Thin layer activation analysis of 16O induced reactions for surface wear studies in some natural isotopes

Abstract

In the present work, the residual activity induced in ¹⁸¹Ta targets bombarded with ¹⁶O beam in the energy range ≈70-100 MeV have been measured. Stacked foil activation has been employed to measure the cross-sections of the several radio-isotopes populated through different nuclear reaction across various energies. Yields of the radio-isotopic products such as ^194,193,192Tl, ^193,192Hg, ^192,191,190Au have been obtained with the help of the characteristic γ-lines. Further, calibration curves are deduced by observing remnant activity induced across different depths in the target material. As a result an attempt has been made to employ thin layer activation technique with increased sensitivity for the study of surface wear.