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Feasibility Study, Optimum Natural Uranium, Gas Cooled, Graphite Moderated Nuclear Power Plant for United States Atomic Energy Commission, Idaho Operations Office

Description: Report containing "a discussion of the feasibility design and cost estimates for a gas cooled, natural uranium, graphite moderated power plant optimized for minimum power cost" (p. 3).
Date: April 1, 1958
Creator: ACF Industries Incorporated. Nuclear Products - ERCO Division.
Partner: UNT Libraries Government Documents Department
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Liquid Thermal Diffusion

Description: This volume is one set of a series which has been prepared as a record of the research work done under the Manhattan Project and the Atomic Energy Commission.
Date: January 1, 1951
Creator: Abelson, Philip H.; Rosen, Nathan & Hoover, John I.
Partner: UNT Libraries Government Documents Department
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Reactions yielding volatile oxides at high temperatures free energies of gaseous Al$sub 2$O, ZrO, ThO, TaO, ZrO$sub 2$, ThO$sub 2$, TaO$sub 2$, UO$sub 2$, and WO$sub 3$

Description: Although the oxides such as Al/sub 2/O/sub 3/, MgO, UO/sub 2/, ThO/sub 2/ , Be O, and ZrO/sub 2/ are used as refractory materials, very little reliable thermodynamic data predicting the stabilities of the gases in equilibrium with the solids at temperatures above 1700 deg C exist. In most cases the vapor pressures are not accurately known and in some cases the gaseous molecules are uncertain. Hence one experiences difficulties in attempting to predict ihe interaction of these oxides with the re… more
Date: January 1, 1958
Creator: Ackermann, R. J. & Thorn, R. J.
Partner: UNT Libraries Government Documents Department
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Van Slyke Factors for Hydrogen, Oxygen, Carbon Dioxide, and Carbon Monoxide

Description: Tables of data calculated on an IBM 610 automatic computer are given to convert the measured pressure differences in the Van Slyke gas analysis apparatus into micromolar concentration of gas in solution for hydrogen, oxygen, carbon dioxide and carbon monoxide in water. Measured solubility coefficients for carbon dioxide in various aqueous solutions of formic acid are given together with the conversion factors for use with the Van Slyke analysis apparatus. (auth)
Date: April 1, 1959
Creator: Adams, G. E. & Anderson, A. R.
Partner: UNT Libraries Government Documents Department
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TEMPERATURE DEPENDENCE OF TAFEL SLOPE IN THE FORMATION OF VERY THIN ANODIC OXIDE FILMS ON NIOBIUM

Description: A kinetic study was made of the formation of very thin anodic oxide films on niobium at constant current over the temperature range --10 to 70 deg C. Formation voltages were limited to the range below the oxygen evolution potential to eliminate possible interaction of an electronic component of the current with the measured formation field. It was found that the measured temperature dependence of Tafel slope agreed with that predicted by the theory of Mott and Cabrera. Using this theory, a zero… more
Date: January 1, 1957
Creator: Adams, G.B. Jr. & Kao, T.
Partner: UNT Libraries Government Documents Department
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Extraction of Uranium, Magnesium, Zirconium, and Cerium From Bismuth With a Fused Fluoride Salt Mixture

Description: The extraction of uranium, magnesium, cerium, zirconium, and niobium from bismuth with a molten mixture of sodium fluoride and zirconium fluoride was demonstrated. Comparative rates of extraction were obtained. The effects of high concentrations of magnesium and of hydrogen fluoride sparging on the extraction process were investigated. Tracer studies demonstrated that exchange occurs between zirconium dissolved in the bismuth and zirconium in the fused salt. The applicability of the fused fluor… more
Date: June 1, 1959
Creator: Adams, M. D.; Fischer, J.; Meyer, R. J. & Phillips, N. D.
Partner: UNT Libraries Government Documents Department
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The Transfer of Plutonium Hexafluoride in the Vapor Phase

Description: Plutonium hexafluoride is decomposed by heat, by its alpha radiation, and by reactions with most materials of construction. Laboratory experiments were performed to investigate means by which plutonium losses due to these reactions can be minimized during vapor-phase transfers of the compound. The experiments showed that plutonium hexafluoride vapor could be transferred satisfactorily through well fluorinated nickel equipment in a stream of fluorine or helium. The decomposition product of pluto… more
Date: October 1, 1957
Creator: Adams, M. D.; Steunenberg, R. K. & Vogel, R. C.
Partner: UNT Libraries Government Documents Department
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Estimate of the Probability and Consequences of Ignition of the HRT Charcoal Beds

