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Comparison of Two Sodium-Cooled, 1000 MegaWatt Fast Reactor Concepts: Task 1 Report of 1000 MegaWatt Liquid Metal Fast Breeder Reactor Follow-On Work
From introduction: "The development of one or more nuclear steam supply system concepts, with certain trade-off studies to aid in the definition of these concepts. The selection of a reference concept for further study."
Date:
June 1968
Creator:
General Electric Company
Object Type:
Report
System:
The UNT Digital Library
Composition and Thermal Decomposition of Uranyl Peroxide
Technical report on the studies that have been made on the composition and thermal decomposition of uranyl peroxide. The conditions of precipitation and drying have been found to have no appreciable effect on the composition of the compound, but do affect the physical appearance of the precipitate and the rate of thermal decomposition. The UO4 + 2H2O appears to be thermodynamically unstable with respect to UO3 at 25 degrees C and atmospheric pressure, although the rate of conversion is extremely slow. The UO4 + 2H2O is completely converted to UO3 on standing at 150 degrees C and atmospheric pressure for two weeks. Partially decomposed uranyl peroxide samples contain extra oxygen which is released on immersing the sample in water.
Date:
June 30, 1945
Creator:
Leininger, R. F.; Hunt, J. P. & Koshland, D. E., Jr.
Object Type:
Report
System:
The UNT Digital Library
Consolidated Edison Thorium Reactor Hot Exponential Experiment
A series of exponential experiments were performed using Consolidated Edison Thorium Reactor oxide type fuel pins in a light water lattice. These experiments were performed in a new facility where measurements were made at temperatures up to 468 F. In addition, boric acid was added to the system in various concentrations. The main objective of these experiments was to obtain the change in material buckling for the system as operating conditions were changed from ambient temperature to high temperature.
Date:
June 1960
Creator:
Clark, R. H.; Barrett, L. G. & Funderburg, J. M.
Object Type:
Report
System:
The UNT Digital Library
A Continuous Water Monitor for Detecting PPM Quantities of Alkali Metals
Abstract: "This report describes a flame photometric system which continuously monitors a process water stream for ppm quantities of alkali metals, and automatically diverts the stream when the contamination exceeds a pre-determined level."
Date:
June 20, 1955
Creator:
Been, Julian F.
Object Type:
Report
System:
The UNT Digital Library
Cosmogenic Carbon-14 and Chlorine-36 in Meteorites
In 1947 Bauer, and later independently Huntley (1948), pointed out that the helium content of iron meteorites as measured by Paneth and coworkers could be accounted for by the accumulation through cosmic-ray production rather then the decay of uranium and thorium. Bauer (1947) also predicted that the meteroitic helium should contain a significant proportion of He3. I was realized that by studying the effects of cosmic radiation on meteorites much could be learned about the history of meteorite and cosmic radiation. Chemical and instrumental techniques have been developed for the isolation, purification, and measurement of cosmic-ray-induced C14 in both stone and iron meteorites. The isolation of carbon from the silicate materials is done by fusion in an oxidizing flux in a vacuum system. From the iron meteorites the carbon is recovered by the decomposition of the metal in nitric acid in a closed system.
Date:
June 4, 1962
Creator:
Goel, Parmatma S.
Object Type:
Report
System:
The UNT Digital Library
Critical Experiments on Slightly Enriched Uranium Metal Fuel Elements in Graphite Lattices
Abstract: A series of clean critical experiments was performed in the SGR critical facility utilizing 2 wt % enriched, uranium metal, hollow cylinder, fuel elements, in AGOT graphite moderator.
Date:
June 30, 1963
Creator:
Campbell, R. W.; Doyas, R. J.; Field, H. C.; Guderjahn, C. A.; Guenther, R. L.; Hausknecht, D. F. et al.
Object Type:
Report
System:
The UNT Digital Library
A Critical Survey of Neutron Cross Sections
From introductory paragraphs: "The central problems in neutron research are the understanding of nuclear structure and the study of the properties of nuclear particles, particularly the properties of the neutron. The most fruitful attack on these problems is the determination of the probability of interactions between neutrons and nuclei, i.e., the measurement of neutron cross sections. Ideally, this involves the study of all possible types of neutron interaction with all available nuclei at all neutron energies...The discussion in this paper will omit the interactions leading to neutron productions, and will be limited to the intersections of neutrons with stable nuclei."
