Abstract LiF:Mg,Cu,P thermoluminescent glow-curve, which shape up to a dose of 1 Gy is remarkably invariable, at higher doses undergoes very strong changes. The most important of them is an occurrence of a new high-temperature peak B, which shows a peculiar property: its position shifts towards higher temperatures with increasing doses. In this work, the possibility of exploiting this shift of peak position for ultra-high-dose dosimetry is studied. The performed investigations, after irradiations with 6 MeV electron doses ranging up to 1.2 MGy confirmed that this property may be indeed successfully used for dosimetry. For doses exceeding about 40 kGy, i.e. for glow-curves for which peak B is well visible, the method based on the simple evaluation of the position of the global maximum of a glow-curve produced very good results. The use of peak position as a measure of the dose makes the proposed method extraordinary resistant to applications at high-temperature conditions. It was found, that it is possible to perform correct measurement of the absorbed dose with detectors subjected before the readout to a pre-heat even up to 350 °C.

中文翻译：

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LiF:Mg,Cu,P TL 峰的位置作为超高剂量剂量测定的替代方法

摘要 LiF:Mg,Cu,P 热释光辉光曲线，在高达 1 Gy 的剂量下是非常稳定的，在更高的剂量下会发生非常强烈的变化。其中最重要的是出现了一个新的高温峰 B，它显示了一个特殊的特性：随着剂量的增加，它的位置向更高的温度移动。在这项工作中，研究了利用这种峰值位置偏移进行超高剂量剂量测定的可能性。在用 6 MeV 电子剂量照射范围高达 1.2 MGy 后进行的研究证实，这种特性确实可以成功地用于剂量测定。对于超过约 40 kGy 的剂量，即对于峰 B 清晰可见的辉光曲线，基于辉光曲线全局最大值位置的简单评估的方法产生了非常好的结果。使用峰值位置作为剂量的量度，使得所提出的方法对高温条件下的应用具有非凡的抵抗力。结果表明，即使在高达 350 °C 的温度下，也可以在读取之前对探测器进行正确的吸收剂量测量。