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  • Articles: DFG German National Licenses  (2)
  • 1985-1989  (2)
  • 1988  (2)
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  • Articles: DFG German National Licenses  (2)
Material
Years
  • 1985-1989  (2)
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Isotope separation of32SF6 and12CF3I by a Q-switched CO2 laser (1988)
    Springer
    Applied physics 47 (1988), S. 17-20 
    Details
    ISSN: 1432-0649
    Keywords: 33.80 Wz
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Pulses with energy of 0.5 to 15 mJ and a repetition rate of 20 kHz from a Q-switched CO2 laser with continuous discharge were employed to dissociate32SF6 and12CF3I at 0.25 mbar. Gas exchange by diffusion is rapid enough to maintain isotopic selectivity. Dissociation yields agree with those measured at slightly raised temperature by a TEA laser. Because photons are cheaper from Q-switched lasers than from TEA lasers, economic consequences can result for isotope separation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00696203
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Determination of silicon in high purity metals by radiochemical NAA and CPAA (1988)
    Springer
    Journal of radioanalytical and nuclear chemistry 123 (1988), S. 561-571 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The indicator radionuclide31Si produced in neutron and deuteron activation analysis for silicon via the reactions30Si(n,γ) and30Si(d,p), respectively, is specifically separated from the irradiated sample by distillation as31SiF4. In the case of aluminium, the distillation is carried out from a HF(HNO3)H2O2 medium and in the case of molybdenum, niobium, tantalum, titanium and vanadium from a HF/HNO3/HBr/H2SO4 medium. Using liquid scintillation counting, the achievable detection limits for neutron activation analysis are, depending on the type of the matrix, between 4–50 ng/g, and for the deuteron activation analysis of tantalum the detection limit is 5 ng/g.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02034916
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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