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An Analysis of Project Data on the Corrosion of Uranium in Various Media

Description: This is a summarizing and reviewing report in which almost all the experimental data representing Project work done prior to 1949 on the corrosion of pure uranium are brought together and analyzed. New data obtained in this laboratory on corrosion rates in laboratory atmosphere and on the identification of corrosion products by electron diffraction are included. The data for corrosion in each of several different media have been plotted according to logarithm-of-the-rate versus reciprocal-tempe… more
Date: December 22, 1948
Creator: Waber, James T. (James Thomas), 1920-
Item Type: Refine your search to only Report
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Emission Probabilities of Prompt Neutrons from Spontaneous and Neutron-Induced Fission

Description: A method is developed for using the relatively easily measured fission parameters, together with the mass equation of fission and the evaporation model of the nucleus, to determine the emission probabilities of the fission neutrons. The distribution of the kinetic energies of the fragment pairs enters into these calculations in a sensitive manner. Neutron emission probabilities are computed for the fission of the compound nuclei U/sup 234/ U/sup 236/, and Pu/sup 240/, for which cases reasonably… more
Date: December 1954
Creator: Leachman, R. B.
Item Type: Refine your search to only Report
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Kinetics of the Los Alamos Power Reactor Experiment (LAPRE)

Description: A theoretical study of the kinetics of a model of the Los Alamos Power Reactor Experiment (LAPRE) was made through integration of the dynamic equations with the IBM 701 computer. The stability is investigated under various conditions of power demand, rod-induced reactivity changes, and other conditions especially applicable to LAPRE. The results are given in graphical form, along with conclusions as to appropriate conditions of operation.
Date: December 1953
Creator: Allred, John C. & Carter, David S., 1926-
Item Type: Refine your search to only Report
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Neutron Energy Distributions Inside the Fast Reactor

Description: This technical report presents results of nuclear plate work carried out to determine the neutron energy distribution inside the Los Alamos fast reactor. Most of the distributions which were investigated are valid over the energy region from 0.4 to 6 Mev. The results show that at the center of the reactor pot about 65% of the neutrons are located below 1 Mev in a rather narrow energy region which has a maximum in the neighborhood of 0.5 to 0.6 Mev. Above 2 Mev the energy distribution is similar… more
Date: December 15, 1950
Creator: Nereson, Norris G., 1918-2007
Item Type: Refine your search to only Report
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The Polarographic Determination of Titanium in Plutonium Solutions

Description: A polarographic method for the determination of titanium in the presence of plutonium has been devised. Hydrochloric acid solutions of plutonium and titanium are reduced with zinc, made one molar in tartaric acid, and further reduced in the polarographic cell with liquid zine amalgam. Plutonium is thus reduced to the non-interfering (III) oxidation state and a well defined anodic wave for the oxidation of titanium (III) to titanium (IV) is obtained. The height of this wave is directly proportio… more
Date: December 20, 1951
Creator: Smith, Maynard E. (Maynard Elliott)
Item Type: Refine your search to only Report
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Predicted Structure and Density of Beryllium Hydride

Description: Various properties of BeH/sub 2/ are predicted, based on the properties of neighboring hydrides. Included are predictions of the stability of the Be-H bond, the stability of an ionic lattice for BeH/sub 2/, polymeric structure, and density.
Date: December 1, 1953
Creator: Lemons, Jim F.; Lewis, W. B.; Fowler, R. D.; Staritzky, Eugene & Holley, Charles E., Jr.
Item Type: Refine your search to only Report
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Pressure Balance in a Toroidal Pinch

Description: Abstract: In the study of a linear pinch, use of the equation of pressure balance has proven to be a powerful method of analyzing data taken with a magnetic probe. The toroidal pinch, however, is a geometrically more complicated object, and the use of the pressure balance equations is not so clean cut. It is the object of this note to analyze the pressure balance equations for a torus to the point where they might prove useful in interpreting probe data.
Date: December 1958
Creator: Suydam, Bergen R.
Item Type: Refine your search to only Report
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Safety Tests for Melting and Casting Oralloy

Description: This report is a collection of data which were determined by several safety tests to assure safe procedures during the fabrication of Oy. These tests indicated that a 4 in. ID melting crucible which had become flooded from the cooling coils of the furnace would be critical with about 23.7 kg of Oy. A 5 in. ID crucible under similar conditions would be critical when it contained 21.3 kg. A series of measurements to simulate multiple crucibles in a melting furnace indicates that a flooded array o… more
Date: December 1953
Creator: Hart, Frederick F.
Item Type: Refine your search to only Report
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Specific Surface and Bulk Density of U3O8 and UO2 as Factors in UF4 Production on the 250 Gram Uranium Scale

Description: Specific surface and bulk density measurements were made on samples of 22 U308 materials which had been prepared by calcination at 900°C of widely differing uranium peroxide precipitates and had been evaluated as to "reactivity" by successive treatment with hydrogen and a mixture of anhydrous hydrogen fluoride and hydrogen in a production-type batch process for the preparation of UF4. Specific surface and bulk density measurements were also made on samples of the 22 corresponding U02 intermedia… more
Date: December 1954
Creator: Bard, R. J.; Fry, O. E. & Kewish, R. W.
Item Type: Refine your search to only Report
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Spontaneous Fission of 48

Description: Report discussing an experiment to reinvestigate the spontaneous fission of 48 (Pu-238) in an effort to determine a more accurate value for the spontaneous fission constant that was found in a previous experiment.
Date: December 19, 1949
Creator: Jungerman, John A.
Item Type: Refine your search to only Report
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Uranium Hydrogeochemical and Stream Sediment Reconnaissance of the Pueblo NTMS Quadrangle, Colorado, Including Concentrations of Forty-Three Additional Elements

Description: From summary: This report describes work done in the Pueblo National Topographic Map Series (NTMS) quadrangle, Colorado, by the Los Alamos Scientific Laboratory (LASL) as part of the nationwide Hydrogeochemical and Stream Sediment Reconnaissance (HSSR).
Date: December 1978
Creator: Shannon, Spencer S., Jr.
Item Type: Refine your search to only Report
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