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Uranium Hydrogeochemical and Stream Sediment Reconnaissance of the Dubois NTMS quadrangle, Idaho/Montana, Including Concentrations of Forty-Five Additional Elements

Description: This report presents uranium and other elemental data resulting from the Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) of the Dubois NTMS quadrangle in Idaho and Montana. Totals of 1024 water samples and 1600 sediment samples were collected from 1669 locations in the Dubois quadrangle. Water samples were taken at streams, springs, and wells; sediment samples were collected from streams and springs.
Date: August 1980
Creator: LaDelfe, Carol M.
Partner: UNT Libraries Government Documents Department

Thermal Analysis of Type 3 Elements in the SM-1, SM-1A and PM-2A Cores

Description: Report describing a study which analyzed thermal characteristics of Type 3 elements planned for installation in the SM-1, SM-1A and PM-2A plants, for both steady state and loss of flow transient conditions. Results of this analysis for steady state conditions indicate that the SM-1, SM-1A and PM-2A Type 3 cores will operate safely at design and scram conditions.
Date: March 30, 1962
Creator: Davidson, S. L. & Segalman, I.
Partner: UNT Libraries Government Documents Department

Nuclear Merchant Ship Reactor Shield Design Summary Report

Description: Abstract: "Most of the Nuclear Merchant Ship Reactor (NMSR) shield design work performed by The Babcock & Wilcox Company (B&W) is summarized. Primary and secondary shield results are presented, consistent with contractual requirements and designated design criteria. Methods of calculation and basic parameters are shown" (p. 1).
Date: August 1, 1959
Creator: Smith, W. R. & Turner, M. A.
Partner: UNT Libraries Government Documents Department

Experimental Techniques, Part 2: Ionization Chambers and Counters

Description: Declassified Manhattan Project document on alpha particle detectors, absolute counters, neutron recoils detectors, reactions detectors, and fission detectors,
Date: 1947
Creator: Rossi, Bruno Benedetto & Staub, Hans Heinrich
Partner: UNT Libraries Government Documents Department

Transistors: Counters

Description: Abstract: "Two transistor plug-in decade counters are described, one of which operates over the SCS-7 temperature range. A transistor digital scanner with storage and parallel readout is described. It utilizes one of the plug-in decades. A simple design procedure for flip-flops is presented."
Date: May 29, 1957
Creator: Pollard, Neith
Partner: UNT Libraries Government Documents Department

In Situ Tracers Project Second Quarterly Progress Report: June-August 1959

Description: The purpose of this program is to summarize and evaluate the potential usefulness of in situ tracers, design and construct prototypes of large low-level soft beta counters for industrial application, especially of such isotopes as carbon-14 and tritium, and design and construct a prototype of a large low-level liquid scintillation detector for use vi the process gamma counting.
Date: 1959
Creator: U.S. Atomic Energy Commission
Partner: UNT Libraries Government Documents Department

Methods of Opacity Calculations

Description: "Methods for calculating the opacity of materials at high temperatures are discussed in this report. Minor improvements are outlined for the treatment of continuous absorption processes, and a small error usually made in treating the scattering process is corrected. In contrast to all previous calculations of opacity, the effect of line absorption is carefully examined, for it may well be the dominant process under certain conditions of temperature and density. Detailed methods for calculating the line absorption contribution are, therefore, developed. To illustrate the principles involved, the opacity of pure iron at a temperature of 1000 volts and normal density is worked out in detail" (p. ii).
Date: 1949
Creator: Mayer, Harris
Partner: UNT Libraries Government Documents Department

Decomposition of Water at High Temperatures and Pressures Under Reactor Irradiation

Description: Partial abstract: "The investigation of the high temperature and pressure dissociation of water under irradiation was undertaken by the Power Pile Division of Oak Ridge National Laboratory in an effort to determine the degree of importance of the phenomenon with respect to the design of a high temperature water-cooled power reactor. Theory and past experimentation indicate that net steady-state dissociation is determined by the rates of the dissociation and recombination reactions under the imposed conditions, the dissociation rate being essentially a function of flux and the recombination rate essentially a function of temperature" (p. 3).
Date: September 16, 1949
Creator: Fromm, L. W.
Partner: UNT Libraries Government Documents Department

Balanced Ionization Chamber for Differential Measurements of Gamma Rays

Description: "The purpose of the work was to develop a method of measuring very small differences in the half lives of gamma ray emitting radioactive substances. The apparatus was then used to try to detect a difference in the half lives of Be7 metal and BeO. The results of the measurements on the two different chemical forms of beryllium will be given" (p. 1).
Date: 1947
Creator: Wiegand, Clyde
Partner: UNT Libraries Government Documents Department

The Heat of Solution of Uranium Tetrachloride in Aqueous Perchloric Acid Solutions

Description: Abstract: "The heat of solution of UCl4 solid has been measured and found to change appreciably with changing concentration of H+ or ionic strength. The heat of hydrolysis of U+4 to form UOH+3 is probably of the order of +11 kcal per mole" (p. 1).
Date: August 19, 1947
Creator: Fontana, B. J.
Partner: UNT Libraries Government Documents Department

