Absorption, emission, excitation and thermoluminescence were investigated for pure, Eu- and Ce-doped LiBaF/sub 3/ crystals, both as grown and irradiated. It is shown that the purity of initial crystal is a prerequisite to reduce the afterglow and decrease the radiation damage level. Doping by Ce or Eu ions is a way to vary the spectral and kinetic characteristic. The exciton luminescence and blue afterglow are suppressed in Eu- or Ce-doped crystals. Radiation induced absorption spectrum is complicated and includes more than six overlapped bands. Emission of these color centers appears in the luminescence spectrum.
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机译：研究了吸收，排放，激发和热致发光，用于纯，欧氏和Ce掺杂的LibaF / Sub 3 /晶体，既可生长和辐照。结果表明，初始晶体的纯度是减少余辉并降低辐射损伤水平的先决条件。 Ce或Eu离子的掺杂是改变光谱和动力学特性的方法。 EUS或CE掺杂晶体中抑制了激子发光和蓝色余辉。辐射诱导吸收光谱复杂并且包括六个以上的重叠带。这些颜色中心的发射出现在发光光谱中。
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