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  • 1970-1974  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Directional correlation studies in the decay of177gLu (1970)
    Springer
    The European physical journal 239 (1970), S. 25-29 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Directional gamma-gamma correlations of the strong 208.4–112.9 keV and of the weak 71.6–249.7 keV cascade transitions in the decay of177gLu have been measured. The correlation coefficientsA 22=−0.208±0.012 of the strong andA 22=−0.105±0.005 of the weak cascade have been determined. The mixing ratioE2/M1 of −3.7±0.3 for the 112.9 keV transition and theM2/E1 of −0.0173±0.0065 for the 71.6 keV transition have been obtained. The deducedM2 admixture in the 71.6 keV transition is in good agreement with the theoretical estimates of Weisskopf and of Nilsson.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01408509
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Studies on precipitation and co-precipitation of tantalum and niobium from potassium fluoride solutions (1971)
    Springer
    Microchimica acta 59 (1971), S. 116-120 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die Fällung und Mitfällung von Tantal und Niob aus Kaliumfluorid-lösungen wurde unter verschiedenen Versuchsbedingungen untersucht. Veränderungen der Flußsäurekonzentration beeinflussen die Fällungsausbeute an K2TaF7 zwar nicht, im Gegensatz dazu aber wird diese Ausbeute durch Veränderungen der Kaliumfluoridkonzentration beeinflußt. Die Niob-Mitfällung erfolgt hauptsächlich auf Grund der Adsorption an der Oberfläche der festen Phase. Die chemische Zusammensetzung des Kaliumtantalfluorids wurde durch Neutronenaktivierungsanalyse überprüft.
    Notes: Summary Precipitation and co-precipitation of tantalum and niobium from KF solution were investigated under various experimental conditions. Results obtained indicate that variations of HF concentration do not influence the K2TaF7 precipitation yield, but variations in KF concentration do. Niobium co-precipitation is mainly due to adsorption onto the surface of the solid phase. Chemical composition of the potassium tantalum fluoride was checked by neutron-activation analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01216891
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    Paper (German National Licenses)
    Fulltext
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