Radiation induced recharging of Ce3+ and Ce4+ ions in Ce and Nd doped yttrium-aluminium garnet crystals was observed. This result is determined by the Ce3+ ion concentration and the type of ionizing radiation.Improved 2.86 µm emission akin to Ho³?? ?I6??I7 was reached in Nd³??Ho³??codoped CaLaGa3O7 crystal for The very first time. The in depth