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Leaching and Precipitation Tests on Grants Ores

Description: Leaching tests were run on two samples from the Grants area in New Mexico. Uranium extractions of 94 per cent were obtained by leaching Sample 6-1 with solutions containing 240 lbs. of Na2CO3 and 60 lbs. of NaHCO3 per ton and by leaching Sample 6-2 with 270 lbs. of Na2CO3 and 180 lbs. of NaHCO3 per ton. Cyclic tests were completed using caustic precipitation of the leach liquor.
Date: September 10, 1951
Creator: Abrams, Charles S. & George, D'Arcy R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pile modification resulting in increased power levels

Description: The power output of the piles is being restricted primarily by three important limitations; those due to graphite temperatures, slug and tube corrosion and maximum power per tube or ``boiling disease.`` The purpose of this document is to present means for increasing very appreciably the ``boiling disease`` limits. In addition, means for alleviating the corrosion limitations will be discussed.
Date: July 10, 1951
Creator: Carbon, M. W. & Fryar, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Graphic Analysis of American and British Axial-Flow Turbojet Engine Performance Trends (Current and Future)

Description: From Summary: "This report presents a compilation of static sea-level data on existing or designed American and British axial-flow turbojet engines in terms of basic engine parameters such as thrust and air flow. In the data presented, changes in the over-U engine performance with time are examined as well as the relation of the various engine parameters to each other."
Date: December 10, 1951
Creator: Cesaro, Richard S. & Lazar, James
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Graphite Sample Boring from Process Channels : Final Report, Production Test 105-389-P

Description: The following report records a total of forty-nine graphite core samples that have been bored from process tube blocks in the Hanford piles with the intention to provide results to indicate that core boring is an entirely practical operation over bore scraping in obtaining powder samples.
Date: July 10, 1951
Creator: Cole, J. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Graphite Sample Boring from Process Channels : Final Report, Production Test 105-389-P

Description: The following report records a total of forty-nine graphite core samples that have been bored from process tube blocks in the Hanford piles with the intention to provide results to indicate that core boring is an entirely practical operation over bore scraping in obtaining powder samples.
Date: July 10, 1951
Creator: Cole, J. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Production Test 105-389-P graphite sample boring from process channels. Final report

Description: The study of radiation damage to the graphite moderator is largely dependent upon the availability of graphite samples from the moderator itself. Because of the varied temperature-flux history and complicated structure of the piles, it is impossible to study the problem from the laboratory standpoint alone. The samples of greatest interest are those taken from the sections of the moderator which have received the greatest damage. However, a comprehensive study requires samples from all sections… more
Date: July 10, 1951
Creator: Cole, J. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Compilation and review of effects of design parameters on ditching characteristics

Description: From Summary: "This paper supplements a previously published one on the effect of design parameters on ditching characteristics. The supplementary information is based on additional data available from both model tests and full-scale experience. In addition, summary tables compiled from the NACA model ditching investigations are presented."
Date: July 10, 1951
Creator: Fisher, Lloyd J. & Hoffman, Edward L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of altitude starting and acceleration characteristics of J47 turbojet engine

Description: An investigation was conducted on an axial-flow-compressor type turbojet engine in the NACA Lewis altitude wind tunnel to determine the operational characteristics of several ignition systems, cross-fire tube configurations and fuel systems over a range of simulated flight conditions. The opposite-polarity-type spark plug provided the most satisfactory ignition. Increasing the cross-fire-tube diameter improved intercombustor flame propagation. At high windmilling speeds, accelerations to approx… more
Date: January 10, 1951
Creator: Golladay, Richard L. & Bloomer, Harry E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Theoretical performance of lithium and fluorine as a rocket propellant

Description: Theoretical performance for liquid lithium and liquid fluorine as a rocket propellant was calculated with assumptions both of equilibrium and frozen composition during expansion. Parameters included were specific impulse, combustion-chamber temperature, nozzle-exit temperature, composition, mean molecular weight, characteristic velocity, coefficient of thrust, and ratio of nozzle-exit area to throat area. For chamber pressure of 300 pounds per square inch absolute and expansion to 1 atmosphere,… more
Date: May 10, 1951
Creator: Gordon, Sanford & Huff, Vearl N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Impact Extrusion of Uranium

Description: Uranium has been successfully impact extruded into typical cylindrical shapes of conventional design. Extrusion was carried out in the "gamma" region by heating cast uranium slugs to a temperature of approximately 1050 degrees C. Protection against oxidation was afforded by surrounding the slugs during heating with an inert atmosphere of argon gas. Impact extruded shapes possessed physical properties which are better than the properties of as-cast metal. Also, extruded shapes show a uniform int… more
Date: January 10, 1951
Creator: Hanks, G. S.; Jaynes, G. E.; Taub, J. M. & Doll, D. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A biharmonic relaxation method for calculating thermal stress in cooled irregular cylinders

