In situ luminescence measurement of irradiation defects in ternary lithium ceramics under ion beam irradiation

For the performance assessment of fusion reactor solid breeder materials, the production behavior of irradiation defects in some candidate materials of Li2TiO3, Li2ZrO3 and Li2SnO3 was studied by an in situ luminescence measurement technique under ion beam irradiation. The luminescence was observed to be composed of multiple luminescence bands and the temperature dependence of the luminescence intensity was measured under He+ or H+ ion beam irradiation. The production mechanism of irradiation defects was discussed by comparing the present results with those previously obtained for Li2O. The effects of irradiation defects on tritium recovery kinetics and material stability were pointed out. (C) 1997 Elsevier Science B.V.