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Preparation of Be7 Without Inert Carrier

Description: After bombardment with deuterons, Li metal was dissolved with dilute acid. From this solution Be7 was precipitated as Be(CH)2 on Fe carrier using NH4CH. The contaminates remained in the filtrate. After repeated precipitations in the presence of appropriate holdback carriers, the Fe was extracted with iso-propyl ether, leaving the pure Be7 solution.
Date: May 10, 1946
Creator: Jacobson, L. & Overstreet, R.
Partner: UNT Libraries Government Documents Department
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The Preparation of High-Purity Beryllium Oxide

Description: Abstract. A method for the preparation of beryllium oxide of high purity is presented. Beryllium basic acetate (BeO-3Be(C2H3O2)2) is prepared from the metal or a convenient salt, a chloroform solution of this material extracted with redistilled water, the dried basic acetate distilled in a quartz apparatus, and this purified material converted to the oxide by fuming down with sulfuric acid and igniting at 1000 degrees C. Impurities detectable spectrographically were reduced to a very low leveā€¦ more
Date: May 27, 1946
Creator: Tomkins, F. S.; Cressman, G. W. & Tolmach, L. J.
Partner: UNT Libraries Government Documents Department
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Electrolytic Reduction of Uranyl Ion

Description: From introduction: "Due to the hydrogen overvoltage at the surface of a mercury cathode, uranium solutions is hydrochloric acid may be reduced not only to the tetravalent state, but until considerable trivalent uranium is formed. Other metallic ions act as oxidation-reduction catalysts as well as being reduced themselves. The following paper is a study of the various reactions taking place in solution and at the surface of the cathode."
Date: May 27, 1946
Creator: Nichols, Ambrose R., Jr.
Partner: UNT Libraries Government Documents Department
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The Beta-Gamma Hand and Foot Counters

Description: Abstract: This is basically a counting rate meter, with an alarm circuit, operating from four GM tubes as the detecting elements. The Hand Counter comprises four logarithmic counting rate meters working from four GM tubes mounted individually, with associated electronic circuits, in suitable shields with a metal mesh type of window. Both sides of both hands are sampled simultaneously. In the Foot Counter, two GM tubes are separately and mounted in a suitable mesh window shielded with the elā€¦ more
Date: May 1946
Creator: Bradley, W. H.
Partner: UNT Libraries Government Documents Department
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100 Areas: (For Technical Progress Letter No. 97), May 7--13

Description: Physics information for the D and F piles is presented. Thermal conductivity, reactivity, and irradiation levels are included. Concerning the cooling systems: process water control, pressure drip studies, purging studies, corrosion, and gun barrel clearance of expanded graphite are discussed. (GHH)
Date: May 17, 1946
Creator: Jordan, W. E.
Partner: UNT Libraries Government Documents Department
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100 Areas: (For technical progress letter No. 95), April 23--29

Description: Reported are: physics (B Pile, D Pile, F Pile, general physics); and water, corrosion and engineering (process water control and pressure drop studies, corrosion, graphite expansion).
Date: May 3, 1946
Creator: Jordan, W. E.
Partner: UNT Libraries Government Documents Department
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Production test 105-2-P (Supplement A) - Activity of pile discharge water (Activation of manganese and iron)

Description: This report discusses the Production Test 105-2-P (Supplement A) -- Activity of Pile Discharge Water. Previous studies of pile discharge water have shown that one of two processes is responsible for the large but variable amount of Mn{sup 56} activity present in the water. One process is the production of Mn{sup 56} by the reaction Mn{sup 55} on manganese impurity in the water. The amount of such impurity has been shown to be too small to produce the observed amount of Mn{sup 56} unless the meaā€¦ more
Date: May 8, 1946
Creator: West, J.M.
Partner: UNT Libraries Government Documents Department
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The Deposition of Plutonium and Certain Fission Products in Bone as a Decontamination Problem

