Abstract We investigate the physical and dosimetric characteristics of Ag-activated phosphate glass exposed to proton beams with various energies. We present time-resolved blue and orange radiophotoluminescent (RPL) spectra and examine the dependence of the peak wavelengths and RPL area intensities on gate time. Moreover, we consider various micro-scale 3D patterns written on Ag-activated glass by a focused proton beam and evaluate their orange and blue RPL axial-profiles using two-photon excitation microscopy. Finally, we discuss the remarkable broadening of the Bragg curve observed in Ag-activated glass and argue that it should be attributed to the saturation effect and/or non-linearity effect from the viewpoint of the relation between the dose delivered and the signal.

中文翻译：

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双光子激发显微镜下放射光致发光玻璃的物理和剂量学特性

摘要 我们研究了暴露于各种能量质子束的银活化磷酸盐玻璃的物理和剂量学特性。我们展示了时间分辨蓝色和橙色放射光致发光 (RPL) 光谱，并检查了峰值波长和 RPL 区域强度对门时间的依赖性。此外，我们考虑了通过聚焦质子束在银激活玻璃上写入的各种微尺度 3D 图案，并使用双光子激发显微镜评估它们的橙色和蓝色 RPL 轴向剖面。最后，我们讨论了在银激活玻璃中观察到的布拉格曲线的显着加宽，并认为从传递的剂量和信号之间的关系的角度来看，这应该归因于饱和效应和/或非线性效应。