Study on shaped single crystal growth and scintillating properties of Bi-doped rare-earth garnets

Shaped single crystals of Bi:Gd3Ga5O12 (Bi = 0.102, 0.126 and 0.141 mol.%) and Bi:Y3Ga5O12 (Bi = 0.041,0.047 and 0.061 mol.%) were grown by the micro-pulling-down method. Measured optical absorptionspectra show an absorption band round 290 nm ascribed to the lowest energy 6s2→6s6p transition of Bi3+.Difference in the positi..