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Principles and characteristics of surface radon and helium techniques used in uranium exploration

Description: Studies were carried out to determine the nature of some of the surface radon and helium techniques used for uranium exploration. By performing radon and helium measurements at three sites with differing geology and accessibility, we were able to examine the constraints on the features determined. The sites are the Red Desert in south central Wyoming, Copper Mountain in central Wyoming, and Spokane Mountain in eastern Washington. The radon techniques employed were: zinc sulfide detectors, an io… more
Date: September 1, 1980
Creator: Pacer, J.C. & Czarnecki, R.F.
Partner: UNT Libraries Government Documents Department
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Fundamental studies in isotope chemistry. Progress report, 1 July 1976--30 Jun 1977

Description: The current thrust of the program is the use of isotope effects to study the fundamental properties of matter, measurement and calculation of isotope fractionation factors of systems of potential technological importance and the correlation of isotope effects with molecular structure. The first measurements of the isotopic fractionation factors for two components in a solution were completed by the study of argon-krypton mixtures. The measurements cover the range from pure argon to pure krypton… more
Date: January 1, 1977
Creator: Bigeleisen, J. & Harris, T.H.
Partner: UNT Libraries Government Documents Department
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Mound Facility activities in chemical and physical research: January-June 1978

Description: Process automation continued in HH Building. Production of 7% /sup 38/Ar and 99.5% /sup 36/Ar, 128 g of 90+% /sup 13/C as elemental carbon, 445 g of 90+% /sup 13/C as methane, 3350 STP liters of 99.9% /sup 3/He and 100 STP liters of 99.9995% /sup 3/He, 99% /sup 86/Kr and 70% /sup 82/Kr, 100 liters of /sup 22/Ne, 0.4 STP liter of 40% /sup 124/Xe, 0.4 STP liter of 40% /sup 124/Xe, 0.3 STP liter of 5% /sup 124/Xe, 0.25 STP liter of 20% /sup 124/Xe, and 8.5 STP liters of 80% /sup 136/Xe were produc… more
Date: September 18, 1978
Partner: UNT Libraries Government Documents Department
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SDI: Statistical dynamic interactions

Description: We focus on the combined statistical and dynamical aspects of heavy ion induced reactions. The overall picture is illustrated by considering the reaction {sup 36}Ar + {sup 238}U at a projectile energy of 35 MeV/nucleon. We illustrate the time dependent bound excitation energy due to the fusion/relaxation dynamics as calculated with the Boltzmann master equation. An estimate of the mass, charge and excitation of an equilibrated nucleus surviving the fast (dynamic) fusion-relaxation process is us… more
Date: April 1, 1991
Creator: Blann, M.; Mustafa, M.G. (Lawrence Livermore National Lab., CA (USA)); Peilert, G.; Stoecker, H. & Greiner, W. (Frankfurt Univ. (Germany, F.R.). Inst. fuer Theoretische Physik)
Partner: UNT Libraries Government Documents Department
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Liquid-vapor isotope fractionation factors in argon--krypton binary mixtures

Description: An equilibrium isotope effect has been studied as a continous function of the potential field acting on the atom undergoing isotopic exchange. This has been accomplished through a study of the liquid vapor isotope fractionation factors for both /sup 36/Ar//sup 40/Ar and /sup 80/Kr//sup 84/Kr in a series of binary mixtures which span the range between the pure components at 117.5/sup 0/K. The /sup 36/Ar//sup 40/Ar fractionation factor increases (linearly) from (1n..cap alpha..) 2.49x10/sup -3/ i… more
Date: January 1, 1977
Creator: Lee, M. W.; Neufeld, P. & Bigeleisen, J.
Partner: UNT Libraries Government Documents Department
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Mound Laboratory activities for the Division of Physical Research: July--December 1975

Description: Research and development are reported in the following areas: isotope separation and production for Ar, C, He, Kr, Ne, O, S, and Xe; testing of cubic B crystals for superconductivity; metal hydride research on band theory and electronic structure and spin-lattice relaxation times for VH/sub x/; separation chemistry of Pu, /sup 231/Pa, /sup 230/Th, /sup 229/Th, and /sup 234/U; adsorption of U and Pu by bone char; separation research for Ca and S isotopes; molecular beam scattering for Ar--Kr; an… more
Date: May 14, 1976
Partner: UNT Libraries Government Documents Department
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Stable isotope sales: Mound Laboratory customer and shipment summaries, FY-1975

Description: A listing is given of Mound Laboratory's sales of stable isotopes of noble gases, carbon, oxygen, nitrogen, and sulfur for Fiscal Year 1975. Purchasers are listed alphabetically and are divided into domestic and foreign groups. A cross reference index by location is included for domestic customers. Cross reference listings by isotope purchased are included for all customers.
Date: April 30, 1976
Creator: Eck, C. F.
Partner: UNT Libraries Government Documents Department
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Nuclear interactions of high energy heavy ions and applications in astrophysics

Description: This program was established for the purpose of studying projectile fragmentation; (1) as a function of energy, focusing first on the intermediate energy region, < 1 GeV/nucleon, where there have been few previous measurements and no systematic studies, and (2) as a function of projectile mass, starting with light beams and proceeding to species as heavy as nickel (and possibly beyond). The intermediate energy region is important as the transition between the lower energy data, where the intera… more
Date: January 23, 1992
Creator: Wefel, J.P.
Partner: UNT Libraries Government Documents Department
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Nuclear interactions of high energy heavy ions and applications in astrophysics. Technical progress report, 1 April 1991--31 March 1992

Description: This program was established for the purpose of studying projectile fragmentation; (1) as a function of energy, focusing first on the intermediate energy region, < 1 GeV/nucleon, where there have been few previous measurements and no systematic studies, and (2) as a function of projectile mass, starting with light beams and proceeding to species as heavy as nickel (and possibly beyond). The intermediate energy region is important as the transition between the lower energy data, where the intera… more
Date: January 23, 1992
Creator: Wefel, J. P.
Partner: UNT Libraries Government Documents Department
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