Ion beam analyses for Li2TiO3 blanket candidate material

Combined NRBS (non-Rutherford backscattering spectroscopy) and NRA (nuclear reaction analysis) methods have been applied to Li2CO3 samples with Li of various isotopic compositions. Densities of the component elements as well as the isotopic composition of Li have been determined within an error of about 10% or less. The NRBS method has also been applied to a high-density Li2TiO3 sample to investigate double-shell formation under CO2 absorption. By showing appearance of a Ti-free layer on the sample surface, usefulness of the method for investigation of the mechanism of the double-shell formation is demonstrated.