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Cost/risk/benefit analysis report on the decontamination and decommissioning of Z-plant

Description: This study was performed to estimate the cost of decontaminating and decommissioning Z-Plant. All of the buildings in the Z-Plant exclusion area except Building 2736-Z, the plutonium storage vault, are included in the study. The study also excludes all underground facilities within the exclusion area which are not contained within a building and all Z-Plant related facilities outside the perimeter fence. The contamination in Z-Plant is primarily /sup 239/Pu which has a half-life of 24,360 years… more
Date: September 28, 1979
Creator: Melvin, J. P.; Sexton, R. A.; Fort, M. L. & Nunn, S. E.
Partner: UNT Libraries Government Documents Department
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Polyacetylene, (CH)/sub x/, as an emerging material for solar cell applications. Technical progress report, April-June, 1979

Description: The potential of (CH)/sub x/ as a photosensitive material for use in solar cell applications is studied. Schottky barrier photovoltaic cells were fabricated with metallic AsF/sub 5/-doped (CH)/sub x/ on semiconducting n-Si and n-GaAs, with metallic Na-doped (CH)/sub x/ on semiconducting p-Si, with K-doped (CH)/sub x/ as an n-type semiconductor in contact with an electronegative metal (Au), and with undoped trans-(CH)/sub x/ as a p-type semiconductor in contact with electropositive metals (Na, H… more
Date: July 28, 1979
Creator: Heeger, A.J. & MacDiarmid, A.G.
Partner: UNT Libraries Government Documents Department
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Corrosion, Stress Corrosion Cracking, and Electrochemistry of the Iron and Nickel Base Alloys in Caustic Environments. Progress Report, March 1, 1978--February 28, 1979

Description: Stress corrosion cracking susceptibility of 2-1/4Cr--1Mo steel has been studied in the pH range 0.5 to 13 in one molar sulfate solutions containing Na/sub 2/S additions, by the slow strain rate (10/sup -6/S/sup -1/) technique. Brittle fracture was observed over the entire pH range but only at cathodic potentials which were below the hydrogen evolution region. Crack propagation rates (CPRs) in Nickel-200 have been measured as a function of potential in 17.5N NaOH solution at 138/sup 0/C, using t… more
Date: February 28, 1979
Creator: Staehle, R. W. & Agrawal, A. K.
Partner: UNT Libraries Government Documents Department
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