摘要
In ITER test blanket module design, the elucidation of tritium recovery from solid tritium breeding material is one of critical issues and Li2TiO3 is a candidate of tritium breeding materials. In the present study, in order to understand tritium behavior in solid breeding material Li2TiO3, the X-ray photoelectron spectroscopy (XPS) and thermal desorption spectroscopy (TDS) experiments are carried out to elucidate the trapping behavior using 3 keV D2^+ implanted sample. The Ti-2p XPS spectrum shows that a shoulder appeared at the lower energy side as increasing ion fluence, and it was suggested that Ti^3+ was formed by the reduction of Ti^4+.