Search Results

open access

Development of a Thermionic Reactor Space Power System: Summary Report for Period, March 1 1972 - June 30, 1972

Description: Report discussing significant accomplishments during a four-month period regarding the development of a thermionic reactor for a nuclear space power system. This report discusses the development of a thermionic reactor including materials technology, thermionic fuel element development, reactor technology, and systems technology.
Date: January 5, 1973
Creator: Gulf General Atomic Incorporated
Partner: UNT Libraries Government Documents Department
open access

Report - High Resolution Detection Of Radiation

Description: The principal function of this project has been the investigation and development of new methods of detecting radioisotopes so as to take advantage of the inherently high resolution of the emitting system itself. In last years report a new method known as wet process autoradiography was described. This report covering activity in 1951 has 3 divisions: autoradiography, instrumentation and application.
Date: January 1952
Creator: Gomberg, H.J. (Henry Jacob), 1918-1995
Partner: UNT Libraries Government Documents Department
open access

A Stable Numerical Solution For Transient Heat Flow

Description: An implicit finite difference formula for the numerical integration of the heat conduction equation is described. It is shown to offer considerable saving in computing time compared to previously used methods for some types of problems.
Date: January 15, 1953
Creator: Leppert, George
Partner: UNT Libraries Government Documents Department
open access

The Circular Polarization of Gamma Radiation Following Allowed Beta Transitions

Description: The degree of circular polarization of gamma rays following allowed beta transitions was investigated as a function of the angle THETA /sub beta gamma / between beta-particle momentum and gamma direction and as a function of the energy of the beta particle. The anisotropy of the beta-gamma circular polarization correlation observed for pure Gamow-Teller transitions ( DELTA 1 = 1) is used to determine the validity of C/sub A/' = C/sub A/. The experimental results for Co/sup 60/ and Na/sup 22/ ar… more
Date: January 1959
Creator: Steffen, R. M. (Rolf M.), 1922-
Partner: UNT Libraries Government Documents Department
open access

Bibliography on Respirators

Description: A bibliography containing over 200 references to periodical and patent literature is presented.
Date: January 7, 1958
Creator: Riese, Gretchen R. & Hendrickson, Ruth M.
Partner: UNT Libraries Government Documents Department
open access

Bibliography on the Toxicology of Beryllium

Description: The references in this bibliography were taken from: Index Medicus, January 1942-June1954; Current List of Medical Literature, July 1954-November 1956; Nuclear Science Abstracts, July 1948-December 1956. References ae arranges in chronological order beginning with the most recent,
Date: January 2, 1957
Creator: Riese, Gretchen R.
Partner: UNT Libraries Government Documents Department
open access

Scavenging of Particulate Matter in Connection with Nuclear-Powered Ships. Report No. 1 (Scientific Report). Theoretical Dissertation on Diffusion and Deposition of Radioactive Particulate Matters in Connection with Nuclear Powered Ships. Appendix B. Graphs of Shape Variables as a Function of Diffusion Parameters and Velocity of Deposition

Description: The behavior of the cloud formed by finely divided radioactive matter released from a nuclear-powered ship is discussed. Sutton's equation, with Chamberlain's correction for deposition, is used for four sets of parameters. The results calculated by using the IBM-650 computer are presented in a series of 76 graphs. Wind velocities of 5, 10, and 15 mph and velocities of deposition equal to 0, 1, 2, 5, 10, and 20 cm/sec were used in computation. The ranges of the B/C and Q/R parameters are 10/sup … more
Date: January 24, 1958
Creator: Rosinski, John
Partner: UNT Libraries Government Documents Department
open access

Scavenging of Particulate Matter in Connection with Nuclear-Powered Ships. Report No. 1 (Scientific Report). Theoretical Dissertation on Diffusion and Deposition of Radioactive Particulate Matters in Connection with Nuclear Powered Ships

Description: The behavior of the cloud formed by finely divided radioactive matter released from a nuclear-powered ship is discussed. Sutton's equation, with Chamberlain's correction for deposition, is used for four sets of parameters. The results calculated by using the IBM-650 computer are presented in a series of 76 graphs. Wind velocities of 5, 10, and 15 mph and velocities of deposition equal to 0, 1, 2, 5, 10, and 20 cm/sec were used in computation. The ranges of the B/C and Q/R parameters are 10/sup … more
Date: January 24, 1958
Creator: Rosinski, John
Partner: UNT Libraries Government Documents Department
open access

