Multiple shaped-crystal growth of oxide scintillators using Mo crucible and die by the edge defined film fed growth method

•Feasibility of the growth of LYSO, YSO, LuAG, YAG and GAGG by EFG was studied.•Aluminate such LuAG and YAG had the least reactivity with Mo metal.•Ce:LuAG with 320 mm length were grown by 4 multiple EFG using Mo crucible and die.•Light yield value was high and nearly constant within 25,000–27,200 photon/MeV. Edge defined Film Fed Growth (EFG) method with molybdenum (Mo) crucible and die was studied for the growth of several oxide-based single crystals. At first, reactivity between the molybdenum (Mo) metal and oxide melts of Ce:(Lu,Y)2SiO5 (LYSO) Ce:Y2SiO5 (YSO), Ce:Gd3(Al,Ga)5O12 (GAGG), Ce:Lu3Al5O12 (LuAG), Ce:Y3Al5O12 (YAG) was investigated. The experimental and calculation results on the reactivity with Mo show that the aluminum garnets (LuAG, YAG) had the smallest reactivity with Mo metal. On the contrary, GAGG showed the strongest reaction with Mo. Then, the multiple-die grown shaped single crystal growth of Ce:LuAG was demonstrated by EFG method. Single crystal plates up to 320 mm in length were grown successfully. The homogeneity of dopant distribution, Mo contamination, luminescence and scintillation responses of the grown crystals were evaluated.