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  • 1
    Electronic Resource
    Electronic Resource
    Determination of the leachability index of137Cs from cement solidified radioactive wastes (1990)
    Springer
    Journal of radioanalytical and nuclear chemistry 140 (1990), S. 255-262 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The radioactive boric acid wastes generated from the nuclear power plants have been solidified with cement. One of the properties required for solidified radioactive wastes is resistance to leaching. The leachability of137Cs from solidified waste specimens prepared by various formulation has been studied according to the proposed ANS 16.1 Standard Leach Test. For the evaluation of radiological safety in the solidified radioactive waste disposal, the leachability indices have been determined from the leaching test data. The results have turned out to be 5.97–7.60, depending on formulation and solidifying matrix.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02039497
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of neutralizing agent content on137Cs leaching from solidified boric acid waste products (1991)
    Springer
    Journal of radioanalytical and nuclear chemistry 148 (1991), S. 43-51 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract For the preservation of environment from radioactive contamination, one of the properties necessary for solidified radioactive wastes is resistance to the release of radionuclides due to leaching by ground water after land disposal. In order to seek the optimum solidifying formulation for cement solidified boric acid concentrate from pressurized water reactor, a variety of specimens were prepared, varying the content of neutralizing agents and neutralization methods. For the leaching measurements, the ANS 16.1 Standard Leach Test was carried out for the specimens which had been mixed with small concentration of137Cs to estimate the leachability index. According to our investigation, the optimum contents of neutralizing agents for neutralization of boric acid radioactive waste were determined in view of resistance ability to leaching. Eventually the leachability indices have turned out to be 5.80∼7.91 depending on the formulations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02060545
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Ion beam induced emissions from solid europium compounds (1992)
    Springer
    Journal of radioanalytical and nuclear chemistry 160 (1992), S. 203-209 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Impact of energetic heavy particles on europium compound surfaces gives rise to radiative optical emission from reflected and sputtered particles and from the excited states of the solid compounds. In the present paper we discuss the optical spectrum and the sputtered secondary ion mass spectrum observed when solid europium oxide (Eu2O3) and europium chloride (EuCl3) are bombarded with 90 keV Ar+ ions from an ion accelerator. We observe the reduction reaction in solid europium chloride (EuCl3) by bombardment with a 20 μA/cm2 beam of 90 keV Ar+ ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02041670
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Collisional processes in muon catalyzed fusion as studied by the classical collision theory (1994)
    Springer
    Journal of radioanalytical and nuclear chemistry 178 (1994), S. 121-130 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Collisional processes involving a negative muon in the deuterium and tritium system were studied using the classical binary encounter theory. The time needed for slowing down of a 10 keV muon was found to be of the order of 10−8s to 10−12s, depending on the density of the system. The “Sticking Probabilities” for the d-t and d-d fusions were obtained to be 0.48% and 10.2%, respectively. The usefulness of the classical model for understanding fundamental processes in muon catalyzed fusion is suggested.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02068663
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  • 5
    Electronic Resource
    Electronic Resource
    Impurity correction factor of MnSO4 compound for the determination of neutron emission rate on the manganese bath method (1999)
    Springer
    Journal of radioanalytical and nuclear chemistry 239 (1999), S. 605-608 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The manganese sulphate bath method is widely used for measurements of neutron source strength. In this study, the analytical chemistry method based on the Inductively Coupled Plasma (ICP) spectrometry was used for examining the impurity contents of MnSO4·H2O, to induce55Mn(n,γ)56Mn reactions. From the analytical results, mainly K, Co, and Zn as well as trace amounts of Cd, Li, etc., have turned out to be the relevant impurities absorbing the neutrons and the fraction of neutron absorbed by the total impurities was determined to be 1.37%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02349078
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    Paper (German National Licenses)
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