Description: BS>The igition temperature of Columbia G activated charcoal in a flowing oxygen stream was determined to be 290 deg C under conditions simulating the inlet of the HRT charcoal beds. Calculations of charcoal temperatures resulting from beta decay of adsorbed fission gases from the HRT indicate that this temperature will not be reached provided the reacter power does not exceed 10 Mw with an accompanying oxygen flow not exceeding 2 liters/min. At lower power levels higher oxygen flow may be toler… more
Date: June 1, 1958
Creator: Adams, R. E. & Browning, W. E.
Partner: UNT Libraries Government Documents Department
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FISSION GAS HOLDUP TESTS ON HRT CHARCOAL BEDS

Description: Fission gas holdup tests on the HRT charcoal beds under simulated operating conditions are complete. A radioactive tracer technique developed for use in laboratory absorption studies was utilized. The efficiency of the charcoal beds, in regard to holdup of fission gases, exceeds design specifications. On the basis of these tests, the charcoal beds should perform satisfactorily with the l#T operating at 10 Mw with a total oxygen flow of 3 liters/min. or at 5 Mw with a total oxygen flow of 3.5 li… more
Date: April 1, 1958
Creator: Adams, R. E. & Browning, W. E.
Partner: UNT Libraries Government Documents Department
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REACTION OF NITROGEN WITH NIOBIUM

Description: Reaction rates of niobium with nitrogen were determined gravimetrically from 675. to 875 deg C with a recording microbalance and volumetrically from 1100 to 1600 deg C with a modified Sieverts apparatus. Diffusion coefficients and terminal solubilities were determined from 800 to 1600 deg C by the concentration- gradient technique. Tne reaction of nitrogen with niobium follows a parabolic rate law at 675 to 1600 deg C. The expression for the diffusion coefficient for nitrogen in niobium at 800 … more
Date: July 1, 1959
Creator: Albrecht, William M. & Goode, W. Douglas, Jr.
Partner: UNT Libraries Government Documents Department
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REACTIONS IN THE NIOBIUM-HYDROGEN SYSTEM

Description: Equilibria in the niobium- hydrogen system were determined in the range 100 to 900- deg , 0.1 to 1000 mm of mercury hydrogen pressure, and hydrogen/ niobium atomic ratios of 0.01 to 0.85. X-ray measurements were obtainpd at 25 to 400 deg C at hydrogen/niobium ratios up to 0.54. The studies showed thnt a solid solution of hydrogen in niobium is produced throughout most of the system. A miscibility gap was found at low temperatures and pressures, with a critical point at about a temperature of 14… more
Date: April 1, 1959
Creator: Albrecht, William M.; Goode, W. Douglas, Jr. & Mallett, Manley W.
Partner: UNT Libraries Government Documents Department
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Pressure Induced Metallic Transitions in Insulators

Description: Experimental evidence that several ionic and molecular crystals become conductors in the metallic range at ~ 250,000 atm. is presented. For some the transition pressure is roughly defined. (T. R.H.)
Date: November 1, 1957
Creator: Alder, B. J. & Christian, R. H.
Partner: UNT Libraries Government Documents Department
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HEAT RELEASE IN NUCLEAR REACTORS

Description: Discussions are included on energy sources and modes of local deposition of heat, fission fragment and BETA decay energy, neutron energy, energy release by BETA decay of activated nuclei, neutron flux distribution, gamma heating calculations, and integration of the gamma heating equation for simple cases. (M.H.R.)
Date: October 1, 1956
Creator: Alexander, L.G.
Partner: UNT Libraries Government Documents Department
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Technical activities report heat, water, and mechanical studies

Description: The heat studies include: automatic time-delay relay for Panellit System; heating of fuel rods; installation of a thermocouple slug; effect of tube length and annulus on tube power; pressure drop film studies; full scale mock-up; flow tests; front to rear enrichment of B, D, and F piles; electrical analog studies; studies on thermal and biological shields; and recirculating system heat exchangers. Some of the topics discussed in the water studies section are: the 100-D flow laboratory; film for… more
Date: December 1, 1951
Creator: Alexander, W. K.
Partner: UNT Libraries Government Documents Department
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Technical activities report: Mechanical development studies

Description: This monthly progress report covers activities in the following areas: pile control; shielding studies; process tube assembly; pile operating equipment; power recovery; pile piping; and test laboratory. A detailed discussion is given for each topic.
Date: May 1, 1952
Creator: Alexander, W. K.
Partner: UNT Libraries Government Documents Department
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