An electron - nuclear double-resonance study of the F centre in CsBr

Abstract

Electron - nuclear double-resonance (ENDOR) measurements were performed on the F centre in CsBr using the stationary ENDOR method. Five Cs and three Br shells could be resolved. The observed superhyperfine interactions cannot be explained by a spherically symmetric F-centre wavefunction. Lattice-ion overlaps and an admixture of -type functions (L = 4) have to be included in the description of the F-centre wavefunction.

Development of LiMgBO3:Tb3+ as a new generation material for thermoluminescence based personnel neutron dosimetry

“…In the present case, that the existence of the electrons trapped at an anion vacancy [O v ] À could not be detected may be because of the very low concentration or large line width of the resonance signal. 71,72 Based on the generation of the above trap centers, a possible mechanism for the generation of TL in View Article Online which recombine with the electrons emitted from the electron trap centre, resulting in the emission of radiative photons from the luminescence centres. The energy released here excites the energy levels of the adjacent Tb 3+ ions present in the material.…”