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415
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208
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174
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603 Matching Results
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Preliminary Report on the Results of Geobotanical Prospecting on the South Flank of Haystack Butte, McKinley County, New Mexico
Abstract: The absorber plant method of geobotanical prospecting was tested systematically over the bench formed by the Jurassic Todilto limestone on the south flank of Haystack Butte, McKinley County, N. Mex. This portion of the bench includes the largest known uranium ore body in limestone and most has been extensively drilled by private enterprise. Geobotanical prospecting was accomplished to provide control data. Comparison of the geobotanical anomalies with the available drill hole information from the mining companies and Atomic Energy Commission geologists have shown that the known ore occurrences would have been outlined by the results of the tree sampling. In addition some geobotanical anomalies are indicated in drilled areas in which ore was not reported and in areas not physically explored at the time of sampling. These anomalies may represent mineralized ground below ore grade or new ore deposits.
Date:
April 1953
Creator:
Narten, Perry F.
System:
The UNT Digital Library
Reconnaissance for Uranium in the Powder River Basin, Wyoming
Abstract: A reconnaissance was made of a large part of the Powder River Basin, Wyoming, during the summer of 1952 to search for uranium deposits in parts of the basin other than the Pumpkin Buttes area. No uranium deposits of economic interest were found, but some rocks of the Tertiary Fort Union formation and the Cretaceous Inyan Kara group were found to be sufficiently uraniferous to justify further search in rocks of these units. Analyses of samples of sandstones, baked shales, and siltstones taken during the reconnaissance show these rocks are considerably more vanadiferous than the average sandstone, or clay and shale.
Date:
May 1953
Creator:
Davidson, David F.
System:
The UNT Digital Library
Preliminary Report on Geophysical Investigations of the Deer Flat Area, White Canyon District, San Juan County, Utah
From abstract: The purpose of the survey was twofold: to determine the trend of the Hideout Channel across Deer Flat and to delineate fractures cutting through the ore deposit at the Hideout mine.
Date:
November 1953
Creator:
Jackson, W. H.
System:
The UNT Digital Library
Corrosion of Uranium Alloys in High-Temperature Water
This report is one of a series of five, dealing with alloys of the uranium-zirconium series. Particularly, this report focuses on the corrosion properties of uranium alloys, with zirconium as the major alloying agent, in high-temperature water.
Date:
1953
Creator:
Pray, H. A. & Berry, Warren E., 1922-
System:
The UNT Digital Library
Welded Closures for Fuel Elements
From abstract: "The inert-gas metal-arc welding process was used to determine weldability studies of various aluminum alloys that are being considered for use as can materials. The solid-phase and induction welding processes were also investigated for making can closures."
Date:
October 8, 1953
Creator:
Sopher, R. P.; Martin, G. E.; Grable, G. B.; Voldrich, C. B.; Leatherman, A. F. & Todd, F. C.
System:
The UNT Digital Library
Preparation and Properties of the Eutectic Uranium-Chromium Alloy
This report follows the study of the properties of eutectic uranium-chromium alloy which is of interest in the Dow-Detroit Edison power reactor. The reactor is described in this report, as well as the casting of alloy, shrinkage measurements during solidification, density measurements, microstructures and macrostructures, mechanical properties, and specific heat data.
Date:
November 3, 1953
Creator:
Saller, Henry A.; Rough, Frank A. & Dickerson, Ronald F.
System:
The UNT Digital Library
Uranium Migration in UO₂-Bearing Ceramics
This report follows a preliminary study on uranium migration in pressed and sintered UO2-bearing bodies based on MoSi2 or Al2O3.
Date:
September 4, 1953
Creator:
Quirk, J. F.; Smalley, A. K.; Duckworth, W. H. & Ferrell, Edward Francis.
System:
The UNT Digital Library
Differential Thermal-Expansion Effects on Brazed Joints
Abstract: "Differential thermal-expansion effects in brazed joints involving Type 310 stainless steel and GE-62 brazing alloy were investigated. The work included dilation and modulus-of-elasticity measurements using homogenous cast specimens and observations on bimetallic cantilevers made of the two constituents. No anomalies were found, although there were irregularities in the expansion of the brazing alloy which were ascribed to a solubility phenomenon. The elastic modulus of the brazing alloy was determined. Cantilever deflections with temperature and with load were measured, and the results were interpreted using equations which treat the specimens as true bimetals consisting of two homogeneous components. The difference in thermal-expansion coefficients obtained in this way from the temperature-deflection data was consistent with the dilation measurements. The load measurements yielded an average elastic modulus for the bimetal which was about two-thirds of what would have been expected from knowledge of the components. This discrepancy probably arose from porosity which was observed in the braze components."
