Abstract Mineral fillers are widely used in the manufacture of thermoplastics and they are commonly found in the fabrics used to form bags. We show that carbonate mineral filler grains incorporated within faux leather fabrics and the coatings applied to woven nylon fibre fabrics exhibit a bright thermoluminescence TL response to ionising radiation dose, similar to that of calcite, with a broad thermoluminescence (TL) peak at 100 °C. The fabrics tested are shown to be potentially suitable as a surrogate material for emergency dosimetry, exhibiting a linear TL response to dose between 0.1 and 10 Gy, and with a detection limit varying with fabric type from 4 to 400 mGy. The region of the TL glow curve selected for dose evaluation was between ca 100–200 °C, and this is restricted by the presence of a native signal associated with the 250 °C TL peak. The rate of fading observed varied with glow curve temperature, attributed to the presence of a distribution of trapping levels; following 24 h storage at room temperature the loss recorded for the optimal glow curve temperature region selected (160–162 °C) ranged from 30 to 80 %, according to fabric and filler type. However, the fading mechanism is predominantly thermal and its rate can be substantially reduced by storing irradiated materials below room temperature. The use of filler minerals incorporated in the manufacture of plastics provides the scope to exploit a much wider range of materials for application to emergency dosimetry.

中文翻译：

---

放射应急剂量测定 - 在聚合物织物中使用发光矿物填料

摘要 矿物填料广泛用于制造热塑性塑料，它们通常存在于用于形成袋子的织物中。我们表明，人造皮革织物中的碳酸盐矿物填料颗粒和应用于编织尼龙纤维织物的涂层表现出对电离辐射剂量的明亮热释光 TL 响应，类似于方解石，在 100°C 处具有宽的热释光 (TL) 峰. 测试的织物显示可能适合作为紧急剂量测定的替代材料，对 0.1 到 10 Gy 的剂量表现出线性 TL 响应，并且检测限随织物类型而变化，从 4 到 400 mGy。选择用于剂量评估的 TL 辉光曲线区域在大约 100-200 °C 之间，这受到与 250 °C TL 峰相关的天然信号的存在的限制。观察到的褪色率随辉光曲线温度而变化，归因于诱捕水平分布的存在；在室温下储存 24 小时后，根据织物和填料类型，选择的最佳发光曲线温度区域（160-162°C）记录的损失范围为 30% 至 80%。然而，褪色机制主要是热的，通过将辐射材料储存在室温以下，可以显着降低其衰减速度。在塑料制造中使用填充矿物提供了开发更广泛的材料以应用于紧急剂量测定的范围。在室温下储存 24 小时后，根据织物和填料类型，选择的最佳发光曲线温度区域（160-162°C）记录的损失范围为 30% 至 80%。然而，褪色机制主要是热的，通过将辐射材料储存在室温以下，可以显着降低其衰减速度。在塑料制造中使用填充矿物提供了开发更广泛的材料以应用于紧急剂量测定的范围。在室温下储存 24 小时后，根据织物和填料类型，选择的最佳发光曲线温度区域（160-162°C）记录的损失范围为 30% 至 80%。然而，褪色机制主要是热的，通过将辐射材料储存在室温以下，可以显着降低其衰减速度。在塑料制造中使用填充矿物提供了开发更广泛的材料以应用于紧急剂量测定的范围。