Date:
June 20, 1964
Creator:
Goldsmith, H. H.
Object Type:
Report
System:
The UNT Digital Library
Cross Sections of 14.5 Mev Neutron Reactions With Special Interest in Ca47 Formation
This report measures the cross sections of isotopes for 14.5 MeV neutrons and compares the author's results with calculated and existing literature values.
Date:
June 18, 1962
Creator:
Hillman, Manny
Object Type:
Report
System:
The UNT Digital Library
The Crystal Structure of Uranium Tetrafluoride
Fourier refinement analysis of the uranium parameters in uranium tetrafluoride.
Date:
June 6, 1951
Creator:
Burbank, R. D.
Object Type:
Report
System:
The UNT Digital Library
Description of the Thermal Hydraulics Laboratory at Hanford
Report describing the thermal hydraulics facilities at Hanford Laboratories as well as its operation, equipment, and systems.
Date:
June 2, 1960
Creator:
Batch, J. M. & Toyoda, K. G.
Object Type:
Report
System:
The UNT Digital Library
Design and Fabrication of Coextruded Stainless Steel Clad UO2 Fuel Rods
A process was developed in which stainless steel-clad UO2 fuel rods are fabricated by high-temperature coextrusion. The process has a potential of being a more economical method for the preparation of stainless steel-clad UO2 fuel rods than the conventional pellet process. Consequently, it was considered advantageous to evaluate the irradiation characteristics of fuel rods fabricated in this manner. Therefore, 24 coextruded fuel rods were manufactured for evaluation in a reactor. The required amounts of UO2 and clad were soaked in separate containers at 1875 and 760 degree C, respectively. The containers were removed from their respective furnaces and were coextruded in one pass. A force of 450 to 475 tons was used, and a reduction ratio of 18 to 1 was obtained. The coextruded rods were cut to the approximate length, and the ends were sealed with an acid-resistant tape. The carbon steel can covering the stainless steel clad was removed by immersion in 1:1 nitric acid for 20 minutes. The rods were visually inspected, the specified lengths of clad and fuel were obtained by machining, and the correct diameter was obtained by belt sanding. The fabrication of the fuel rods was completed by inserting the plenum support tubes and …
Date:
June 1963
Creator:
Baroch, C. J.
Object Type:
Report
System:
The UNT Digital Library
Detection of Airborne Beryllium Dust : Monthly Report Covering the Period from May1 to June 1, 1955
During this period a prototype gamma ray detection system was assembled and data was obtained on samples of beryllium salts on filter paper under a variety of conditions. Ordinarily either a scaler-register combination or the CRM-recorder combination would be sufficient for obtaining data. Both units have been used here in order to utilize the particular advantages of each system. The scaler-register unit was employed for obtaining precise data over short intervals while the CRM-recorder was used to maintain a check on stability over longer intervals of time.
Date:
June 14, 1955
Creator:
McCarty, R. G.
Object Type:
Report
System:
The UNT Digital Library
Determination of half life of polonium-210 by counting: final report
Introduction: "A number of determination have been made of the half life of polonium-210 by calorimetry. Counting affords an entirely different method of determining half lives and requires only a small amount of activity. Therefore for comparison a half-life determination by counting was undertaken with a sample of approximately 0.5 millicurie of polonium."
Date:
June 1, 1951
Creator:
Curtis, Mary Lou
Object Type:
Report
System:
The UNT Digital Library
The Determination of Solid Solubilities by a Strain-Aging Technique
This document describes a method in determining solid solubilities using strain-aging techniques, explaining a non-uniform yielding of the alloy in question.
Date:
June 12, 1952
Creator:
Speich, Gilbert R. & Kulin, S. A.
Object Type:
Report
System:
The UNT Digital Library
Development and Testing of Low Cost Fuel Elements for Power Reactor Service
The development of swaging and vibratory compaction process for fabrication of clad UO2 fuel rods is described. The cost is less than 50% of that for an equivalent core fabricated from pellets. The irradiation testing of vibratory filled and swaged UO2 rods is reported for burn-ups from 2,000 to 12,000 Mwd/t UO2; the results indicate that the rods are capable of excellent performance power reactors.
