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Li⁶ and Li⁷ (n. 2n) Cross Sections at 14.1 Mev
Abstract: "An absolute measurement of the 14.1-Mev (n, 2n) cross sections of Li-6 and Li-7 has been made using the large scintillator technique, resulting in cross sections in barns of 0.070 +/- 0.006 and 0.056 +/- 0.005 for Li-6 and Li-7, respectively."
Date:
May 29, 1958
Creator:
Ashby, V. J.; Catron, H. C.; Newkirk, Lester L.; Taylor, C. J. & Williamson, M. A.
Object Type:
Report
System:
The UNT Digital Library
Further Studies with the GCRE Critical-Assembly
This report follows ciritical-assembly studies on: the effect on reactivity caused by changes in axial reflector materials; the effect on reactivity and the power perturbation caused by fast safety control-blade guides; the effect of changes in fuel-element material composition; the effect of changes in fuel-elements spacing designed to produce uniform radial power-generation rates.
Date:
December 29, 1958
Creator:
Dingee, David A.; Ballowe, William C.; Egen, R. A.; Jankowski, Francis J. & Chastain, Joel W.
Object Type:
Report
System:
The UNT Digital Library
Neutron-Flux Measurements in a Concentric-Cylinder Fuel Element
The following report presents neutron-flux measurements made with a concentric-cylinder element (Mark II) and includes axial, radial, and peripheral flux distributions.
Date:
January 29, 1959
Creator:
Anno, James N.; Fairand, Barry P. & Chastain, Joel W., Jr.
Object Type:
Report
System:
The UNT Digital Library
Time Dependence of the Beam in the 86-Inch Cyclotron
In the preliminary stages of getting up a time-of-flight system for measuring neutron spectra from proton reactions, a study of the time dependence of the beam in the 86Inch Cyclotron was made. This study revealed the expected bunching of the protons to produce a short burst of beam on each cycle of the 13.4 Mc/s accelerating voltage. In addition to the 13.4 Mc/s structure, however, there was a 360 c/sec modulation of the beam pulses and a complicated pattern built upon that.
Date:
July 29, 1959
Creator:
Goodman, C. D.
Object Type:
Report
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Lincoln NTMS Quadrangle, Nebraska; Kansas
From abstract: Results of a reconnaissance geochemical survey of the Lincoln Quadrangle are reported. Field and laboratory data are presented for 577 groundwater and 754 stream sediment samples. Statistical and areal distributions of uranium and possible uranium-related variables are displayed. A generalized geologic map of the survey area is provided, and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed.
Date:
May 29, 1981
Creator:
Oak Ridge Gaseous Diffusion Plant
Object Type:
Report
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Douglas Quadrangle, Arizona; New Mexico
Abstract: Field and laboratory data are presented for 161 water samples and 235 sediment samples from the Douglas Quadrangle, Arizona; New Mexico. Uranium values have been reported by Los Alamos National Laboratory in Report GJBX-69(78). The samples were collected by Los Alamos National Laboratory; laboratory analysis and data reporting were performed by Uranium Resource Evaluation Project at Oak Ridge, Tennessee.
Date:
May 29, 1981
Creator:
National Uranium Resource Evaluation Program
Object Type:
Report
System:
The UNT Digital Library
Application of Dislocation Theory to Analysis of Vertical Displacements at the Ground Surface Caused by the Duryea Event
This report documents the use of the dislocation theory to analyze measured vertical displacements across a fault near the Duryea underground nuclear explosion.
Date:
January 29, 1968
Creator:
Brethauer, G. E.
Object Type:
Report
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Sherman NTMS Quadrangle, Texas; Oklahoma
Abstract: Results of a reconnaissance geochemical survey of the Sherman Quadrangle, Texas; Oklahoma are reported. Field and laboratory data are presented for 718 groundwater and 715 stream sediment samples. Statistical and areal distributions of uranium and possible uranium related variables are displayed. A generalized geologic map of the survey area is provided, and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed.
