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Angular distribution of neutrons from a plane surface
From introduction: "This report determines lattice losses by considering the angular distribution of the neutrons emitted from the interior faces of the lattice and the exterior faces of the target. The purpose of this report is to investigate this problem by considering the dimensions of the faces to be large compared to the total mean free path."
Date:
1951
Creator:
Harker, Wesley H.
Object Type:
Report
System:
The UNT Digital Library
Annie Laurie Prospect, Santa Cruz County, Arizona
From introduction: The Annie Laurie 'cranium Prospect, in the Oro Blanco district of southern Arizona, is located in the southwest quarter of Sect. 3, T233, R=13. The nearest United States post office is Nogales, about 25 miles east, and the nearest settlement is Ruby, a nearly abandoned mining camp about 3 miles north. Access to the Ruby area is by gravel road from US highway 39 at Kinsley or Nogales. The Ruby quadrangle (1940) includes the area surrounding the prospect.
Date:
January 1951
Creator:
Wright, Robert J.
Object Type:
Report
System:
The UNT Digital Library
Calculated thermal conductivities of pure gases and gaseous mixtures at elevated temperatures
From summary: "A method of calculating thermal conductivities of gases and mixtures of gases at elevated temperatures is presented. Results for carbon dioxide, helium, neon, nitrogen, and their binary mixtures are given for the temperature range of 273 degrees Kelvin to 800 degrees Kelvin. The calculated results for the pure gases are in agreement with the known experimental data."
Date:
1951
Creator:
Wright, J. M.
Object Type:
Report
System:
The UNT Digital Library
The Chelate Process, IV. Process Flow Involving o-Dichlorobenzene as the Solvent for TTA
Comparative studies of a series of halogenated solvents, as carriers for TTA in the chelate process for plutonium extraction, indicate that ortho-dichlorobenzene most nearly satisfies the requirements that are set forth. A complete process design is presented for use with this solvent, and flow data and equipment capacities are given for dissolver solution and for uranium-free fission product solution as alternate feeds to the process.
Date:
January 1951
Creator:
Davis, M. W., Jr.; Hicks, T. E. & Vermeulen, T.
Object Type:
Report
System:
The UNT Digital Library
Chemical Research - Radiochemistry : Report for the Month Ending April 17, 1943
The following report is a record on radiochemical studies taken in the Metallurgical Laboratory during April of 1943.
Date:
1951
Creator:
United States. Office of Scientific Research and Development. Metallurgical Laboratory.
Object Type:
Report
System:
The UNT Digital Library
Chemistry Division Quarterly Progress Report for Period Ending December 31, 1950
Quarterly technical report including reports on chemistry of source, fissionable, and structural elements, nuclear chemistry, radio-organic chemistry, chemistry of separations processes, chemical physics, radiation chemistry, and instrumentation. [From Abstract]
Date:
1951
Creator:
Taylor, E. H.; Boyd, G. E. & Bredig, M. A.
Object Type:
Report
System:
The UNT Digital Library
The Determination of Zirconium
Abstract: "The method of Hayes and Jones, which uses p-dimethylaminoasophenylarsonic acid to precipitate zirconium, was studied for the range of one to seven micrograms of zirconium. The most strongly interfering ions, namely phosphate, fluoride, sulfate and the tetravalent cations of uranium, thorium and plutonium were studied. Two procedures are suggested."
Date:
1951
Creator:
Stehney, A. F. & Safranski, L. W.
Object Type:
Report
System:
The UNT Digital Library
The Development and Application of Capillary Absorption Cells
Abstract: "Various types of capillary absorption cells have been constructed from a variety of materials. These cells, having volumes as low as 160 microliters, have been used to increase the sensitivity of several colorimetrics methods as much as 1000 fold without appreciable loss of accuracy. Small volumes of solution must be used in order to concentrate the colored material present."
Date:
1951
Creator:
Rosenfels, R. S.; Kirk, P. L.; Kitson, R. E.; Patton, R. L. & Curtis, R. E.
Object Type:
Report
System:
The UNT Digital Library
Developments in the Centrifuge Separation Project
Preface: The results of the work undertaken at the University of Virginia, the research laboratory at Westinghouse, and the Standard Oil Development Co. are reported in Parts I, II, and III, respectively, of this volume.
Date:
1951
Creator:
Beams, Jesse W.; Hagg, A. C. & Murphree, E. V.
Object Type:
Report
System:
The UNT Digital Library
The Diffusion of Slow Neutrons in Absorbing Materials
The following report describes the process of diffusing slow neutrons in absorbing materials and possible situations where the process is needed.
Date:
1951
Creator:
Wigner, Eugene Paul, 1902-1995
Object Type:
Report
System:
The UNT Digital Library
A Discussion of the Fission Neutron Spectrum
The following report is based on the data of the energy spectrum of fission neutrons by Zinn and Sailard.
Date:
1951
Creator:
Bennett, W. E. & Richards, H. T.
Object Type:
Report
System:
The UNT Digital Library
The Effect of Reactor Irradiation on the Stress Strain Curve of Copper
The following report describes the method of a crystal of 99.99% pure copper grown under high vacuum and cut into two specimens used to test the effects of reactor irradiation on copper. Provided is a map of the results that show the difference between the unirradiated and irradiated copper samples through the process of stress strain.
Date:
1951
Creator:
Blewitt, T. H. & Coltman, R. R., Jr.
Object Type:
Report
System:
The UNT Digital Library
Fixed Frequency Cyclotron Theory
Report describing the results of the motion of an ion in a fixed frequency cyclotron that were obtained for the ORNL cyclotron.
