit for use in the work cells in the Radiometallurgy Buildinā€¦ more
Date: September 17, 1953
Creator: Boyd, Carl L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Creep of Zircaloy-2 Process Tubes

Description: The creep problems associated with zircaloy-2 process tubes and the factors affecting the creep of these tubes were discussed in detail. Emphasis was placed on the determination of the tube wall thickness for an SPR tube, whose minimum thickness is limited by creep considerations. It was concluded that, at the present time, there is not enough information available to design zircaloy-2 process tubes on a realistic basis. Various experiments were suggested to supplement the creep rate testing prā€¦ more
Date: September 17, 1956
Creator: Burgess, A. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radioactivity Levels of the Columbia River Below Richland, Washington for the Period April, May, June 1956

Description: In the Columbia River downstream from Richland, Washington there is a gradual decrease in concentration of radioactive isotope. At any one location there are fluctuations due to factors such as dilution and decay time. During this period at all locations the concentration of alpha particle emitters in water averaged below the detection limit. Beta particle emitters in water upstream of McNary Dam decreased slightly due to increased river flow this quarter, with averages at various locations. Doā€¦ more
Date: October 17, 1956
Creator: Clukey, H. V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quarterly Report Technology of Non-Production Reactor Fuels Reprocessing Budget Activity 2790

Description: This report summarizes the research and development work carried out during June, July, and August, 1959, for Budget Activity 2790- Separations Development for Non-Production Reactors. The effort on Activity 2790 - Separations Development for Non-Production Reactors. The effort on Activity 2790 will enable Hanford to begin reprocessing in January, 1962, the fuel elements from power reactors which employ depleted or slightly enriched uranium fuels.
Date: March 17, 1958
Creator: Cooper, V. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Kinetic Study of the Fluoride Catalyzed Nitric Acid Dissolution of Thorium Metal

Description: The penetration rates of thorium metal by boiling nitric acid were measured as a function of the concentration of fluoride catalyst and of nitric acid. Dissolved thorium and aluminum were found to inhibit the reaction. Thoris exhibited penetration rates much lower than those of thorium metal. In addition to the specific rate measurements, pot type batch dissolvings were carried out to estimate plant time cycles. An empirical mathematical equation was devised which correlates the results of thesā€¦ more
Date: November 17, 1955
Creator: Goodall, C. A.; Hepworth, J. L.; Moore, R. L. & Watts, Jr., R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Monitoring Thermal and Resonance Neutron Flux

Description: The monitoring of thermal and resonance neutron flux in a thermal reactor having high flux over periods of time from 1 to 12 months using think Co foils is considered. Special attention is paid to the many correction factors to be applied to the activation data; neutron temperature, effective cadmium cutoff energy, burnout of Co59 and Co60, and decay of Co60. Results on a homogeneity test of 10 mil, 0.08% Co-A1 alloy foils is given.
Date: August 17, 1953
Creator: Heineman, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fluorescent X-Ray Spectrography- A Recent Analytical Technique

Description: Because of the relative simplicity of the X-Ray spectra and recent improvements in instrumentation, analytical applications of X-Ray of spectrography are becoming very popular. The method us applicable to both qualitative and quantitative determinations of all elements heavier than sodium. Elements in multicomponent systems, such as alloys and minerals, and elements such as, W, Pt, Nb, Ta, Hf, Zr, and the rare earths, which are difficult to separate or determine by other methods, can usually beā€¦ more
Date: December 17, 1958
Creator: Lambert, M. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Steam Water Pressure Drop and Critical Discharge Flow - A Digital Computer Program

Description: It is the purpose of this report to explain the bands and uses of a digital computer program for the calculation of steady state steam-water pressure drop and critical flow in pipes. The program has been coded for the IBM 709 computer. While so attempt has been made to obtain improved models of two-phase flow, it is believed that the numerical integration technique used in the code will permit more accurate calculation where pressure drops are large compared to the upstream pressure. The techniā€¦ more
Date: June 17, 1960
Creator: Massena, W. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Program on the IBM 709 Digital Computer of the P3 Approximation to the Boltzmann Transports equation in Cylindrical Geometry

Description: In formulating this general diffusion theory expression which represents the neutron balance in a nuclear chain reactor the following assumptions were made : (1) the medium through which the neutrons are diffusing has a low neutron capture cross section, (2) the region in which the flux distribute is being described is two or three mean free paths from strong sources and sinks or from a boundary. Certainly, is going to the lattice cell of a receptor, both of the above conditions are violated; fā€¦ more
Date: June 17, 1959
Creator: Matsumoto, D. D. & Richey, C. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reamed Rear Face Parker Fitting

Description: A study and tests of the feasibility and best method of reaming rear face Parker fittings has been made. Flow increase of 8 percent, based on maintaining the same front header pressure, can be obtained at B, D, and F reactors by reaming the rear Parker fittings to .610 inch and using existing rear face hardware. Tests indicate mechanical strength will not be significantly reduced, high frequency vibration will not be increased, and that methods of reaming are available.
Date: March 17, 1960
Creator: McCarthy, P. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Division of Reactor Development Programs Monthly Report- July 1959

