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首页> 外文期刊>Radiation Protection Dosimetry >OPTICAL ABSORPTION AND THERMOLUMINESCENCE STUDIES IN IRRADIATED DOSIMETRIC LiF:Mg,Ti (TLD-100)
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OPTICAL ABSORPTION AND THERMOLUMINESCENCE STUDIES IN IRRADIATED DOSIMETRIC LiF:Mg,Ti (TLD-100)

机译：辐照剂量的LiF：Mg，Ti（TLD-100）的光学吸收和热释光研究

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摘要

The optical absorption (OA) and thermoluminescence (TL) of irradiated LiF:Mg, Ti was studied as a function of the temperature of post-irradiation annealing. The dose response of the OA bands and sensitisation effect were also investigated. The filling and emptying rate `anti-correlation' and the behaviour with dose of the 5.6 eV and 3.25 eV and 4.0 eV bands lead us to propose that the 5.6 eV band trapping structure actively competes with the 3.25 eV and 4.0 eV bands (or TL peaks 2 and 5) trapping structures in both the excitation and recombination stages and may be the `deep' competitor responsible for the supralinearity of these peaks. Preferential population of the 2.78 eV band at high ionisation density suggests that this band may arise from a `two-hit' charge carrier trapping structure. The similarity between the thermal bleaching behaviour of the F band and the 2.78 eV band leads to the suggestion that the 2.78 eV band arises from an F_2 centre.
机译：研究了被辐照的LiF：Mg，Ti的光吸收（OA）和热致发光（TL）与辐照后退火温度的关系。还研究了OA带的剂量响应和敏化作用。填充和排空速率的“反相关性”以及5.6 eV和3.25 eV和4.0 eV谱带剂量的行为使我们提出5.6 eV谱带俘获结构可与3.25 eV和4.0 eV谱带（或TL）竞争峰2和5）在激发和重组阶段都捕获了结构，可能是导致这些峰超线性的“深”竞争者。高电离密度下2.78 eV能带的优先群体表明，该能带可能来自“两次命中”电荷载流子捕获结构。 F波段和2.78 eV波段的热漂白行为之间的相似性导致提出这样一个建议，即2.78 eV波段来自F_2中心。

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