Results of Measurements of Physical Properties of Plutonium Metal

Description: The electrical resistivity, thermal conductivity, magnetic susceptibility, and specific heat of plutonium were investigated. Negative results were obtained in a check for superconductivity. (J.R.D.)
Date: January 1958
Creator: Sandenaw, Thomas A.
Partner: UNT Libraries Government Documents Department
open access

Radioactive Waste Disposal Management at the National Reactor Testing Station

Description: Waste disposal at the National Reactor Testing Station is described. A general description of the terrain and climate is given including such factors as wind behavior and geological formations. Disposal of low-level liquid waste is discussed, and data on amounts of radioactivity released are listed. Also, descriptions of radioactive waste disposal to the atmosphere and solid disposal are given. A cost summary for disposal is included as well as maps and diagrams. (J.R.D.)
Date: January 1959
Creator: Horan, John R.
Partner: UNT Libraries Government Documents Department
open access

A Null Balance X-Ray Absorption Instrument for Chemical Process Monitoring

Description: The object of this investigation was to design and build an x-ray absorption instrument for measuring heavy element concentration in liquid streams. A detailed description of the instrument along with its sensitivity is given. (W.L.H.)
Date: January 1959
Creator: Dozer, Bill Everett
Partner: UNT Libraries Government Documents Department
open access

The Formation of Detonation in Saturated Mixtures of Knallgas-Steam and in Stoichiometric Mixtures of Deuterium-Oxides (Heavy Knallgas) when Saturated with Deuterium Oxide (Heavy Water). Final Report

Description: The purpose of this investigation was to determine the reaction characteristics of saturated mixtures of knall gas (stoichiometric mixture of hydrogen and oxygen) --steam and mixtures of heavy knall gas (stoichiometric mixture of deuteron and oxygen) saturated with heavy water. These mixtures were studied experimentally over composition ranges from no reaction limit to enriched compositions which supported detonations. (auth)
Date: January 23, 1959
Creator: Luker, James A.; Adler, Leonard B. & Hobaica, Edward C.
Partner: UNT Libraries Government Documents Department
open access

Technical Progress Report

Description: Progress is reported on high-speed computer development, mathematical methods, switching circuit theory, and ILLIAC use and operation- -general laboratory information.
Date: January 1959
Creator: Digital Computer Laboratory, University of Illinois Graduate College
Partner: UNT Libraries Government Documents Department
open access

Quantitative Determination of Adsorbed Sulfates on Thoria by Means of Infrared Spectroscopy

Description: By utilizing the KBr-disk technique it is possible to apply infrared analysis quantitatively to the determination of species adsorbed from aqueous solutions on solids of large specific area. In this study, adsorption of sulfates on thoria from aqueous sulfate solutions have a characteristic infrared spectrum with absorbance bands occurring at 8.4, 8.9, and 9.6 microns. Absorbance measurements at these wave lengths were precise to 1-2% and were directly proportional to the amount of adsorbed sul… more
Date: January 1959
Creator: Tensmeyer, Lowell G. & Wadsworth, Milton E.
Partner: UNT Libraries Government Documents Department
open access

Observations on the Method of Hess for Determining Precision Lattice Measurements

Description: The method of Hess for determining lattice parameters and their standard errors from x-ray powder diffraction films was investigated. The equations are applicable to various cameras and crystal systems. The results of a series or computations in which the initial approximations were deliberately varied over wide that for the computation of precise lattice parameters, the initial estimates need not be good. A parameter input value of zero should be avoided, but otherwise almost any value will do… more
Date: January 1959
Creator: Eick, H A;
Partner: UNT Libraries Government Documents Department
open access

Determination of the Zr Corner of the Zr-Fe-Sn System at 0.1 and 0.2% Oxygen Levels. Final Report for December 5, 1957 - December 5, 1958

Description: This program was undertaken to supply fundamental information on the effect of adding 0.1 or 0.2% oxygen on the phase relationships in the Zr-Fe-Sn system in a limited range of dilute alloys. It is of both theoretical and practical interest to learn that oxygen stabilizes not only the g-phase in zirconium but also two intermetallic compounds ZrFe2 and the G-phase, which, chemically, appears to be Zr4Sn with about 8% Fe replacing zirconium, is shown to be stable at 1010 C, and probably also at 1… more
Date: January 21, 1959
Creator: Lillie, C. Robert
Partner: UNT Libraries Government Documents Department
open access

