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An Apparatus for the Study of Thermoluminescence from Minerals

Description: This report discusses an apparatus that has been constructed to record the thermoluminescence of a mineral in the form of a powder or a single crystal at temperatures from -100 C to +400 C.
Date: July 1957
Creator: Ashby, G. E. & Kellagher, R. C.
Partner: UNT Libraries Government Documents Department
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Betatron Oscillation Frequency Shift Due To "N-Errors"

Description: "Expressions are found to relate DELTA gamma to the n-errors.'' It is demonstrated that the integral n-value concept'' is of no use in the present case. A modification of integrated n-value'' is suggested."
Date: July 1, 1957
Creator: Lanza, G. & Steffen, Klaus G.
Partner: UNT Libraries Government Documents Department
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Chemical Engineering Division Summary Report for January, February, and March 1957

Description: A fused fluoride process for dissolution of zirconium-uranium fuel alloys is being developed. The alloy is dissolved in an equimolar sodium fluoride-zirconium fluoride melt at 600°C by sparging the system with hydrogen fluoride. The uranium is volatilized from the melt as the hexafluoride by a sparging operation with fluorine or bromine pentafluoride vapor. This product is then decontaminated and purified by fractional distillation.
Date: July 1957
Creator: Lawroski, Stephen; Rodger, W. A.; Vogel, R. C. & Munnecke, V. H.
Partner: UNT Libraries Government Documents Department
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Determination of Thorium in the Parts Per Million Range in Rocks

Description: Abstract: "A procedure for the determination of thorium in the concentration range of 0.2 to 10 parts per million ThO2 in felsic or mafic rocks. Thorium is extracted by mesityl oxide and purified by iodate precipitation from nitric acid medium containing tartaric acid and hydrogen peroxide. The thorium is determined spectrophotometrically with thoron from meso-tartaric acid medium."
Date: July 1957
Creator: Levine, Harry & Grimaldi, Frank S.
Partner: UNT Libraries Government Documents Department
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The Effect of Sodium Vapor Formation on the Operation of the Enrico Fermi Reactor : an Estimate

Description: This technical report presents the results of some simplified calculations concerning the two-phase flow of sodium in the Enrico Fermi reactor. The rather large value for the specific volume of sodium vapor coupled with the resistance of the top axial blanket sections resulted in large pressure drops for even small values (by weight) of net vapor. It is concluded that the formation of any sodium vapor in the Enrico Fermi reactor produces "boiling disease", i.e. triggers an unstable condition wh… more
Date: July 1957
Creator: Kroeger, H. R. & Stephenson, J. W.
Partner: UNT Libraries Government Documents Department
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Elastic Scattering of 7 Mev Neutrons (Theoretical Curves)

Description: Abstract: "Theoretical differential cross-sections computed from the optical model for 7 Mev neutrons are presented for a large number of nuclei. The parameters used for the calculations were selected on the basis of best fit to existing experimental data."
Date: July 1957
Creator: Bjorklund, F. & Fernbach, Sidney, 1917-1991
Partner: UNT Libraries Government Documents Department
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Elastic Scattering of 14 Mev Neutrons (Theoretical Curves)

Description: Abstract: "Theoretical differential cross-sections computed from the optical model for 14 Mev neutrons are presented for a large number of nuclei. The parameters used for the calculations were selected on the basis of best fit to existing experimental data."
Date: July 1957
Creator: Bjorklund, F. & Fernbach, Sidney, 1917-1991
Partner: UNT Libraries Government Documents Department
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Geologic Investigations of Radioactive Deposits

Description: The following report is a statement of the Geological Survey's progress on the investigation of the fundamental geology, mineralogy, and geochemistry of uranium and other radioactive materials with the intention of discovering and delimiting areas favorable for the future production of uranium and other radioactive ores. This report covers the period from December 1, 1956 to May 31, 1957.
Date: July 1957
Creator: Geological Survey (U.S.)
Partner: UNT Libraries Government Documents Department
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Manual of Radiation Protection Standards

Description: "The following is an alphabetical listing of terms and units in common usage at HAPO. Other terms and definitions may be added as the need becomes apparent or as revisions or additional terms are issued by the NCRP and ICRP."
Date: July 1957
Creator: General Electric Company
Partner: UNT Libraries Government Documents Department
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Mineralogy, Internal Structural and Textural Characteristics, and Paragenesis of Uranium-Bearing Veins in the United States

