A radioluminescence (RL) study of dose characteristics of tissue-equivalent LiF:Mg,Ti was carried out to determine the possible application as a real-time dosemeter. An RL measurements system based on LiF:Mg,Ti coupled with optical fiber was developed, and a blank fiber was set to remove the stem effect generated by the optical fiber due to direct radiation. A slight increase of RL sensitivity with accumulated dose and the afterglow effect due to shallow traps in LiF:Mg,Ti were observed, thus a set of algorithms was adopted to correct measured dose rate. A good linearity of dose-rate response using RL in LiF:Mg,Ti over more than four orders of magnitude (from 0.76 mGy/h to 8.02 Gy/h) was shown, and the deviation of calibrated dose rate is within 20%. Moreover, a satisfactory reproducibility (1.45%) of the measured dose rate after correction was represented. The results indicated that LiF:Mg,Ti might be promising for real-time dose monitoring.

中文翻译：

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LIF:MG,TI 剂量特性的辐射发光研究

对组织等效 LiF:Mg,Ti 的剂量特性进行了辐射发光 (RL) 研究，以确定作为实时剂量计的可能应用。研制了基于LiF:Mg,Ti与光纤耦合的RL测量系统，并设置空白光纤以消除光纤因直接辐射而产生的茎效应。观察到 RL 灵敏度随累积剂量略有增加，以及由于 LiF:Mg,Ti 中的浅陷阱导致的余辉效应，因此采用了一组算法来校正测量的剂量率。使用 RL 在 LiF:Mg,Ti 中显示了超过四个数量级（从 0.76 mGy/h 到 8.02 Gy/h）的良好线性剂量率响应，校准剂量率的偏差在 20% 以内。此外，令人满意的重现性 (1. 表示校正后测量的剂量率的 45%）。结果表明，LiF:Mg,Ti 可能有希望用于实时剂量监测。