Description: A numerical method was developed for calculating thermal stresses in irregular cylinders cooled by one or more internal passages. The use of relaxation methods and elementary methods of finite differences was found to give approximations to the correct values when compared with previously known solutions for concentric circular cylinders possessing symmetrical and asymmetrical temperature distributions.
Date: May 10, 1951
Creator: Holms, Arthur G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Decontamination of Uranium from Fission Products by the Use of the Uranyl Oxalate Precipitation Reaction

Description: Abstract: "Decontamination factors of the order of 10-4 were obtained for Beta and Gamma emitters present as fission products when uranium was precipitated from 50 mC activity level solutions as uranyl oxalate under normal uranium yield conditions for three cycles (~60%). Factors of the order of 10-3 were obtained by the use of this reaction with similar solutions under relatively high uranium yield conditions for three cycles (~90%). The uranium peroxide precipitation reaction proved to be of … more
Date: May 10, 1951
Creator: Kelchner, B. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental Study of the Effect of Sweepback on Transonic Aileron Flutter

Description: Report presenting the effects of sweepback on the occurrence and principal characteristics of single-degree-of-freedom aileron flutter for a wing-aileron combination. Testing occurred over a range of Mach and Reynolds number and angles of attack. Results regarding the measurements of aileron motion, effect of sweep, variation of lift coefficient, and use of shadowgraph technique for visualizing flow are provided.
Date: September 10, 1951
Creator: Levy, Lionel L., Jr. & Knechtel, Earl D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemistry Division Quarterly Progress Report for Period Ending March 31, 1951

Description: Quarterly technical report including reports on chemistry of source, fissionable, and structural elements, nuclear chemistry, radio-organic chemistry, chemistry of separations processes, chemical physics, radiation chemistry, and instrumentation. [From Abstract]
Date: May 10, 1951
Creator: Lind, S. C.; Boyd, G. E. & Bredig, M. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Low-Speed Investigation of the Effects of Single Slotted and Double Slotted Flaps on a 47.7 Degree Sweptback-Wing: Fuselage Combination at a Reynolds Number of 6.0 X 10(Exp 6)

Description: Report presenting an investigation to determine the effects of partial-span single slotted and double slotted flaps at various deflections on the longitudinal aerodynamic characteristics of a sweptback-wing-fuselage combination. Results regarding the lift characteristics, pitching-moment characteristics, drag characteristics, and effect of flap-bracket alignment are provided.
Date: September 10, 1951
Creator: Mollenberg, Ernst F. & Spooner, Stanley H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Solvent Extraction Method for Neptunium (237) Analysis

Description: Technical report describing a rapid and quantitative radiochemical method for the analysis of neptunium (237). This method is based on the extraction of neptunium (IV) with thenoyl-trifluoracetone in xylene. Neptunium (237) is separated free from other alpha emitters and from non-radioactive interferences, and the method may be readily adapted to remote control. [From Abstract]
Date: July 10, 1951
Creator: Moore, Fletcher L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effects of spanwise thickness variation on the aerodynamic characteristics of 35 degree and 45 degree sweptback wings of aspect ratio 6: transonic-bump method

Description: Report presenting an aerodynamic investigation in the high-speed 7- by 10-foot tunnel to determine the effects of taper-in-thickness on the aerodynamic characteristics of wings with 35 and 45 degrees of sweepback, aspect ratio 6, and taper ratio 0.60. The wings were tested over a range of Mach numbers.
Date: July 10, 1951
Creator: Morrison, William D., Jr. & Fournier, Paul G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The transonic characteristics of 17 rectangular, symmetrical wing models of varying aspect ratio and thickness

Description: Report presenting an investigation to determine the aerodynamic characteristics of a series of thin, rectangular wings in the 16-foot high-speed wind tunnel using the transonic bump technique over a range of Mach and Reynolds numbers. Lift, drag, and pitching moment characteristics are presented for wings of 4 different aspect ratios and NACA 63A0XX sections and with 5 different thickness-to-chord ratios.
Date: May 10, 1951
Creator: Nelson, Warren H. & McDevitt, John B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

RM line equipment problems associated with a proposed increase in batch size

Description: The effect made on the RM (Remote Mechanical) Line equipment by an increase in the plant batch size from ca. 300 grams to ca. 375 grams has been studied. Using the process as determined by Production Test 234-3, the volumes for a 300 gram batch and a 375 gram batch are as follows, respectively: volume of plutonium peroxide (alcohol washed, filtered)--1,275 cc., 1,593 cc.; volume of plutonium tetrafluoride (as produced)--617.7 cc., 772 cc.; and volume of reduction charge (tamped)--511 cc., 638 c… more
Date: September 10, 1951
Creator: Quinn, F. J., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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