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The Viscosity of a Liquid Plutonium-Iron Eutectic Alloy

Description: The viscosity of a liquid plutonium-iron eutectic alloy, which contains 9.5 atom per cent iron and melts at 411 degrees C, was determined up to 808 degrees C at Mound Laboratory by an oscillating cup viscosimeter. This type of apparatus employed a right-circular cylindrical cup containing the liquid under investigation attached to a torsion fiber. The dampening effect of the liquid upon the normal oscillations of the pendululm was a function of the viscosity of the liquid. The amplitudes of the… more
Date: April 1, 1960
Creator: Wittenberg, L. J., Jones, L. V., Ofte, D.
Partner: UNT Libraries Government Documents Department
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The Plutonium-Copper Phase Diagram

Description: The constitution of the plutonium-copper binary alloy as determined by differential thermal analysis is presented. The system is characterized by two congruent melting compounds, PuCu2 (m.p. 865 degrees C.) and Pu4Cu17 (m.p. 954 degrees C.); two incongruent melting compounds, PuCu4 (m.p. 906 degrees C.) and Pu2Cu11 (m.p. 926 degrees C.); three eutectics, 96 atom per cent copper (m.p. 626 degrees), 70.5 atom per cent copper (m.p. 849 degrees C.), and 91 atom per cent copper (m.p. 881 degrees C.)… more
Date: January 1, 1960
Creator: Rhinehammer, T. B.; Etter, D. E. & Jones, L. V.
Partner: UNT Libraries Government Documents Department
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Grounding of Beta Sources by an Auxiliary Alpha Source

Description: A Po/sup 210/ source was used to furnish a reliab1e ground for both electron and positron sources. This was done to prevent the electron and positron sources from charging during BETA spectral studies in magnetic lens spectrometers. An approximately 20- mu c Po/sup 210/ source was placed 1.2 in. behind a 4- mu c Na/sup 2 / 2>s positron emitter backed by 20- mu g/cm/sup 2/ Formvar in the spectrometer; this arrangement resulted in a charging rate decrease of approximately 80%. When the source was… more
Date: December 1, 1960
Creator: Nichols, R. T. & Jensen, E. N.
Partner: UNT Libraries Government Documents Department
open access

Potential Physical Processes Explaining the Observed Spectral Signature of Cloudy Column Solar Radiation Absorption

Description: The results presented here have shown that the spectral signature of absorption in a cloudy layer could be duplicated (except for the 1.06 {micro}m region) with a rather sophisticated radiative transfer model, if the absorption by both aerosol and cloud droplets was enhanced. In the case of aerosol, highly absorbing (imaginary part of refractive index between 0.1 and 0.01), small (2 - 5 nm) particles dramatically improved the match between observations and model computations. Duplication of the… more
Date: June 1, 1960
Creator: Gautier, Catherine; O'Hirok, William & Ricchiazzi, Paul
Partner: UNT Libraries Government Documents Department
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