Columbia Scaling Circuits

Description: Abstract: "The advantages of high scaling ratios in counting random pulses are discussed. The mechanism of the basic circuit used in the Columbia University scaling circuits is described. The difficulties experienced in the performance of the earlier circuits are indicated and modified circuits to eliminate these difficulties are given. Precautions that must be observed in carrying out the constructional details are suggested. The complete circuit and specifications are given in detail for a Scale of 128 for use with linear-amplifier systems" (p. 1).
Date: unknown
Creator: Glassford, H. A. & Dunning, J. R.
Partner: UNT Libraries Government Documents Department

Estimation of Small Quantities of Uranium in Thorium

Description: Abstract: "Estimation of the intensity of the uranyl fluorescence furnishes a method for the determination of quantities of uranium as low as one-half microgram of uranium in one-half illilitor of glassy phosphoric acid. The test has been used to detect directly three parts of uranium in one million parts of thorium" (p. 1).
Date: 1946
Creator: Weissman, S. I. & Duffield, R. B.
Partner: UNT Libraries Government Documents Department

Report on a Magnetic Drive Design for the Fercleve Coporation

Description: This report discusses the development of a design for a "permanent magnet drive to couple a motor shaft with a pump impeller through a thick metallic diaphragm of small diameter. [...] The following report presents the procedures and results of the magnetic drive development up to date of cancellation and includes the general features of the design which would have been recommended if the contract had not been cancelled" (p. 1).
Date: 1946?
Creator: Williams, W. D.
Partner: UNT Libraries Government Documents Department

Small Nuclear Power Plants, Volume 3: A General and Economic Assessment

Description: Report about the study of technical and economic potential of small nuclear power plants; this volume summarizes data collected regarding the economics for nuclear plant and fuel performance capabilities.
Date: March 1967
Creator: Kaiser Engineers
Partner: UNT Libraries Government Documents Department

Nuclear Merchant Ship Reactor Final Safeguards Report, Volume 6: Environmental Analysis OF NS "Savannah" Operation at Camden

Description: "An analysis is presented of the accidental release of activity following the operation of the NS "Savannah" at the New York Shipbuilding Corporation docks in Camden, New Jersey. Although a number of accidents are considered, the report is primarily concerned with the environmental activity levels and subsequent exposures which would result from the "maximum credible accident" (p. v).
Date: January 24, 1961
Creator: Cottrell, W. B.; Parker, F. L.; Mann, L. A. & Schmidt, G. D.
Partner: UNT Libraries Government Documents Department

The Preparation and Properties of Mammalian Ribonucleic Acids

Description: "A method for the preparation of mammalian ribonucleic acids employing high concentrations of guanidine hydrochloride in the fractionation procedure is reported in this paper. Aside from the facility of preparation the method has the advantage of avoiding conditions of acidity and alkalinity which might degrade tissue ribonucleic acids and, by virtue of the protein denaturant action of guanidine salts, of minimizing the possibility for enzymatic degradation" (p. 3).
Date: October 12, 1950
Creator: Volkin, E. & Carter, C. E.
Partner: UNT Libraries Government Documents Department

A Proposal for the Mc2 Isochronous Cyclotron: A General Purpose High-Intensity 810-MeV Proton Accelerator

Description: Abstract: "The Oak Ridge National Laboratory proposes to build an isochronous eight-sector proton cyclotron to provide an extracted beam in excess of 100 A at 810 MeV. The primary proton beam and the secondary meson and neutron beams will be used to investigate nuclear structure, and the interactions between elementary particles. Biomedical and Space-oriented research programs are also planned. Shielded research areas and an extensive beam transport and analysis system are provided. Theoretical and experimental studies have shown that the Mc2 Cyclotron is a practical concept; high extraction efficiencies can be obtained, and the residual radiation problems are manageable. The project would require less than seven years to complete, and would cost about $43,000,000."
Date: November 1, 1963
Creator: Oak Ridge National Laboratory
Partner: UNT Libraries Government Documents Department

1024 Channel Time-of-Flight Analyzer for MTR Fast Chopper - Operating Manual

Description: Report on the principle of measuring the time-of-flight of neutrons, magnetic-core storage of detector pulses, how pulses are stored, current generator, storage cycle generator, and cathode ray oscillograph.
Date: March 11, 1959
Creator: Petree, F. L.
Partner: UNT Libraries Government Documents Department

Experimental Determination of the Pressure Drop Through a Pebble Bed

Description: Abstract: "The pressure drop associated with the flow of air through a cylindrical bed of spherical pebbles has been investigated experimentally. The results of this investigation are reported here."
Date: September 1959
Creator: Randall, D. E. & Millwright, S. S.
Partner: UNT Libraries Government Documents Department

A Method of Calculating Boundary-Layer Thickness in Axisymmetric Nozzles with Laminar Hypersonic Flow

Description: Abstract: "The excellent agreement between measured boundary layer thickness and thickness calculated by Sivells and Payne recommends their method for calculating turbulent boundary layer growth in axisymmetric hypersonic nozzles. It was thought worthwhile to adapt their approach to the laminar boundary layer. This analysis, along with a limited amount of corroborating data, is presented herein."
Date: October 1959
Creator: Johnson, Arlo F.
Partner: UNT Libraries Government Documents Department