Description: The following report discusses the deposition of radioactive elements during a nuclear fission in the skeleton. Studies are concerned with chronic effects of toxic radiation developing within the bone marrow and decontaminating the cells.
Date: May 15, 1946
Creator: Copp, D. Harold; Greenberg, David M. & Hamilton, Joseph G.
Partner: UNT Libraries Government Documents Department
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The Coprecipitation of Thorium and Uranium Peroxides

Description: From abstract: "Experiments covering the coprecipitation of Thorium and Uranium peroxides are described on synthetic and actual 1300 cycle machine wash effluents."
Date: May 10, 1946
Creator: Oringer, Roy; Woodard, R. W. & Larson, C. E.
Partner: UNT Libraries Government Documents Department
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The Production of Uā‚‚ā‚ƒā‚„ by a Modified Calutron

Description: Abstract: Three and nine-tenths milligrams of U234 have been produced using a Calutron. A Beta-size Calutron was modified to produce complete resolution of the U234 beam from the U235 beam. With Beta charge the U234 current was 4 microamperes. The samples were collected upon flat pieces of graphite bent to fit the E curve.
Date: May 21, 1946
Creator: McKinney, C. R.
Partner: UNT Libraries Government Documents Department
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Preliminary Report : Trace Elements Investigations in the Sweepstakes Creek Area, Koyuk District, Seward Peninsula, Alaska

Description: The following report provides information and findings of trace elements recognized in a few placer concentrates from Sweepstakes and Rube Creeks in the Koyuk district of eastern Seward Peninsula, Alaska when old collections were scanned for radioactivity in the spring of 1945.
Date: May 1946
Creator: Gault, H. Richard; Black, Robert F. & Lyons, John B.
Partner: UNT Libraries Government Documents Department
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The future of atomic energy

Description: There is definitely a technical possibility that atomic power may gradually develop into one of the principal sources of useful power. If this expectation will prove correct, great advantages can be expected to come from the fact that the weight of the fuel is almost negligible. This feature may be particularly valuable for making power available to regions of difficult access and far from deposits of coal. It also may prove a great asset in mobile power units for example in a power plant for sā€¦ more
Date: May 27, 1946
Creator: Fermi, E.
Partner: UNT Libraries Government Documents Department
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Charts of Thermodynamic Properties of Fluids Encountered in Calculations of Internal Combustion Engine Cycles

Description: "A single chart has been prepared that simplifies the calculation of the thermodynamic properties of air, various octene-air mixtures, and mixtures of those with their products of combustion at all temperatures below which chemical dissociation becomes unimportant. The chart is based on the use of 1 pound mol of mixture, and examples of its use are given in the form of the calculation of a turbocompressor power plant and a supercharged Otto engine cycle" (p. 1).
Date: May 1946
Creator: Hottel, H. C. & Williams, G. C.
Partner: UNT Libraries Government Documents Department
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Flutter and oscillating air-force calculations for an airfoil in two-dimensional supersonic flow

Description: A connected account is given of the Possio theory of non-stationary flow for small disturbances in a two-dimensional supersonic flow and of its application to the determination of the aerodynamic forces on an oscillating airfoil. Further application is made to the problem of wing flutter in the degrees of freedom - torsion, bending, and aileron rotations. Numerical tables for flutter calculations are provided for various values of the Mach number greater than unity. Results for bending-torsion ā€¦ more
Date: May 29, 1946
Creator: Garrick, I. E. & Rubinow, S. I.
Partner: UNT Libraries Government Documents Department
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Thin Oblique Airfoils at Supersonic Speed

Description: "The well-known methods of thin-airfoil theory have been extended to oblique or sweptback airfoils of finite aspect ratio moving at supersonic speeds. The cases considered thus far are symmetrical airfoils at zero lift having plan forms bounded by straight lines. Because of the conical form of the elementary flow fields, the results are comparable in simplicity to the results of the two-dimensional thin-airfoil theory for subsonic speeds" (p. 267).
Date: May 23, 1946
Creator: Jones, Robert T.
Partner: UNT Libraries Government Documents Department
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