Date:
September 29, 1978
Creator:
National Uranium Resource Evaluation Program
Object Type:
Report
System:
The UNT Digital Library
Alpha Particle Detection and the A. C. Operated Detector "A" (Howler)
Abstract: This discussion concerns the operation, construction, and servicing of an alpha rate meter of medium sensitivity (30,000 alpha particles full scale per minute) and good stability. The instrument is equipped with an oscillator which increases both in frequency and loudness as the alpha activity is increased. The oscillator circuit includes an anticipator which causes a change in frequency depending directly upon the rate of change of alpha activity. Maximum sensitivity is approximately 100 millivolts full scale. Grid current varies from 1 to 5 x 10^-14 amperes. A general discussion of time constants and accuracy is included. Tables of stopping power, ionization and alpha activity are appended.
Date:
January 29, 1946
Creator:
Neil, Hugh G.
Object Type:
Report
System:
The UNT Digital Library
[Winnemucca Topographic Map, Nevada: Single Record Data Listings]
Data listings from the area surveyed in a report on Winnemucca in Nevada including single record reduced data listings.
Date:
September 29, 1978
Creator:
Geodata International
Object Type:
Dataset
System:
The UNT Digital Library
Water Quality of the Neuse River, North Carolina--Variability, Pollution loads, and long-term trends
From abstract: This report presents "a water-quality study of the Neuse River, based on data collected during 1956-77 at the U.S. Geological Survey stations at Clayton and Kinston, employs statistical trend analysis techniques that provide a framework for river-quality assessment." It includes maps, graphs, and tables.
Date:
February 29, 1980
Creator:
Harned, Douglas A.
Object Type:
Report
System:
The UNT Digital Library
Activation Energy for Fission
Abstract: The experimentally determined exponential dependence of spontaneous fission rate on Z^2/A has been used to derive an expression for the dependence of the fission activation energy on Z^2/A. This expression has been used to calculate the activation energy for slow neutron induced fission and photofission. The correlation with the experimental data on these types of fission seems to be quite good.
Date:
August 29, 1952
Creator:
Seaborg, Glenn T.
Object Type:
Report
System:
The UNT Digital Library
The Measurement of Air Flow Through High Efficiency Filters
Abstract. An inexpensive method for detection of dust-loaded high efficiency filters is described. Air flow is continuously indicated by elementary pitot tubes and plastic rotameters. Accuracy obtained is within +- 15%. Information as to construction, installation, and use is presented.
Date:
April 29, 1960
Creator:
Lindeken, C. L.; Montan, Donald N. & Beard, Edgar L.
Object Type:
Report
System:
The UNT Digital Library
The Action of Oxygen on Activated Charcoal
The following report provides information conducted with the purpose of ascertaining the effect of oxygen on activated charcoal at approximately one atmosphere by measuring the amount of CO2 formed over a known length of time.
Date:
June 29, 1951
Creator:
Bigelow, J. E.; Belaga, M. W. & Mulvihill, R. J.
Object Type:
Report
System:
The UNT Digital Library
The Ammonia Reduction and its Application to the Preparation of Green Salt
From introduction: The present report is a summary of the experimental work on a laboratory scale to date involving the ammonia reduction and the one step TF4 processes.
Date:
December 29, 1945
Creator:
Clinton Engineer Works
Object Type:
Report
System:
The UNT Digital Library
Materials Handbook : Part III - Low Tin Zirconium Alloys
"These notes are intended to serve as a summary of the current knowledge of properties of materials. In the future some need may exist for related information of methods of testing, design and fabrication. This issue presents information on low tin-zirconium alloys with subdivision..."
Date:
January 29, 1953
Creator:
Majors, Harry, Jr.; Webster, R. T.; Wendell, G. E. & Wallace, R. H.
Object Type:
Report
System:
The UNT Digital Library
Effects of Receiver Slots on Quantity and Quality of Product and Recycle
Abstract: "Variations in receiver slot design produce changes in quantity and quality of product and recycle, not only instantaneously, but also as a function of time in approaching equilibrium. The case of fixed feed concentration and fixed inventory of Uranium is described here for standard and Dip-Lip wider R slot receivers. The effects of the two types of receivers on recycle and product X and W concentrations, X production rate, plant X utilization efficiency, integrated X production and effective mass output are shown graphically."