Date:
September 4, 1953
Creator:
Saller, Henry A.; Baroody, Eugene Michael, 1914-1982; Deem, H. W.; Stacy, J. T. & Klebanow, H. L.
System:
The UNT Digital Library
Fused Salt Mixtures as Potential Liquid Fuels for Nuclear Power Reactors
From introduction: "This report summarizes the work done on a study of fused-salt systems in a search for new liquid fuels suitable for use in a nuclear power reactor."
Date:
September 8, 1953
Creator:
Crooks, R. C.; Snyder, M. J. & Clegg, J. W.
System:
The UNT Digital Library
Investigation of the Behavior of NaOH-UO₃ Slurries in Small Flow Loops
From introduction: "This report presents the results of an experimental program to evaluate engineering problems which might be encountered when circulating NaOH-UO3 slurry through a thermal cycle."
Date:
September 15, 1953
Creator:
Stang, J. H.; Lagedrost, J. F.; Simons, E. M. & Dayton, R. W.
System:
The UNT Digital Library
Ternaries of the eutectic uranium-chromium alloy
A report about a study about the effect of small additions of iron, nickel, and manganese to the uranium - 5 wt % chromium eutectic alloy.
Date:
1953
Creator:
Saller, Henry A.; Rough, Frank A. & Bauer, A. A.
System:
The UNT Digital Library
The Effectiveness of Spray Cooling
Abstract: "A possible method of cooling a liquid-fuel reactor is by spraying liquid metal through the liquid fuel, and then circulating the liquid metal through a heat exchanger. To evaluate the effectiveness of this cooling method, a few simple experiments were made with mercury sprayed through water. On the basis of the results, it was concluded that this method was intrinsically a low-power-density method, which could not find application except where a low fissionable-material inventory was the dominating requirement in a low-power reactor. Even there, it is thought that a boiling homogeneous reactor might be superior. The results are reported, in spite of their probably lack of value in the reactor program, simply to make the record complete."
Date:
October 1, 1953
Creator:
Dayton, R. W.; Allen, C. M. & Miller, N. E.
System:
The UNT Digital Library
Uranium Occurrences in the Golden Gate Canyon and Ralston Creek Areas, Jefferson County, Colorado
From abstract: Pitchblende, associated with base-metal sulfides, has been found at eight localities in the northern part of Jefferson County, Colo., in shear zones that cut pre-Cambrian metamorphic and igneous rocks, chiefly hornblende gneiss, biotite schist, and granite pegmatite. The pitchblende deposits, with one exception, are in major shear zones that contain vein-like bodies of carbonate-rich breccia. The breccia bodies range from 1 to 5 feet in thickness and are related probably to the Laramide faults, or "breccia reefs" of similar trend, mapped by Lovering and Goddard (1950).
Date:
January 1953
Creator:
Adams, John W.; Gude, Arthur J., III & Beroni, E. P.
System:
The UNT Digital Library
Preliminary Report on 1952 Field Investigations in Wet Mountains, Colorado
From page 3: A metallogenic province containing thorium in veins in pre-Cambrian rocks along the western slope of the Wet Mountains, Colo. found by the Reconnaissance Group of the U. S. Geological Survey during the summer of 1950,was revealed by the discovery during fiscal-years 1951-1952 of seventeen radioactive deposits scattered along a north-northwest linear distance of twenty miles. All the thorium occurrences were found within terrain that has never been geologically mapped. Three of the most promising localities were mapped at 1:1,200, and a diamond-drilling program was conducted at Haputa ranch.
Date:
1953
Creator:
Singewald, Q. D.; Christman, Robert A. & Brock, M. R.
System:
The UNT Digital Library
Preliminary Report on the Mineral Hill Monazite Deposits, Lemhi County, Idaho
From abstract: The Mineral Hill monazite deposits, 3 to 5 miles northeast of the town of Shoup, Lemhi County, Idaho, were investigated by the U. S. Geological Survey in July 1952. The deposits are replacement veins and lenses along shears in a pendant, principally of pre-Cambrian biotite gniess, about 4 to 5 miles in size and enclosed by granite of the Idaho batholith. The veins consist predominantly of calcite, monazite, and allanite, and contain minor quantities of barite, magnetite, rutile, and apatite.
