Uranium in the Southern United States (open access)

Uranium in the Southern United States

From introduction: The purpose of this study was to compile information on and systematically assess uranium and other radioactive occurrences in the region.
Date: July 1, 1969
Creator: Southern Interstate Nuclear Board
Object Type: Report
System: The UNT Digital Library
Safety Evaluation of PNPF Modifications (open access)

Safety Evaluation of PNPF Modifications

"The purpose of this report is to examine the safety aspects of PNPF restart on continued operation, after completion of the core cleanup and system modifications."
Date: May 1, 1969
Creator: Huntsinger, M. & Hart, R. S.
Object Type: Report
System: The UNT Digital Library
Cosmic Ray Produced Ar37 and Ar39 Activities in Recently Fallen Meteorites (open access)

Cosmic Ray Produced Ar37 and Ar39 Activities in Recently Fallen Meteorites

Several methods of determining meteorite ages depend ages upon nuclides formed by cosmic ray interactions. The tactic assumption is always made that the intensity of cosmic radiation does not vary in time or space. However it is known that the intensity of cosmic radiation at the earth varies with the solar activity. The spectrum of cosmic ray protons and alpha particles exhibit a marked drop at the low energy end (<1.5 GeV) and the intensity in the region appears to follow the 11 year cycle of solar activity. The low energy cosmic rays increase in intensity with a decrease in solar activity. These changes in cosmic ray intensities are generally attributed to a modulation of the galactic cosmic radiation by the magnetic fields associated with the outward streaming solar material, the solar wind. One would therefore expect that the cosmic ray intensity several astronomical units from the sun is greater than the intensity at the earth's orbit, particularly at the low energy end of the spectrums.
Date: February 1, 1968
Creator: Davis, R. Jr.; Stoenner, R. W. & Schaeffer, O. A.
Object Type: Report
System: The UNT Digital Library
The Mg-MgCl2 System — A Chronopotentiometric Study (open access)

The Mg-MgCl2 System — A Chronopotentiometric Study

The mode of dissolution of magnesium in molten magnesium chloride contacted with Mg-Pb alloys was studied at 750°C using anodic chronopotentiometry. An inert tantalum anode was used to determine relative amounts of magnesium dissolved in its chloride as a function of magnesium activity in the alloy. According to the law of mass action a linear dependence of magnesium solubility on a Mg indicates Mg2Cl2 as the reaction product and a parabolic dependence indicates MgCl. It was found that the amount of magnesium dissolved in its chloride was directly proportional to the magnesium activity in the metal phase, i.e., a linear dependence, indicating Mg2Cl2 as the subhalide species. Due to the corrosive nature of the Mg-MgCl2 system a special apparatus was used so that only the inert metals tantalum and molybdenum came in contact with the melt. Purification procedures and conditions for proper equilibration and measurement were established and are reported. The basic equation of chronopotentiometry, [equation not transcribed], was found to hold and at given magnesium activities the product [unintelligible] did not vary with the current, indicating the validity of the analytical technique.
Date: February 1, 1968
Creator: Van Norman, John D. & Egan, James J.
Object Type: Report
System: The UNT Digital Library
Low Temperature Mechanical Properties Of Copper and Selected Copper Alloys: A Compilation From the Literature (open access)

Low Temperature Mechanical Properties Of Copper and Selected Copper Alloys: A Compilation From the Literature

From Abstract: "In the past 60 years considerable data have been accumulated concerning the mechanical properties of copper and its alloys.It was felt that there was great need to adequately document these results in one publication. Therefore a unique type of compilation is presented. The compilation is divided into four parts. The first section is intended for quick reference use for those who are interested in average values. The second section includes data from most of the investigators who have published results on the mechanical properties of copper and its alloys. The third section is composed of tables classifying the investigations which were not in section two. The fourth section section lists, in alphabetical order, all references used."
Date: December 1, 1967
Creator: Reed, Richard P. & Mikesell, Ritchie P.
Object Type: Report
System: The UNT Digital Library
Effects of Finite Lattice Heat Capacity on Spin Lattice Relaxation: Theory and Numerical Analysis (open access)

Effects of Finite Lattice Heat Capacity on Spin Lattice Relaxation: Theory and Numerical Analysis

Report discussing the transient magnetic behavior of a paramagnetic substance, after an initial disturbance, considered theoretically for a variety of situations in which the lattice temperature rises as a result of energy flow from the magnetic (electron spin) system. Next, the opposite extreme is considered - that in which the resonant and remaining modes are totally uncoupled. Finally, there is a consideration of the case of spins coupled only to the resonant phonons, which in turn are coupled to a constant temperature bath, whether this be the helium or the remaining modes.
Date: August 1, 1967
Creator: Peterson, Robert L.
Object Type: Report
System: The UNT Digital Library
Vertical-Tube Evaporator Pilot Plant Report, Volume 1, July 1, 1967 (open access)