Date:
1951
Creator:
Cohen, Bernard Leonard, 1924-
Object Type:
Report
System:
The UNT Digital Library
Great Lakes Carbon Corporation Research and Development Division Quarterly Report: July-September 1951
A report which aims to determine the ultimate purity of graphite attainable through repeated applications of the F process, to develop and improve purification processes through the use of such now purifying agents like CF4 and SF6, and to develop a simple purification process through the use of self-purifying raw materials or by purification of the raw materials prior to processing into graphite bars.
Date:
1951
Creator:
Great Lakes Carbon Corporation. Research and Development Division.
Object Type:
Report
System:
The UNT Digital Library
Great Lakes Carbon Corporation Research and Development Division Quarterly Report: October-December 1951
A report covering a directive which aims to complete three objectives: to develop an improved purification process through the use of such purifying agents such as CF4, SF6, and Cl2, to determine the ultimate purity of graphite attainable through repeated applications of the F process, and to develop a simplified purification process through the use of self-purifying raw materials or by purification of the raw materials prior to processing into graphite bars.
Date:
1951~
Creator:
Great Lakes Carbon Corporation. Research and Development Division.
Object Type:
Report
System:
The UNT Digital Library
Instantaneous Thermal Stresses and Temperatures in Unrestrained Flat Plates and Thin Walled Cylindrical Tubes
This report analyzes the instantaneous heating and is an extension of the work in CRD-T2B-47.
Date:
1951
Creator:
Mahlmeister, J. E.
Object Type:
Report
System:
The UNT Digital Library
The Isotopic Composition of Trace Quantities of Lead and Calcium
The following report discusses development of new micro-chemical and micro-mas spectrometric techniques for handling trace quantities of lead. The first two sections of this report summarizes the development and trial application to mineral separates of a granite rock. The third section summarizes similar techniques developed for the determination of calcium, and gives the results of an application of the technique to the determination of the radioactive decay constants of K-40.
Date:
1951
Creator:
Patterson, Claire
Object Type:
Report
System:
The UNT Digital Library
Laboratory Studies for Separation Processes
This report analyzes general methods for the contentration of isotopes called the dual-temperature process, which is essentially an engineering application of the fundamental principle that the equilibrium constant for various isotope exchange reactions varies with temperature.
Date:
1951
Creator:
Eidinoff, Maxwell L.
Object Type:
Report
System:
The UNT Digital Library
A Magnetically Controlled Quartz Fiber Microbalance
Abstract: "The design, simplified techniques of construction, and uses of an electromagnetically controlled quartz fiber microbalances are described. The balance is capable of weighing directly an unbalanced load as large as 1.2 milligrams, carrying a counter-balanced load of 100 to 150 milligrams, and giving a sensitivity of 0.1 microgram per 6 minutes of arc. The one-piece all-quartz balance unit fits into a 25 millimeter diameter tube 12 centimeters long. The balance may be used under wide conditions of temperature, pressure, and reagents in completely closed systems. The balance is controlled by an external variable electromagnetic field."
Date:
1951
Creator:
Edwards, Frank C. & Baldwin, Robert R.
Object Type:
Report
System:
The UNT Digital Library
Modification in the Peroxide-Colorimetric Method for Uranium Developed at the MIT Mineral Engineering Laboratory
The following report describes the use of a peroxide-colorimetric method for the determination of uranium in ores and ore products containing as little as 0.001 per cent U3O8 that was used at MIT from April, 1947, to September, 1948.
Date:
1951
Creator:
Kaufman, David & Galvenek, Paul, Jr.
Object Type:
Report
System:
The UNT Digital Library
The Production of the Light Rare Earths in the Massive Metallic State
This report discusses experiments that study 15 irradiated rats that were given B80 r at the same rate and used to study the fate of potassium following x-ray.
Date:
1951
Creator:
Spedding, F. H.; Wilhelm, Harley A. & Keller, W. H.
Object Type:
Report
System:
The UNT Digital Library
Progress Report For January 16, 1951 - March 15, 1951
A progress report on the results obtained, during the period, on ore samples from Grants, New Mexico, Maryvale, Utah, Hite, Utah, a fluorite deposit in Utah, and Rand ores. Also reported are results obtained with anion exchange resins in pulp, and systematic studies with anion exchange resins. Application of the lyometallurgical process to several ores and the use of an activated alumina column for purification of pregnant solvent solutions before precipitation are mentioned. Analytical developments pertaining to boron and aluminum analysis are reported.
Date:
1951
Creator:
American Cyanamid Company
Object Type:
Report
System:
The UNT Digital Library
Progress Report For March 16, 1951 - May 15, 1951
A progress report on investigations dealing with ores from Grants, New Mexico, Lukachukai Mountain District in Arizona, Belgian Congo, Thomas Mountain Range in Utah, and the Witwatersrand, South Africa. Anionic exchange resin studies such as resin in pulp, self elution with Rand leach liquors, adsorption of uranyl nitrate and uranyl perchlorate, adsorption of iron, manganese, cobalt, arsenic and molybdenum from sulfite solutions, adsorption or uranium from chloride bearing sulfate solutions are reported. Study of the sulfating step in the lyometallurgy process is reported.
Date:
1951
Creator:
American Cyanamid Company
Object Type:
Report
System:
The UNT Digital Library
Progress Report For September 16, 1951 - November 15, 1951
This project report covers leaching and precipitation work on uranium ore samples from the Belgian Congo, South Australia (Radium Hill), Temple Mountain (Utah) and Grants, New Mexico. Ion exchange studies on the effect of cobalt, thiocyanate, and polythionates in Rand liquors and resin life testing studies are noted. Ion exchange work with Climax Uranium leach liquors using 2 inch diameter columns is reported. Lyometallurgical studies with the effect of organo-phosphates on the extraction of uranium from Chattanooga shales.
Date:
1951
Creator:
American Cyanamid Company
Object Type:
Report
System:
The UNT Digital Library