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  • 1995-1999  (7)
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Year
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  • 1
    Electronic Resource
    Electronic Resource
    Radon variations in a Hungarian village (1997)
    Springer
    Environmental geology 31 (1997), S. 123-127 
    Details
    ISSN: 1432-0495
    Keywords: Key words Geochemistry ; Porosity ; Radioactivity ; Radon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract  A steady radon exhalation is assumed in most publications. In a village of North-East Hungary, however, high radon concentrations have been measured, differing strongly in neighbouring houses and varying in time, due to the interplay of geochemical phenomena.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002540050171
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Combined procedure for the determination of90Sr,241Am and Pu radionuclides in soil samples (1997)
    Springer
    Journal of radioanalytical and nuclear chemistry 226 (1997), S. 279-284 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A combined procedure for sequential determination of low level activity concentrations of90Sr,241Am and Pu radionuclides is described. The analysis of α-emitters is performed by isotope dilution α-spectrometry using242Pu or236Pu and243Am tracers. Strontium-90 is analyzed by liquid scintillation counting using the double energetic windows method. The method combines the well established, procedure for Pu analysis based on anion exchange, the powerful and selective method for Sr isolation based on extraction chromatography using Sr-Spec resin and finally it includes the application of the TRU-Spec column for separation and purification of the Am fraction. The radiochemical procedure was tested using IAEA reference and intercomparison materials. Major parameters of the procedure as well as advantages and drawbacks are discussed in detail.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02063661
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Peculiar radon spot in Hungary (1996)
    Springer
    Journal of radioanalytical and nuclear chemistry 213 (1996), S. 317-330 
    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 public, indoor radon is the main source of exposure from ionizing radiation. Radon gas originates from the radioactive decay chain of uranium deposited in rocks or in building materials. In the reviews mostly a rather steady radon exhalation has been assumed. In a village of North-East Hungary, however, high radon concentrations have been measured, differing strongly in neighbouring houses and varying in time, due to the interplay of several geochemical phenomena.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02162931
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Chernobyl90Sr in bilberries from Poland (1997)
    Springer
    Journal of radioanalytical and nuclear chemistry 222 (1997), S. 183-187 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract As part of a detailed survey on the contamination of Polish forests90Sr activity concentrations were determined in bilberries. Elevated90Sr levels were found in several samples from north-eastern Poland. The calculated maximum90Sr surface contamination was 2 kBq·m−2. The correlation between90Sr and137Cs concentrations in bilberries was good for two sets of samples originating from two geographical areas of Poland indicating the local differences in radionuclide depositions from Chemobyl fallout.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02034267
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  • 5
    Electronic Resource
    Electronic Resource
    Analysis of selected fertilizers imported to Libya for major, minor, trace and toxic elements using ICP-OES and INAA (1999)
    Springer
    Journal of radioanalytical and nuclear chemistry 242 (1999), S. 693-701 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The concentration of 35 elements (Al, As, B, Ba, Be, Ca, Cd, Co, Cl, Cr, Cu, Fe, K, Mg, Mn, Mo, N, Na, Ni, P, Pb, Rb, S, Sb, Sc, Si, Sr, Tb, Th, Ti, U, V, Yb, Zn and Zr) in six different imported, NPK, NP and K fertilizers were determined by ICP-OES in two different laboratories and by INAA. The fertilizers were labeled as 24/12 (Belgium), 46/18 (Morocco), 50% ammonium sulfate 50% K2O (Belgium), New 24/12 (Belgium), 16.8.24 (France) and 17.17.17 (France). It is clear that these fertilizers vary widely in their heavy metals and uranium content, and the accumulation of certain elements in vitally important media such as water, soil and food is undesirable from the medical point of view. The results obtained were acceptable and intercomparison between various methods was carried out.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02347381
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  • 6
    Electronic Resource
    Electronic Resource
    Determination of some trace elements in natural and fertilised Libyan soils using INAA and ED-XRF (1999)
    Springer
    Journal of radioanalytical and nuclear chemistry 241 (1999), S. 605-610 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Samples of natural and fertilised soils were collected from Al-Gheran region, west of Tripoli, Libya. The samples were investigated by means of INAA and ED-XRF for Al, Si, K, Ca, Sc, Cr, Mn, Fe, Co, Zn, Br, Rb, Sr, Y, Zr, Nb, Cs, Ba, Hf, Ta, Pb and Th. The results indicate that the concentrations of K, Ca, Zn, Sr and Pb are 2–4 fold higher in fertilised compared to natural soil, while the concentrations of Al, Si, Cr, Mn, Fe, Co, Rb, Y, Nb, Cs, Ba Ta and Th are nearly the same in all samples. Mn and Fe values in two arable soils have been found to be 4–6 times lower than the average concentration in the earth's surface soils. This study concludes that, although the levels of some trace elements important for human health are very low in both natural and fertilised soils. Further research is needed to understand the full significance of the distribution transfer and toxicity of trace elements introduced in imported fertilisers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02347220
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Inventory determination of low and intermediate level radioactive waste of Paks Nuclear Power Plant origin (1996)
    Springer
    Journal of radioanalytical and nuclear chemistry 211 (1996), S. 443-451 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract In the execution of disposal of low and intermediate level radioactive wastes, it is important to evaluate accurately the kind and quantity of each radionuclide in the wastes. For such an evaluation, correlation of non-gamma-emitting nuclides based on gamma-emitting nuclides is recommended and regarded as a practical method. This method necessitates a completion of a highly accurate and reliable nondestructive assay system of gamma-emitting nuclides for practical use. In 1992, in support of the new waste disposal program in Hungary, Paks NPP initiated a waste characterization program to determine the radiological properties of its radwastes. A segmented gamma scanning system has been set up to measure the gamma-emitting nuclides in 200 litre low level drums following in-drum compaction. In the framework of the program a radiochemical analysis sub-program was started to determine the long-lived non-gamma emitting radionuclides, mainly those listed in the US regulatory document (10CFR61). The radionuclides of interest have been3H,14C,90Sr,55Fe,59Ni,99Tc,129I and TRUs. Sample preparation techniques and measurement methods have been selected and used. Newly developed or adopted methods have been tested on real liquid radwaste streams such as concentrates, ion-exchange resin and sludge. The measurements taken so far have revealed brand new information and data on radiological composition of waste of WWER-type reactors. In the next stage of the characterisation program attempt will be made for providing correlation factors between the gamma and non-gamma-emitting radionuclides in different waste streams. Short description of the methods and results on waste inventory are given by highlighting the problem areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02039710
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    Paper (German National Licenses)
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