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 radioisotopes 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.