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Development of krypton-85 sources for the Bureau of Mines coal dust combustion analyzer. Operations Division final report. [Gaseous /sup 85/Kr encapsulated in Ta; x-ray source]

Description: Americium-241 used as a radiation source in a field instrument for measuring coal concentrations in mine dust presents a contamination hazard if the instrument is damaged. Alternative source designs based on /sup 85/Kr were developed and evaluated. Krypton-85 beta particles were used to excite x-rays from a target and the x-rays were used in place of the /sup 241/Am gamma radiation. Output of sources using /sup 85/Kr foils was not high enough because the concentration of /sup 85/Kr in the foils… more
Date: June 1, 1976
Creator: Bradley, N. C.; Case, F. N.; Cutshall, N. H. & Haff, K. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pacific Northwest Laboratory annual report for 1992 to the DOE Office of Energy Research

Description: This report is divided into the following sections, with technical sections in parentheses: dosimetry research (Chernobyl database, radon alpha irradiation of mammalian cells, cell growth rates in individual colonies), measurement science (ultrahigh resolution studies of molecular structure and dynamics, circular dichroism in hyperfine state resolved photoelectron angular distributions, Sr isotope shifts, capillary electrophoresis-mass spectrometry for DNA adduct research, rapid DNA sequencing … more
Date: April 1, 1993
Creator: Toburen, L. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Science of materials progress report, July 1, 1975--June 30, 1976

Description: Research in Metallurgy and Ceramics included the investigation of the mechanical properties, stress corrosion cracking, and fracture of metals, alloys, and transition metal compounds; the investigation of the dynamic structure of water and electrolyte solutions at high temperature and pressure; and the investigation of the properties of oxides and of the magnetic properties of alloys. Solid state Physics research was focussed on the electronic properties of solids and on defects in crystal stru… more
Date: April 1, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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