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A Recirculating Supercritical Water Loop

Description: From Abstract: "A recirculating high-pressure stainless steel loop was developed for the study of heat transfer from small-bore tubes to supercritical water. It was found that under certain conditions, hot spots developed on the test section. The conditions leading to the formation of hot spots were investigated; the results of several runs are tabulated here."
Date: October 25, 1954
Creator: Epstein, H. M.; Goldthwaite, W. H.; Chastain, Joel W. & Fawcett, Sherwood L.
Partner: UNT Libraries Government Documents Department
open access

A Recirculating Supercritical Water Loop

Description: From abstract: "A recirculating high-pressure stainless steel loop was developed for the study of heat transfer from small-bore tubes to supercritical water. It was found that under certain conditions, hot spots developed on the test section. The conditions leading to the formation of hot spots were investigated; the results of several runs are tabulated here."
Date: October 25, 1954
Creator: Epstein, H. M.; Goldthwaite, W. H.; Chastain, Joel W. & Fawcett, Sherwood L.
Partner: UNT Libraries Government Documents Department
open access

Corrosion of Austenitic Stainless Steels in MJ-4 Raw Streams

Description: Introduction: "A laboratory investigation of the relative corrosion resistance of several austenitic stainless steels to the RAW stream of the Tributyl Phosphate Waste Metal Recovery Process was made during the first quarter of 1950. The results of this investigation are reported herein; all original data are recorded in laboratory notebook HW-3282-T."
Date: April 25, 1950
Creator: Koenig, W. W.
Partner: UNT Libraries Government Documents Department
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Thermoelectric Properties of the Plasma Diode

Description: It is well known that thermionic emission into vacuum is accompanied by a Peltier cooling of the vacuum metal interface. The interface may be thought of as a junction between two conductors: the metal, and an electron gas whose distribution is determined primarily by space charge. The addition of a small amount of easily ionized gas to the vacuum region does not affect the Peltier cooling of the interface, but is does squeeze the space charge region to about one micron and replaces most of the … more
Date: July 25, 1958
Creator: Lewis, H. W. & Reitz, John R.
Partner: UNT Libraries Government Documents Department
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Radioactive debris from operations Tumbler and Snapper: observations beyond 200 miles from the test site. Part II

Description: The results of the fall-out monitoring program at fixed stations more than 200 miles from the test site following the series of atomic tests in Nevada during the spring of 1952 are shown in a series of maps. Trajectories of debris from the individual bursts are given, together with a discussion of meteorological phenomena associated with the transport of atomic debris.
Date: February 25, 1953
Creator: List, R.J.
Partner: UNT Libraries Government Documents Department
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Forced Convection Heat Transfer in Thermal Entrance Regions Part III. Heat Transfer to Liquid Metals

Description: Technical report covering the work done to explore heat transfer analytically and experimentally in liquid metals in turbulent flow within the thermal entrance region of circular tubes having uniform well temperature. Includes implications of this research. [From Summary]
Date: June 25, 1954
Creator: Harrison, William B.
Partner: UNT Libraries Government Documents Department
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Corrosion Data From the ORNL Purex Pilot Plant Acid Recovery Equipment

Description: From abstract: "This report summarizes the corrosion data obtained for nine construction materials located throughout the ORNL Purex Pilot Plant Acid Recovery Unit during seven hundred hours of operation."
Date: March 25, 1952
Creator: Landry, J. W. & Ullmann, J. W.
Partner: UNT Libraries Government Documents Department
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An Experimental Determination of Fission Product Heating After Shutdown of the Low Intensity Training Reactor

Description: Technical report containing the general arrangement of the Low Intensity Training Reactor and outcomes of experiments that have been performed in the reactor to measure the rate of fission product heat dissipation from the fuel pieces after loss of water. [From Summary, Introduction]
Date: September 25, 1951
Creator: Beall, S. E.
Partner: UNT Libraries Government Documents Department
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Cross Section Program at ORNL

Description: ORNL's Cross Section Program focuses on measuring, evaluating, and applying nuclear data for nuclear criticality safety, reactor analysis, and astrophysics. This technical report discuses (1) Capture Cross Sections; (2) Activation Cross Sections at 195 Kev, (3) Al27(n,alpha)Na24 Cross Section, (4) S-Wave Detector of Deuteron Polarization and 14-Mev Polarized Neutron Source, (5) Coulomb Excitation of the First and Second 2+ States in Some Medium-weight Even-even Nuclei, (6) A Reaction Product Ma… more
Date: February 25, 1959
Creator: Harvey, J. A. (John A.) & Fowler, J. L.
Partner: UNT Libraries Government Documents Department
open access

Analysis of Neutron Pulses in a Godiva-Type Reactor

Description: Some calculations have been made to estimate the characteristics of a neutron-burst type fast reactor similar to Godiva but made up of relatively small component parts--the so-called "layered assembly." One spherical and three cylindrical assemblies have been considered. Critical masses, assuming 5% voids, range from 58 to 65 kg of 93.4% enriched U/sup 235/. For a reactivity addition of 0.33 dollars above prompt critical bursts between 2 x 10/sup 17/ and 6.7 x 10/ sup 17/ fissions were computed… more
Date: February 25, 1959
Creator: Nestor, C. W. & Tobias, Melvin
Partner: UNT Libraries Government Documents Department
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Effects of Fuel Burn-Up on the Dissolution Process-I