Description: The following report summarizes and reviews some of the recent [1957] mineralogic information relevant to uranium-bearing veins in the United States, as well as describing some of the reported mineralogic associations and the modes of occurrence of the uranium minerals in vein deposits. This paper is a chapter of a larger and more comprehensive report entitled, "Geology of Uranium-Bearing Vein Deposits in the United States".
Date: July 1957
Creator: Walker, George W. & Adams, John W.
Partner: UNT Libraries Government Documents Department
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National Motor-Gasoline Survey: Winter 1956-57

Description: Report issued by the U.S. Bureau of Mines discussing surveys conducted on the motor gasoline sold during the winter of 1956-1957. The amount, location, and price of gasoline sold during this time are presented. This report includes tables, illustrations, and a map.
Date: July 1957
Creator: Blade, O. C.
Partner: UNT Libraries Government Documents Department
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Nuclear Decay Schemes in the Actinium Family

Description: Abstract: "With magnetic alpha-particle and electron high-resolution spectrographs and scintillation gamma-ray spectrometers, a study was made of the nuclear decay of a number of members of the actinium family - U-235, Th-227, Ra-223, Em-219, Po-215, and Bi-211. Decay schemes are presented for each of these nuclides, together with such correlations as are possible with present theoretical nuclear models. The decay scheme of U-235 and a portion of that of Th-227 are interpretable in terms of the… more
Date: July 1957
Creator: Pilger, Richard Christian, Jr.
Partner: UNT Libraries Government Documents Department
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Petrographic Study of Sandstone of the Inyan Kara Group (Cretaceous) and Associated Rocks in the Black Hills, Wyoming and South Dakota

Description: The following report covers the Petrographic study of Early Cretaceous age sandstone beds in the Fall River formation and the Fuson-Lakota formations, as well as Late Jurassic age beds in the underlying Unkpapa and Morrison formations along the western side of the Black Hills.
Date: July 1957
Creator: Bergenback, R. E.; Chisholm, W. A. & Mapel, W. J.
Partner: UNT Libraries Government Documents Department
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A Study of Uranium Deposits in the Copper Mountain Area: Fremont and Hot Springs Counties, Wyoming

Description: Report documenting a study of the Copper Mountain area to "evaluate the potential uranium production to determine, if possible, the origin and conditions of deposition of the uranium; and suggest possible guides to prospecting in this and geologically similar areas. All known radioactive deposits were examined and samples were collected for special studies and for assay of uranium content" (p. 5).
Date: July 1957
Creator: Loomis, Tom H. W. & Marks, Lawrence Y.
Location: See Bounding Coordinates
Partner: UNT Libraries Government Documents Department
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Summary Report - APDA Activities

Description: "Continued negotiations with combustion engineering culminated in the signing of a contract for the detail design and fabrication of the reactor vessel and rotating shield plug and plug container."
Date: July 1957
Creator: Atomic Power Development Associates, Inc.
Partner: UNT Libraries Government Documents Department
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The Partition of Oxygen Between Sodium and Tantalum

Description: We now proceed by finding a relation between the O2 pressure and the mole fraction of oxygen in the condensed phase for each phase and then equate the O2 pressures to get a relation between the mole fractions of oxygen in the two phases.
Date: July 2, 1957
Creator: Holley, Charles E. Jr.
Partner: UNT Libraries Government Documents Department
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Sodium Boiling Calculations

Description: The equations are derived for making rough calculations of the pressure drop required to produce a given mass flow through a subassembly for a given heat generation for cases where the vapor volume fraction is 0.9 or less. The ratio of vapor velocity to liquid velocity is left as a parameter that is varied form unreasonably low to unreasonably high values.
Date: July 2, 1957
Creator: Nicholson, R. B.
Partner: UNT Libraries Government Documents Department
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Radiation Level in the Stator Region of the HRT Fuel Circulation Pump

Description: The gamma dose rate in the motor region of the HRT fuel circulation pump was measured with the pump scroll full of radioactive solution. Extrapolation of the data to the solution activity expected in the pump under normal operation gives a dose rate well below that which would result in excessive gas production in the stator can within the life of the pump. The above dose rate does not include the effects of fast neutrons from the fuel solution or of the general cell radiation level in the vici… more
Date: July 3, 1957
Creator: Engel, J. R.
Partner: UNT Libraries Government Documents Department
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