Scintillation mechanisms and performance parameters of quaternary (Gd,Y)₃Al₂Ga₃O₁₂ compositionally disordered polycrystalline garnet type ceramics doped with Ce or Tb have been investigated for the first time. Similar light yield dependence on a Gd content in the composition was evidenced for both dopants. The highest light yield achieved in Tb doped samples was found to be four times higher than in Ce doped samples, which was achieved by tuning of the resonance conditions for energy transfer from Gd subsystem to Tb³⁺ activators due to the variation of Gd content in the matrix. The exceptional role of the Gd³⁺ subsystem is forming the high light yield of Tb doped quaternary garnets under different kinds of ionizing radiation is pointed out.

首次研究了掺杂Ce或Tb的季（Gd，Y）₃ Al ₂ Ga ₃ O ₁₂组成无序多晶石榴石型陶瓷的闪烁机理和性能参数。对于两种掺杂剂，证明了组合物中类似的光产率对Gd含量的依赖性。发现通过掺入Tb的样品获得的最高光产率比掺Ce的样品高四倍，这是通过调节共振条件来实现的，该条件是由于Gd含量的变化，从Gd子系统到Tb ³⁺活化剂的能量转移。矩阵。Gd ³⁺的特殊作用 指出了在不同类型的电离辐射下，Tb掺杂的四级石榴石形成的高光产率。