Date:
April 1953
Creator:
Sharp, W. N. & Cavender, W. S.
System:
The UNT Digital Library
A Numerical Method for Two-Dimensional Lagrangian Hydrodynamics
Abstract: "A completely Lagrangian scheme for differencing hydrodynamical equations in two dimensions is described. The method conserves mass exactly. The advantages of Lagrangian over Eulerian schemes are briefly mentioned. An appendix gives the generalization to three dimensions."
Date:
December 10, 1953
Creator:
DeWitt, Bryce S.
System:
The UNT Digital Library
Lunar Height Changes in the E-Layer
Abstract: "The height changes produced by vertical electronic diffusion in the presence of negative ions are examined in some detail. Application of the results to the E-layer shows that a previous qualitative discussion remains valid."
Date:
October 1953
Creator:
Johnson, M. H.
System:
The UNT Digital Library
The Valve Actuated Pulse Column Design
Abstract: "The valve-actuated pulse column is employed to give phase separation on each half cycle in the countercurrent flow cycle and provides independent control over each step in the cycle. The dependence on temperature of operation, on pulse frequency and amplitude, and on plate design and spacing has been studied for extraction and stripping of uranium with tributyl phosphate in a hydrocarbon diluent. It is found that the efficiency increases quite significantly as the temperature is raised regardless of the direction of transfer and this increased efficiency is accompanied by greater operational freedom. A decrease in hole size, decrease in plate separation and increase in frequency all lead to higher efficiency in agreement with the concept that small drops continually formed coalesced and reformed, lead to maximum interphase transfer. The high extraction efficiency of the column is probably aided further by the relatively sharp pulse produced."
Date:
February 16, 1953
Creator:
Burger, L. L. & Clark, L. H.
System:
The UNT Digital Library
Interim Report on Examination of Powder Metallurgy Slug from PT-105-313-4M
This report examines a uranium slug that has been produced by powder metallurgical methods and exposed in the 100-DR Pile and was deformed during pile exposure.
Date:
January 5, 1953
Creator:
O'Keefe, D. P.
System:
The UNT Digital Library
Effect of Boron Liner on Neutron Background in Cavity
Introduction: "In connection with conducting neutron experiments in a pit with earth and concrete walls, it was proposed that the background flux of neutrons might be reduced by lining the walls of the pit with a neutron absorber such as boron. To determine how much liner material would be desirable and what diminution in the neutron background could be expected, the following measurements were undertaken."
Date:
January 16, 1953
Creator:
Benveniste, Jack
System:
The UNT Digital Library
Water Adsorbed by Graphite at Various Relative Pressures
Summary: "The quantity of water adsorbed by graphite at various relative pressures has been determined and the data are presented in graphical and tabular form."
Date:
July 21, 1953
Creator:
Spalaris, C. N.
System:
The UNT Digital Library
The Abundance of the Principle Crustacea of the Columbia River and the Radioactivity They Contain
The following document describes data collected from a 14-month period of analyzing crustaceans containing radioactivity. Provided is information based on the change of radioactivity through seasonal changes.
Date:
June 25, 1953
Creator:
Coopey, R. W.
System:
The UNT Digital Library
Preliminary Results of the Ratio of PU²³⁹ Fission Cross Section to U²³⁵ Fission Cross Section
This report presents the final results from the investigation of the ratio of Pu-239 fission cross section to U-235 fission cross section. Three sets of plutonium and uranium foils were prepared at KAPL and were investigated to acquire the final results.
Date:
February 20, 1953
Creator:
Leonard, B. R.
System:
The UNT Digital Library
Hanford Works Analytical Manual for Reactor Process Water
Purpose: "The Hanford Works Analytical Manual for Process Water is designed to specify the analytical methods to be applied for control purposes in the Reactor Section, Process Sub-Section laboratories. The procedures are in general form and serve as references rather than outlined laboratory instructions. The manual us designed to replace the "Hanford Works Manual," HW-12862."
Date:
February 13, 1953
Creator:
Hanford Works
System:
The UNT Digital Library