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  • 1
    Electronic Resource
    Electronic Resource
    Analysis of actinides in the primary coolant of a WWER-440 type reactor (1993)
    Springer
    Journal of radioanalytical and nuclear chemistry 170 (1993), S. 399-409 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A simple and effective method has been developed for the determination of the transuranium isotopes in primary coolant samples of WWER-440 type reactors. Membrane filters containing undissolved particles from about one liter coolant were destroyed by mineral acids, then americium-curium isotopes and neptunium-plutonium isotopes were coprecipitated sequentially with NdF3 based on their different redox behavior. Alpha-spectra were determined by silicon semiconductor detectors connected to multichannel analyzers. Activity ratios measured in a reactor unit with a failed fuel element were compared with calculated values of the same type of reactor under similar conditions. Parameters of the defective fuel (burnup, original enrichment) could be estimated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02041476
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Reactor neutron activation analysis followed by characteristic X-ray spectrometry (1989)
    Springer
    Journal of radioanalytical and nuclear chemistry 131 (1989), S. 457-466 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The possibility of applications of characteristic X-rays from radioactive products of reactor neutron activation was investigated with particular emphasis on (n, γ), n, n′), (n, 2n), (n, p) and (n, α) products with long half-lives. The sensitivity and detection limits of silver, cerium, gadolinium, selenium, cadmium and europium have been investigated. The elements were studied both in a pure and in a matrix form, in both cases the samples were diluted with graphite (≈90%) to minimize matrix effects (absorption and enhancement).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02060611
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Neutron activation analysis for provenance studies of archaeological ceramics (1990)
    Springer
    Journal of radioanalytical and nuclear chemistry 141 (1990), S. 7-16 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Neutron activation analysis was used for provenance studies of ceramics from the early middle ages (avar period). 14 trace elements and Fe were determined by multiisotope comparator method. Computerized mathematical statistical methods (cluster-, and similarity analysis) were used for grouping the samples according to the similarity of their trace element distributions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02060180
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Determination of radioactivity concentrations of fission products in the primary coolant of nuclear power plants (1991)
    Springer
    Journal of radioanalytical and nuclear chemistry 147 (1991), S. 347-353 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A semi-automated instrumental gamma-spectrometric measuring system with a sample changer has been developed for determination of the radioactive fission products coming from different parts of the primary coolant circuit. The measuring geometry assures higher sensitivities under normal operation conditions and lower ones for significant fuel cladding failures. The minimal detection limits are in the range of some ten Bq/l.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02040383
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Reactor neutron activation analysis based on characteristic X-ray spectrometry (1988)
    Springer
    Journal of radioanalytical and nuclear chemistry 128 (1988), S. 225-232 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The possibility of using characteristic X-ray from radioactive products of reactor activation was investigated with particular emphasis on /n,γ/, /n,n/, /n,2n/, /n,p/ and /n,α/ products with long half lives. The characteristic X-rays emitted are a result of electron capture or internal conversion processes during isomeric transition. First of all the sensitivity and detection limits were investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02166653
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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