Gas Scattering Loss in the Electron Analog

Description: The formula for gas scattering losses in proton synchrotrons have to be modified for machines such as our proposed electron analog in three ways: (1) Since the vertical and horizontal apertures are equal, horizontal as well as vertical scattering can result in particle loss; (2) Since we are dealing with electrons of rather low momentum, the angles involved in single scattering events are much larger than in proton synchrotrons, and the probability of losing the beam by single scattering is app… more
Date: January 5, 1954
Creator: Courant, E. D.
Partner: UNT Libraries Government Documents Department
open access

Radiation Chemistry of Organic Substances. Final Report for 1 January 1957 to 31 January 1959

Description: The chemical processing of reactor fuels involves the use of organic substances as extracting agents and as diluents. When most organic substances ae exposed to reactor fuel, radiation damage occurs. The objectives of this project were to provide more information regarding damage to hydrocarbon solvents which are similar to those used as solvents in the Thorex program and to determine if the radiation-damaged diluent has a pronounced deleterious effect upon the extraction process.
Date: January 31, 1959
Creator: Knight, James A., Jr.
Partner: UNT Libraries Government Documents Department
open access

The Pebble Bed Reactor Program : Summary of the First Capsule Irradiation

Description: An irradiation program was conducted during the past 5 months which had the primary objective of determining the structural integrity of various types of uranium graphite fuel elements that could b e used in a Pebble Bed Reactor.
Date: January 14, 1959
Partner: UNT Libraries Government Documents Department
open access

Radiation Stability of Organic Liquids. Semi-Annual Report No. 4 for 1 July to 31 December 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 current study is concerned with (1) evaluation and examination of new and more efficient methods for economic removal deleterious radiolysis products from irradiated extractant systems., (2) methods of reducing the amount of radiolytic damage by use of additives which exert a protective effect on the… more
Date: January 5, 1959
Creator: Wagner, R. M. & Towle, L. H.
Partner: UNT Libraries Government Documents Department
open access

Radiation Stability of Organic Liquids. Semi-Annual Report No. 2 for 1 July to 31 December 1957

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 current study is concerned with the (1) identification of the gaseous and liquid radiolysis products of tributyl phosphate, (2) the effects of such products upon uranium extractions and stripping efficiencies and thus on the efficiency of the Purex process for uranium and plutonium recovery.
Date: January 14, 1958
Creator: Wagner, R. M.
Partner: UNT Libraries Government Documents Department
open access

The Dielectric Tube Resonator : a Slow-Wave, Open Boundary, Dielectric Resonator for the Generation and Measurement of Millimeter and Sub-Millimeter Wavelength Electromagnetic Radiation. Technical Report No. 2

Description: The yet unsolved submillimeter wavelength problem, namely, providing a source of high-power, coherent, monochromatic signal frequencies in the region 300 to 3000 kmc/s, together with suitable measuring techniques and devices, is considered. The dielectric tube resonator is proposed to deal with this problem. It consists of a hollow, circularly cylindrical tube of dielectric material suitably terminated at its ends by sufficiently large metal end walls and constitutes a slow-wave, open-boundary,… more
Date: January 23, 1959
Creator: Becker, R C
Partner: UNT Libraries Government Documents Department
open access

Dispersion in Tidal Estuaries

Description: A number of experiments were conducted at Northwestern University with methylene blue tracer to study the influence on the diffusion process of the periodic variations of flow which are characteristic of tidal estuaries. The oscillatory movement of pollutant was also closely studied with an instantaneous injection of radioactive tritium water in the model of the Savannah Harbor. (W.D.M.)
Date: January 1, 1959
Creator: Huiswaard, P. J.; Banks, R. B. & Bell, C G. Jr,
Partner: UNT Libraries Government Documents Department
open access

Dispersion of Fluid Flow in Porous Media

Description: This technical report presents the results of an investigation concerned with the phenomenon of dispersion in porous media flow. In the work, major emphasis has been placed on the problem of one-dimensional, longitudinal flow in porous media, from both theoretical and experimental viewpoints. To date, only limited work has been done on the corresponding radial flow problem. The governing differential equation for the dispersion of a fluid transporting a solute as it flows through porous media c… more
Date: January 1, 1959
Creator: Ogata, Akio, 1927- & Banks, R. B.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen