A particle induced gamma-ray emission method using proton beam in conjunction with in situ current normalization approach
was standardized for non-destructive determination of low Z element lithium and was applied for quantification of Li in lithium
doped neodymium dititanate (Nd2Ti2O7) ceramic sample. Thick pellets of heat treated samples, their precursors and Li standards were prepared separately by homogeneously
mixing with cellulose and fixed amount of F used for in situ current normalization. For validation of the method, four synthetic
samples were also analyzed. Samples and standards were irradiated with 4 MeV proton beam (~5 nA current) from folded tandem
ion accelerator (FOTIA) BARC, Mumbai. Characteristic γ-rays of 478 keV from 7Li to 197 keV from 19F were measured by high resolution γ-ray spectrometry. The Li concentrations determined in the six samples were in the range
of 0.29–0.85 wt%. The Li contents in heat treated samples gave the idea about loss of Li compared to their precursors.