The current study presents rhyolite as a novel and promising natural thermoluminescence emission (TL) material. The work focused on enhancing the TL sensitivity of rhyolite via optimization of the processing conditions: annealing and pre‐dose effect. The glow curves of irradiated rhyolite sample showed a single peak of about 110°C at 5°C sec^–1 heating rate. Sensitization was performed following Fleming’s sensitization technique. It was found that applying 1 kGy pre‐dose irradiation, followed by thermal activation at 550°C for 1 h, and cooling in air at room temperature were the optimum conditions for TL sensitivity improvement of this 110°C glow peak. Both nonsensitized and sensitized rhyolite have linear behaviour in the range 5–1500 Gy. The obtained results present rhyolite as a material for potential dosimetry applications.

中文翻译：

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使用高伽马剂量进行热致发光剂量测定法对天然流纹岩岩石进行敏化。

当前的研究提出流纹岩是一种新颖且有希望的天然热致发光发射（TL）材料。这项工作的重点是通过优化加工条件（退火和剂量前效应）来提高流纹岩的TL敏感性。辐照流纹岩样品的辉光曲线在5°C sec ^–1处显示约110°C的单个峰加热速率。敏化是根据弗莱明的敏化技术进行的。研究发现，在剂量前施加1 kGy辐射，然后在550°C下热活化1小时，然后在室温下在空气中冷却，是提高110°C发光峰的TL灵敏度的最佳条件。非敏化流纹岩和敏化流纹岩都具有5-1500 Gy范围内的线性行为。获得的结果表明流纹岩作为潜在剂量学应用的材料。