Description: Basic Studies. Sinterability studies on the isomorphous system UO2-PuO2 have continued. One-half inch diameter X 3/8'' long compacts containing physical mixtures of the two components have been heated in hydrogen. Sintered density as a function of time and temperature has been determined for times of one and eight hours up to 1600 C. In general, there seems to be minima on isothermal plots of density versus composition in the intermediate range 20-40 w/o PuO2. At concentrations greater than 40 ā€¦ more
Date: August 17, 1959
Creator: McEwen, L.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Aeolotropic Elastic Relations for Uranium Crystals

Description: Handwritten report. This theoretical introduction to the anisotropic elastic properties of the orthorombic [sic] uranium crystal presents certain basic ideas which are useful in the study of experimental methods for determining preferred orientations in polycrystalline bodies. The method of analysis used to determine the elastic constants suggests explanations and correlations for the observations of sonic wave experiments on bars having preferred orientations and also serves as an introductionā€¦ more
Date: December 17, 1954
Creator: Merckx, K. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of the Zircaloy-2 Creep Data with Two Extrapolation Methods

Description: The experimental evaluation of low (10ā»āø in/in/hr) creep rates are costly and time consuming. Thus, in answer to a request from the design group, the creep data on Zircaloy-2 obtained at Battelle Memorial Institute is extrapolated into the low creep rate range. Because the methods of extrapolation have not been evaluated at very low creep rates on Zircaloy, two different methods are used to analyze the creep data. The methods of extrapolation are given so that future analyses can be carried outā€¦ more
Date: April 17, 1956
Creator: Merckx, K. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reduction off Plutonium (VI) with Hydrogen Peroxides

Description: Hydrogen peroxide has been used to reduce plutonium (VI) in nitric acid solution to the (IV) valence state. However, reduction of plutonium (VI) solutions containing iron has often been incomplete when hydrogen peroxide was used as the reducing agent. Since reduction of plutonium (VI) has been applied in plant solutions containing iron, a study of the plutonium (VI) reduction with hydrogen peroxide was undertaken. Variables tested included plutonium, nitric acid, and iron concentrations.
Date: October 17, 1956
Creator: Myers, M. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Dual Channel Pulse Analyser and Count-Rate Meter for Gamma Spectrometer Monitor

Description: Describes the current prototype model of a linear amplifier, two-channel pulse-height analyser, two-channel count-rate meter, and count-rate difference detector for a gamma-ray spectrometer monitor developed to approach the above design criteria.
Date: June 17, 1954
Creator: Paul, R. S. & Wood, M. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Proposed Clean-Up System for Carbon Steel High Temperature Recirculation System

Description: It is the purpose of this document to outline a proposed addition to the previously considered clean-up systems as a possible solution for the maintenance of high purity water. A cyclone separator system has been devised in conjunction with the water clean-up of a high temperature recirculating reactor cooling system. By utilizing such a cyclone separator system, a high quality water can be obtained in a primary coolant system made up of carbon steel components without excessive clean-up costs.
Date: March 17, 1955
Creator: Pearl, W. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Description: The absorption of the important fission products by plants is quantitatively presented as a concentration factor which is defined as the ratio of the fission product concentration found in the leaves to the fission product concentration found in the nutrient substrate. Of the fission products, the isotopes of strontium were found to be the most important by virtue of their high concentration factor, long half-life, and low maximum permissible amounts for animals. Iodine and barium follow in imā€¦ more
Date: May 17, 1955
Creator: Rediske, J. H.; Cline, J. F. & Selders, A. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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"Crud" Scrubbing with a Purex-Type Zebra Cartridge

Description: Entrained solids have in the past been one of the major factors limiting solvent extraction fission product decontamination. These solids are known to be surface active, to absorb fission products, and to form interfacial films or "cruds". A major step in eliminating these cruds was taken when the Purex columns were modified to operate with the interfaces at the waste ends of the columns rather than the product ends. This type of operation tended to flush the solids out with the waste rather thā€¦ more
Date: October 17, 1961
Creator: Richardson, G. L
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calcium Uranium(IV) Fluoride; Precipitation and Reduction to Metal

Description: Using ferrous ion in the presence of fluoride for reducing uranium(VI) to the four state, the salt calcium uranium (IV) fluoride can be precipitated from uranyl nitrate solutions. X-ray studies have shown that the precipitate is a true double salt and not a mixture of the two insoluble fluorides of calcium and uranium. The salt settles rapidly and can be either filtered or centrifuged. Waste losses during precipitation and washing were on the order of 2.0 and 0.4 per cent, respectively. These wā€¦ more
Date: March 17, 1955
Creator: Tolley, W. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of Explosive Characteristics of Purex Solvent Decomposition Products (Red Oil)

Description: Abstract: "Laboratory production of an explosion between UNH and "red oil" under calcination conditions has been accomplished. Attempted production of a vapor phase explosion was unsuccessful below 150-160 C. Since such severe conditions are necessary to obtain an explosive reaction, it appears that present Purex plant design is adequate to avoid explosive conditions."
Date: March 17, 1953
Creator: Wagner, Robert M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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