Date:
June 2, 1961
Creator:
Babcock & Wilcox Company
Object Type:
Report
System:
The UNT Digital Library
The Development and Testing of UO2 Fuel Systems for Water Reactor Applications: Summary Report, July 1, 1961 - June 15, 1962
From introduction: "The work described in this report represents the Joint United States - European Atomic Energy Community effort which is in keeping with the spirit of cooperation in contributing to the common good by the sharing of scientific and technical information and minimizing the duplication of effort by the limited pool of technical talent available in Western Europe and the United States."
Date:
June 1962
Creator:
Murtha, B. E. & Chernock, W. P.
Object Type:
Report
System:
The UNT Digital Library
Diffusion in a Temperature Gradient
To summarize one finds that for diffusion in a temperature gradient by a vacancy mechanism one must have E(M) < E(F). No such restrictions occur for interstitial diffusion. The spatial vacancy distribution is very nearly the equilibrium distribution if dislocations are present. If no dislocations are present then one could obtain E(M) by measurement of the spatial distribution.
Date:
June 1959
Creator:
Koehler, James S. (James Stark), 1914-2006
Object Type:
Report
System:
The UNT Digital Library
Diffusion in Cobalt-Nickel Alloys, Report No. 4
The self-diffusivities of Co60 and Ni63 in cobalt--nickel solid solutions exhibit a greater activation energy below the Curie temperature (T/sub c/) than above. Values of DELTA Q = Q (ferromagnetic) -- Q (paramagnetic) are approximately equal to RT/sub c/. This observation is interpreted to indicate that the increment in activation energy arises from an increase in the formation energy of a vacancy in the ferromagnetic lattice, with the additional binding energy arising from the interaction of a spin with the Weiss field."
Date:
June 6, 1962
Creator:
Hirano, Ken-ichi; Agarwala, R. P.; Averbach, B. L. & Cohen, Morris
Object Type:
Report
System:
The UNT Digital Library
Diffusion of Iron, Cobalt, and Nickel in Gold, Report No. 5
"The diffusivities of Fe, Co, and Al in otherwise pure Au were determined by a residual activity technique. It was found that the frequency factors and activation energies of the transition elements into Au are normal relative to the values for Au self-diffusion, and suggest that lattice diffusion is operative, in contrast to the corresponding situation for the diffusion of these elements in Al. This difference in behavior is explained in terms of the marked difference in solid solubilities in the two series."
Date:
June 6, 1962
Creator:
Duhl, David N.; Hirano, Ken-ichi & Cohen, Morris
Object Type:
Report
System:
The UNT Digital Library
[Dillingham Quadrangle: Average Record Data Listings]
Average record (statistical analysis) data listings taken during aerial gamma-ray and magnetic surveys of the Dillingham quadrangle in Alaska.
Date:
June 1978
Creator:
Texas Instruments Incorporated
Object Type:
Dataset
System:
The UNT Digital Library
[Dillingham Quadrangle: Single Record Data Listings]
Single record data listings taken during aerial gamma-ray and magnetic surveys of the Dillingham quadrangle in Alaska.
Date:
June 1978
Creator:
Texas Instruments Incorporated
Object Type:
Dataset
System:
The UNT Digital Library
The Disposal of Radioactive Wastes
Technical report describing a brief survey of the problems concerned with radioactive waste disposal.
Date:
June 19, 1955
Creator:
Ophel, Ivan L.
Object Type:
Report
System:
The UNT Digital Library
The Distribution of Trace Quantities of Uranium in Nature
The following report follows a study that deals with the development of a technique for the determination of microquantities of uranium in matter.
Date:
June 1951
Creator:
Tilton, George Robert
Object Type:
Report
System:
The UNT Digital Library
The Distribution of Uranium-Vanadium Deposits in the Colorado Plateau Relative to Tertiary Intrusive Masses
Introduction: Studies of uranium-vanadium occurrences in the Four Corners region show that, with the exception of the Lukachuai area, all of the major deposits in the Morrison formation are grouped around the various igneous masses which are scattered irregularly throughout the Colorado Plateau. The pattern of deposition varies from mountain group to mountain group and each will be described separately. Maps accompany this report to supplement the descriptions of ore occurrences in the vicinity of the La Sal, Abajo, Carrizo, and Henry mountains. Elsewhere, it is believed that a written description will suffice.
Date:
June 11, 1952
Creator:
Reinhardt, Elmer V.
Object Type:
Report
System:
The UNT Digital Library