Abstract
The cadmium ratios of 52 short-lived nuclides have been measured. Epithermal neutron irradiation reduces the activities of20F,27Mg,28Al,38Cl,49Ca,46mSc,51Ti,56Mn and66Cu by factors of 20–30. The calculated improvements in detection limits for Ga, Br, Rb, Y, Mo, Rh, Pd, Ag, In, Sn, Sb, I, Ba, Nd, Sm, Gd, Dy, Er, Yb, Hf, W, Re, Pt, Au, Th and U are in the range 1–6. Hafnium was measured in USGS rocks: AGV-1 (4.9 μg g−1), G-2 (7.5 μg g−1) and GSP-1 (14.7 μg g−1) and IAEA standards: SOIL-5 (6.3 μg g−1 and SL-1 (4.6 μg g−1). CCRMP reference concentrates PTC and PTM were analysed for rhodium (1.1 and 0.75 μg g−1, respectively) and silver (69 and 5.8 μg g−1, respectively).
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Parry, S.J. Epithermal neutron activation analysis of short-lived nuclides in geological material. J. Radioanal. Chem. 72, 195–207 (1982). https://doi.org/10.1007/BF02516784
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DOI: https://doi.org/10.1007/BF02516784