The luminescent properties of X-ray phosphors based on optically stimulated luminescence (OSL) are quite fortuitous, since it demands the existence of both trapping and recombination (luminescent) centers. Nevertheless, lanthanide-doped materials have changed this paradigm by two main reasons: lanthanide doping provides the development of high efficient phosphors and allows for a relatively easy prediction of the energy-levels of the trapping centers involved in OSL phenomena. In view of that, this work reveals some luminescent and dosimetric properties of a phosphor never reported before, i.e., gadolinium and silver doped $Ca{B}_6{O}_{10}$ polycrystalline samples. The phosphor synthesis followed a solid state reaction method and was optimized regarding the concentration of dopants for a better OSL response. Comparing to non-doped samples, the OSL showed an enhancement of ∼ 140x when doped with gadolinium and silver. The phosphor exhibited a high UV emission under blue stimulation (475 nm), with a linear dose-response for the range analyzed (1 mGy up to 2 Gy) and a minimum detectable dose of ∼ 40 μGy. The material exhibited a fading of ∼ 30% within the first 24 h after irradiation, which is attributed to shallow traps created by $A{g}^{+}$ incorporation. Wavelength-resolved thermoluminescence (TL) and OSL spectra revealed a sharp 317 nm emission, which is ascribed to ⁶P_J → ⁸S_7/2 transition of $G{d}^{3+}$ centers, indicating that the $G{d}^{3+}$ has a crucial role in the luminescence mechanisms. In addition, the OSL spectrum exhibited also a broad emission at 350 nm attributed to ³D_J, ¹D₂ → ¹S₀ transitions of $A{g}^{+}$ centers. Insights on the luminescent processes are given, including the role of $G{d}^{3+}$ and $A{g}^{+}$ centers in the trapping and recombination processes responsible for the TL and OSL. New mechanisms of luminescent enhancement by silver incorporation are suggested.

基于光激发发光（OSL）的X射线荧光粉的发光特性非常偶然，因为它需要同时存在俘获和复合（发光）中心。尽管如此，掺杂镧系元素的材料已经改变了这一范式，主要有两个原因：镧系元素的掺杂提供了高效磷光体的发展，并允许相对容易地预测OSL现象所涉及的陷阱中心的能级。有鉴于此，这项工作揭示了以前从未报道过的磷光体的某些发光和剂量特性，即g和银掺杂$C\mathrm{一种}{乙}_6{Ø}_{10}$多晶样品。磷光体的合成遵循固态反应方法，并针对掺杂剂的浓度进行了优化，以实现更好的OSL响应。与未掺杂样品相比，当掺入showed和银时，OSL表现出约140倍的增强。所述磷光体显示出在蓝光下刺激（475 nm）的高UV发射，与范围内的线性剂量-反应分析（1毫戈瑞最多2戈瑞）和〜40的最小可检测的剂量μ戈瑞。该材料在辐照后的最初24小时内显示约30％的褪色，这归因于由$\mathrm{一种}{G}^{+}$成立。波长分辨的热致发光（TL）和OSL光谱显示了317 nm的清晰发射，这归因于⁶ P _J → ⁸ S _7/2跃迁。$G{d}^{3+}$ 中心，表明 $G{d}^{3+}$在发光机制中起着至关重要的作用。另外，OSL光谱在350 nm处也显示出宽发射，这归因于³ D _J，¹ D ₂ → ¹ S ₀跃迁。$\mathrm{一种}{G}^{+}$中心。给出了有关发光过程的见解，包括$G{d}^{3+}$ 和 $\mathrm{一种}{G}^{+}$集中在负责TL和OSL的捕获和重组过程中。提出了通过引入银增强发光的新机理。