This paper reports for the first time the study of optically stimulated luminescence (OSL) of amorphous Brazilian bisphenol-A polycarbonate (Durolon) exposed to beta radiation. The OSL was studied from two perspectives: characterizing the luminescent signal as a function of radiation dose and examining repeatability. Computational analyses are applied to OSL curves via the deconvolution method. Fluorescence measurements employing the emission - excitation matrix (EEM) technique and optical absorption (OA) are incorporated to characterize the polymer defects and color centers. OSL measurements were carried out in a commercial reader Risø (model DA-20) coupled with aSr/Y beta source. The sample was illuminated using 470 nm blue LEDs. The OSL response exhibited an exponential decay signal after 1 Gy, with linear dose-response and consistent repeatability. The continuous-wave-OSL curve was well adjusted with two distinct components. As result, Durolon promising potential as a luminescent dosimeter, supported by its desirable OSL signal characteristics.

中文翻译：

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Durolon 聚碳酸酯的光激发光

本文首次报道了无定形巴西双酚 A 聚碳酸酯 (Durolon) 暴露于 β 辐射下的光激发光 (OSL) 研究。从两个角度研究 OSL：将发光信号表征为辐射剂量的函数并检查可重复性。通过反卷积方法对 OSL 曲线进行计算分析。采用发射-激发矩阵 (EEM) 技术和光吸收 (OA) 的荧光测量来表征聚合物缺陷和色心。 OSL 测量在商业读数器 Risø（型号 DA-20）中与 aSr/Y beta 源结合进行。使用 470 nm 蓝色 LED 照明样品。 OSL 响应在 1 Gy 后呈现指数衰减信号，具有线性剂量响应和一致的重复性。连续波 OSL 曲线通过两个不同的组件进行了很好的调整。因此，Durolon 在其理想的 OSL 信号特性的支持下，有望成为发光剂量计。