The Influence of Lanthanum on Slow Component in the Scintillation Light of BaF2

The electronic structures of pure BaF₂ crystal and lanthanum doped BaF₂ crystal were calculated in a self-consistent molecular-cluster model. The cluster was embedded in the crystal lattice and the entire system was treated iteratively in the Hartree-Fock-Slater local-density theory. As lanthanum doped BaF₂ is concerned, the obtained results revealed that the F^-_i which is introduced by the lanthanum may contribute to the suppression of the slow component in the scintillation light of BaF₂ crystal.

The project supported by National Natural Science Foundation of China