The thermoluminescence (TL) and infrared stimulated luminescence (IRSL) responses of in-house produced CaF₂:Tm dosimeters are investigated in this work, envisaging their application in electron beam (EB) radiation processing. The irradiations were performed at an industrial EB accelerator (1.5 MeV) covering a dose rate range of 2–8 kGy/s and dose up to 10 kGy. In general, the TL glow curves display four peaks, termed as peaks 2, 3, 4, and 5, corresponding to temperatures at ∼150, 200, 240, and 300 °C, respectively. The intensity of the low-temperature peaks (2 and 3) grows with the dose, while the others remain constant (saturated). Nevertheless, an evident dose effect on the glow curves manifests in decreased peak3/peak2 ratio with increasing doses.

The CW-IRSL curves exhibit similar patterns with an initial signal increase, followed by an exponential decay. Instead of the normal monotonic decays, these peak-shaped curves might be due to the charge capture competition between empty shallow traps and recombination centers. Both TL and IRSL intensities increase linearly with doses up to 6 kGy, and for higher doses, they become sub-linear with a saturation trend around 10 kGy. Another common feature of TL/IRSL response is its dose rate dependence, being more sensitive at higher dose rates. Despite being dose-rate dependent, the CaF₂:Tm dosimeters might be suitable for EB processing dosimetry. However, for their use as routine dosimeters, relevant dosimetric characteristics, such as fading and response reproducibility, have to be investigated. Work in this direction is underway.

在这项工作中，研究了内部生产的CaF ₂：Tm剂量计的热发光（TL）和红外激发发光（IRSL）响应，并设想它们在电子束（EB）辐射处理中的应用。辐射是在工业EB加速器（1.5 MeV）上进行的，剂量率范围为2-8 kGy / s，最高剂量为10 kGy。通常，TL辉光曲线显示四个峰，分别称为峰2、3、4和5，分别对应于约150、200、240和300°C的温度。低温峰（2和3）的强度随剂量而增长，而其他峰保持恒定（饱和）。然而，对辉光曲线的明显剂量效应表现为随着剂量增加，降低的peak3 / peak2比值。

CW-IRSL曲线表现出相似的模式，但初始信号增加，然后呈指数衰减。这些峰形曲线可能不是空的浅陷阱和重组中心之间的电荷捕获竞争，而是正常的单调衰减。TL和IRSL强度均随剂量增加至6 kGy线性增加，而对于较高剂量，它们变为亚线性，饱和趋势约为10 kGy。TL / IRSL反应的另一个共同特征是其剂量率依赖性，在较高剂量率下更敏感。尽管受剂量率的影响，CaF ₂：Tm剂量计可能适用于EB处理剂量法。但是，为了用作常规剂量计，必须研究相关的剂量特性，例如褪色和响应重现性。这个方向的工作正在进行中。