Vertical-Tube Evaporator Pilot Plant Report, Volume 1, July 1, 1967

Report documenting the ongoing research and developments undertaken at a pilot plant with five vertical-tube evaporators.
Date: July 1, 1967
Creator: Oak Ridge National Laboratory
Object Type: Report
System: The UNT Digital Library
Variations in isotopic abundances of strontium, calcium, and argon and related topics (open access)

Variations in isotopic abundances of strontium, calcium, and argon and related topics

A report regarding variations in isotopic abundances of strontium, calcium, and argon and related topics
Date: December 1, 1966
Creator: Hurley P. M.; Fairbairn, H. W.; Pinson, W. H. Jr.; Mencher E.; Kolbe, P.; Rand, J. R. et al.
Object Type: Report
System: The UNT Digital Library
Heat Treatment and Properties of Iron and Steel (open access)

Heat Treatment and Properties of Iron and Steel

From Abstract: "This Monograph is a revision of the previous NBS Monograph 18. Its purpose is to provide an understanding of the heat treatment of iron and steels, principally to those unacquainted with this subject. The basic principles involved in the heat treatment of these materials are presented in simple form." From Introduction: "This Monograph has been prepared to answer such inquires and to give in simplified form a working knowledge of the basic theoretical and practical principles involved in the heat treatment of iron and steel."
Date: November 1, 1966
Creator: Digges, Thomas G.; Rosenberg, Samuel J. & Geil, Glenn W.
Object Type: Report
System: The UNT Digital Library
Radio Meteorology (open access)

Radio Meteorology

Report compiling the work done in radio meteorology over the past ten years at the National Bureau of Standards' Central Radio Propagation Laboratory (CRPL). There is an emphasis upon the effects of the lower atmosphere on the propagation of radio waves. The CRPL group has concentrated upon the refraction of radio waves as well as the refractive index structure of the lower atmosphere on both synoptic and climatic scales. Additional chapters on radio-meteorological parameters and the absorption of radio waves by the various constituents of the lower atmosphere.
Date: March 1, 1966
Creator: Bean, B. R. & Dutton, E. J.
Object Type: Report
System: The UNT Digital Library
Health and Safety Laboratory Fallout Program Quarterly Summary Report: June 1, 1965 - September 1, 1965 (open access)

Health and Safety Laboratory Fallout Program Quarterly Summary Report: June 1, 1965 - September 1, 1965

Report documenting radioactive fallout across the world, including material in the atmosphere, on land, and that has deposited into food and water supplies.
Date: October 1, 1965
Creator: Hardy, Edward P., Jr. & Rivera, Joseph
Object Type: Report
System: The UNT Digital Library
Health and Safety Laboratory Fallout Program Quarterly Summary Report: March 1, 1965 - June 1, 1965 (open access)

Health and Safety Laboratory Fallout Program Quarterly Summary Report: March 1, 1965 - June 1, 1965

Report that summarizes multiple laboratories' reports on global fallout deposition. Reports include data on Strontium-90 deposition recorded by the Health and Safety Laboratory, data from other laboratories, related interpretive reports, and recent publications related to fallout.
Date: July 1, 1965
Creator: Hardy, Edward P., Jr. & Rivera, Joseph
Object Type: Report
System: The UNT Digital Library
Carbon-14 Measurements in the Atmosphere - 1953 to 1964 (open access)

Carbon-14 Measurements in the Atmosphere - 1953 to 1964

Report regarding a program that measured carbon-14 that was released into the atmosphere above the United States via nuclear testing.
Date: April 1, 1965
Creator: U.S. Atomic Energy Commission. Health and Safety Laboratory.
Object Type: Report
System: The UNT Digital Library
Health and Safety Laboratory Fallout Program Quarterly Summary Report: December 1, 1964 - March 1, 1965 (open access)

Health and Safety Laboratory Fallout Program Quarterly Summary Report: December 1, 1964 - March 1, 1965

Report that summarizes multiple laboratories' reports on global fallout deposition. Reports include data on Strontium-90 deposition recorded by the Health and Safety Laboratory, data from other laboratories, related interpretive reports, and recent publications related to fallout.
Date: April 1, 1965
Creator: Hardy, Edward P., Jr. & Rivera, Joseph
Object Type: Report
System: The UNT Digital Library
Ionospheric Radio Propagation (open access)

Ionospheric Radio Propagation

From Preface: "The purpose of this book is to replace, in part, a previous publication of the National Bureau of Standards (Circular 462) with the same title. The scope of the present work has therefore been broadened to include aspects of ionospheric radio propagation which were not treated in earlier publication."
Date: April 1, 1965
Creator: Davies, Kenneth
Object Type: Report
System: The UNT Digital Library
Development of High-Temperature Electrical Ground Test Heaters for the SNAP 10A Program (open access)