Description: Data on the effects of nuclear fuel burnup on dissolution rates and U losses of a few fuel types are summarized. Burnup to the 40% level produced very little effect on the rate of solution of stainless steel-UO/sub 2/ fuel elements in solutions of the Darex type. Beyond passivation, burnup to the 250 Mwd/T level did not produce a large effect on the rate of decladding nor on the U losses in the Sulfex process. Burnup to the 15% or 4300 Mwd/T level produced little or no effect on the rate of dec… more
Date: March 25, 1959
Creator: Davis, W., Jr.
Partner: UNT Libraries Government Documents Department
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Comparison of Two Colorimetric Methods for Uranium

Description: In order to establish the feasibility of using two colorimetric methods for the determination of uranium interchangeably, according to the interferences encountered in a particular sample. Results were obtained by each of the methods and compared. The dibenzoyl methane method and the ethyl acetate-ammonium thiocyanate procedure were compared on the basis of values secured on the same day, on different days, on an analysis of the variance, and on an analysis of the residual error for the methods… more
Date: March 25, 1959
Creator: McCutchen, Roberta L.
Partner: UNT Libraries Government Documents Department
open access

Spectrophotometry of Molten Fluoride Salts: Status Report

Description: Progress made in the field of spectrophotometry of molten fluoride salts is summarized. The high-temperature cell assembly designed and fabricated for use in this work is described, as well as the various types of sample containers used. Spectra of nickel fluoride, cobalt fluoride, chromic fluoride, and uranium tetrafluoride in LiF--NaF-KF (46.5-11.5--42 mole%) are presented. (auth).
Date: March 25, 1959
Creator: White, J. C.
Partner: UNT Libraries Government Documents Department
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Report of the Forty-First National Conference on Weights and Measures, 1956

Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date: February 25, 1957
Creator: United States. National Bureau of Standards.
Partner: UNT Libraries Government Documents Department
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An Evaluation of Electro-Machining for the Analysis of Metal Surfaces

Description: A procedure is described for the uniform removal of very thin sections of metal surfaces by electrolysis. Equipment requirements and the various parameters affecting operation are considered, and the results of applying the technique to studies of solid-state diffusion are discussed. The technique appears to offer considerable promise for evaluating chemical changes at metal surfaces which have taken place as a result of corrosion or diffusion processes. (auth).
Date: June 25, 1959
Creator: DeVan, J. H.
Partner: UNT Libraries Government Documents Department
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Uranium Chemistry of Raw Materials Section Progress Report for October 1, 1951 to December 31, 1951

Description: This progress report discusses the work during the fourth quarter of 1951. During this quarter, "the uranium raw materials program at ORNL has been devoted to studies of uranium chemistry and to the development of processes for deriving uranium and byproducts from various types of ores" (From introduction).
Date: January 25, 1952
Creator: Brown, K. B.
Partner: UNT Libraries Government Documents Department
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Progress Report on AEC Contract on Research and Development Program on Scintillation Crystals: Period 1 January 1956 to 1 April 1956

Description: From Abstract: "This report covers the preliminary literature survey and the screening of activated cesium iodide and several alkali halides to qualitatively determine their luminerscence. The report also includes a proposal of the future work and a proposed budget for the 1957 fiscal year."
Date: April 25, 1956
Creator: Beadle, Robert
Partner: UNT Libraries Government Documents Department
open access

An On-Off Servo for the ARE

Description: Fuel temperature is used to govern the servomechanism which operates the ARE control rod. The mechanism circuitry is given and its operation is described.
Date: November 25, 1952
Creator: Hanauer, S. H.; Mann, E. R. & Stone, J. J.
Partner: UNT Libraries Government Documents Department
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In-reactor corrosion of X-8001 and 1245 aluminum: Analysis of data from PT IP-42A

Description: Failures of standard fuel element jackets (1245 aluminum alloy) after relatively short Hanford reactor exposures are occurring at high reactor power levels. Metallographic examination of fuel element jackets from short exposure ruptures shows the cause of failure to be rapid intergranular corrosion. This type of attack has been reproduced in laboratory tests by exposure to water at temperatures above 200 C, or to steam at temperatures higher than 300 C. Flow disruptions due to misalignment of t… more
Date: June 25, 1958
Creator: Dillon, R. L. & Richman, R. B.
Partner: UNT Libraries Government Documents Department
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High Energy Fission and Spallation of Uranium

Description: From introduction: "This report is an attempt to examine, semiquantitavely, the way the competition between neutron emission and fission varies for heavy nuclei as a function of nuclear type and excitation energy. Many of the ideas herein are the results of discussions with R. H. Goeckermann and W. Heckrotte of the University of California Radiation Laboratory."
Date: February 25, 1954
Creator: Batzel, Roger Elwood
Partner: UNT Libraries Government Documents Department
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Production Test No. 105-522-E, Examination of pile process tubes

Description: The objective of the production test described in this report is to provide the authority and mechanism to remove process tubes from the piles for inspection. The test is intended to provide a more positive tube inspection program than was previously provided under production test number 105-9-P, ``Corrosion of Slugs and Tubes``, document number 7-3928.
Date: May 25, 1953
Creator: Falkoski, R. E.
Partner: UNT Libraries Government Documents Department
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Analytical procedures for the plutonium Metal Fabrication Process

Description: Report describing the results of the cupferron extraction-copper spark method in determining the impurity elements in plutonium metal. This was required the 234-5 Project analytical program.
Date: July 25, 1952
Creator: Bierlein, T. K.; Kendall, L. F. & Van Tuyl, H. H.
Partner: UNT Libraries Government Documents Department
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