Date:
May 29, 1947
Creator:
Harmatz, Benjamin
Object Type:
Report
System:
The UNT Digital Library
Summary of an investigation of vanadium and uranium occurrence in Huerfano Park district, Raton Basin area, Huerfano and Costilla counties, Colorado
A report on the SOM-vanadium occurrences of the Huerfano Park District.
Date:
September 29, 1943
Creator:
Emerson, John F.
Object Type:
Report
System:
The UNT Digital Library
Decontamination of buildings used for processing alpha emitters
A report regarding many uranium production plants constructed during the existing emergencies and pressures of World War II that were not intended to be permanent instillations. These plants either contractor or government owned, with buildings on the most part belonging to the contactor and a major portion of the processing equipment belonging to the government, became outmoded with the development
Date:
April 29, 1954
Creator:
Klevin, Paul B.; Harris, W. B. & Blatz, Hanson I.
Object Type:
Report
System:
The UNT Digital Library
Corrosion Status: Sulfex-Thorex (Ni-o-nel) and Darex-Thorex (Titanium) as of June 12, 1959
Either system appears to be fairly satisfactory from a containment standpoint. Current results indicate probable over-all rates of about 0.2mils/mo for titanium vs. 1.5-3.0 mils/mo for Ni-o-nel. Tests are not 100% comparable due to changes made in flowsheet conditions, but have been of sufficient variation and length as to allow good predictions to be made. Both metals show some tendency toward local attack in Thorex solutions. These tendencies are increased by poor welding techniques.
Date:
June 29, 1959
Creator:
Clark, W. E.
Object Type:
Report
System:
The UNT Digital Library
Uranium Anion Exchange Equilibria on Dowex 21K
Equilibrium loading of uranium on Dowex 21K has been studied in a sulfate system for uranium concentrations from 0.0005 M to 0.0005 M, total sulfate concentrations of 0.45 M to 0.6M, and sulfuric acid concentration of 0.020 M. Loading data have been fitted to Langmuir adsorption isotherms and Langmuir constants have been evaluated. Resin was equilibrated with uranium feed solutions by flowing the feed through a shallow fixed bed of resin.
Date:
June 29, 1959
Creator:
Dunn, W. E.
Object Type:
Report
System:
The UNT Digital Library
Darex Pilot Plant Studies
The Atomic Energy Commission has assigned the Hanford Atomic Products Operation the responsibility of providing the technology and facilities for the interim reprocessing of slightly enriched uranium fuels discharged from power and propulsion reactors. The fuel from the various reactors vary greatly in physical dimensions and in the composition of the core and cladding. For the purposes of chemical reprocessing, the fuels may be divided into the three main categories of aluminum, Zircaloy or stainless steel clad elements. The fuels may be sub-divided by the nature of the core material; e.g. metallic uranium, uranium dioxide, uranium-molybdenum alloys uranium-aluminum alloys, etc.
Date:
October 29, 1959
Creator:
Shefcik, J. J.
Object Type:
Report
System:
The UNT Digital Library
Effect of the PRTR High Pressure Loop on Plutonium Recycle Program Objectives
For purposes of an earlier consideration of the effects of in-reactor test loops on PRTR operation and program, the design of the high pressure, H20 cooled fuel test loop was assumed to be similar to that for the high pressure, gas cooled loop. Detailed design criteria for the H20 loop have recently been completed so that this assumption is no longer necessary. Therefore, to insure that the effects of all proposed in-reactor loops are fully evaluated with respect to Plutonium Recycle Program objectives, the present study has been carried out. Much of the qualitive discussion in the original analysis is still considered valid. Thus, rather than repeating the entire analysis as it pertains to the H20 loop, only those departures resulting from differences between the assumed design and the scope design are presented.
Date:
October 29, 1959
Creator:
Peterson, R. E.
Object Type:
Report
System:
The UNT Digital Library
Lawrence Radiation Laboratory Medical and Health Physics Quarterly Report: April - June 1954
The following quarterly report covers the period between April, May and June of 1954. The reports presented in this document discusses subjects of medical health and physics such as: biological studies of radiation effects, the metabolic properties of various tracer materials, radiation chemistry, health chemistry, and health physics.
Date:
July 29, 1954
Creator:
Lawrence Radiation Laboratory
Object Type:
Report
System:
The UNT Digital Library