Development of High-Temperature Electrical Ground Test Heaters for the SNAP 10A Program

Introduction: The development and qualification of the system acceptance test heaters and the reactor simulator heater are described in this progress report.
Date: March 1, 1965
Creator: Blevitt, R.; Paine, G. & Sudar, S.
Object Type: Report
System: The UNT Digital Library
Final Report: Investigation of Boiling Flow Regimes and Critical Heat Flux (open access)

Final Report: Investigation of Boiling Flow Regimes and Critical Heat Flux

From abstract: A program to investigate the mechanism of the critical heat flux condition from the standpoint of flow regimes has been initiated at Dynatech for the AEC. This report covers the work done on this investigation in the first year.
Date: March 1, 1965
Creator: Suo, M.; Bergles, Arthur E.; Doyle, Edward F.; Clawson, L. & Goldberg, P.
Object Type: Report
System: The UNT Digital Library
Application of Nuclear Power Plants (SNAP Units) to the Manned Orbiting Research Laboratory (MORL) (open access)

Application of Nuclear Power Plants (SNAP Units) to the Manned Orbiting Research Laboratory (MORL)

Abstract: This report describes in detail two designs of a nominal 6-kwe Nuclear Power Plant (NPP), one using thermoelectrics for power conversion and the other using the Mercury-Rankine cycle NPP.
Date: February 1, 1965
Creator: Botts, W. V.; Marko, M.; McCourt, P. E.; Keshishian, V.; Piccot, A. R. & Budney, G. S.
Object Type: Report
System: The UNT Digital Library
Final Design of Sodium-Heated, Modular, Steam Generators for the SCTI (open access)

Final Design of Sodium-Heated, Modular, Steam Generators for the SCTI

Abstract: The following report covers the final design of the modular steam generators.
Date: February 1, 1965
Creator: Casey, D. F.; Hammer, J. J.; Logan, D. & Williams, M. C.
Object Type: Report
System: The UNT Digital Library
Flux Control for Irradiation Experiments (open access)

Flux Control for Irradiation Experiments

Abstract: This report reviews various means which have been used to control experimental conditions in irradiation experiments, and presents the concept of local flux control.
Date: February 1, 1965
Creator: McCarty, W. K.
Object Type: Report
System: The UNT Digital Library
Irradiation Swelling, Phase Reversion, and Intergranular Cracking of U-10 wt % Mo Fuel Alloy (open access)

Irradiation Swelling, Phase Reversion, and Intergranular Cracking of U-10 wt % Mo Fuel Alloy

Abstract: A fuel development program has been conducted, to investigate the behavior of U-10 wt% Mo alloy at the fission rates and temperatures anticipated in Core I of the Hallam Nuclear Power Facility.
Date: February 1, 1965
Creator: Willard, R. M. & Schmitt, A. R.
Object Type: Report
System: The UNT Digital Library
The NAA 47 U - 10 Mo Fuel Irradiation Program for HNPF Core 1 (open access)

The NAA 47 U - 10 Mo Fuel Irradiation Program for HNPF Core 1

Abstract: Atomics International conducted a fuel irradiation program to investigate and define the behavior of U-10 Mo fuel at the temperatures and fission rates anticipated in Hallam Nuclear Power Facility (HNPF) Core I.
Date: February 1, 1965
Creator: Schmitt, A. R.; Willard, R. M. & Magnus, D. K.
Object Type: Report
System: The UNT Digital Library
Flight Data and Results of Radiochemical Analyses of Filter Samples Collected During 1961 and 1962 (open access)

Flight Data and Results of Radiochemical Analyses of Filter Samples Collected During 1961 and 1962

Report containing "flight data and (...) results of radiochemical analyses of stratospheric and tropospheric air filter samples collected during Project Star Dust. This report contains data for samples collected during June 1961 to December 1962, the first year and a half of the project" (p. 2).
Date: January 1, 1965
Creator: Feely, Herbert W.; Friend, James P.; Krey, Philip W. & Russell, Barbara A.
Object Type: Report
System: The UNT Digital Library
Health and Safety Laboratory Fallout Program Quarterly Summary Report: September 1, 1964 - December 1, 1964 (open access)

Health and Safety Laboratory Fallout Program Quarterly Summary Report: September 1, 1964 - December 1, 1964

Report that summarizes multiple laboratories' reports on global fallout deposition. Reports include data on Strontium-90 deposition recorded by the Health and Safety Laboratory, data from other laboratories, related interpretive reports, and recent publications related to fallout.
Date: January 1, 1965
Creator: Hardy, Edward P., Jr. & Rivera, Joseph
Object Type: Report
System: The UNT Digital Library