Comparison of the role of photon and neutron activation analyses for elemental characterization of geological,biological and environmental materials |
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Authors: | Z ?anda J Ku?era J Mizera J Frána |
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Institution: | (1) Nuclear Physics Institute, Academy of Sciences of the Czech Republic, 250 68 Řež near Prague, Czech Republic;(2) Center of Research, Ltd., 250 68 Řež near Prague, Czech Republic |
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Abstract: | The potential of photon activation analysis (PAA) for multielement trace analysis can hardly compare with that of neutron
activation analysis (NAA). However, PAA appears superior over NAA for the determination of a number of elements, namely C,
N, O, F, Mg, Si, Ca, Ti, Ni, Sr, Y, Zr, Nb, Sn, Tl and Pb in geological, environmental and biological materials. Most of these
and other elements can be determined using nondestructive, instrumental PAA (IPAA), especially in geological materials. The
possibilities of IPAA for multielement analysis using photoexitation and other photonuclear reactions are reviewed and compared
with those of instrumental NAA (INAA), namely for geological materials. The need for and usefulness of radiochemical PAA (RPAA)
procedures are also discussed. |
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Keywords: | |
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