Abstract In the linear modulation (LM) technique of optically stimulated luminescence (OSL), the stimulation power changes with a linear ramping rate, while the signal intensity starts to increase from background level and continues by forming peaks. In some cases as in the present study, the LM-OSL curve has a non-conventional shape with a strongly decaying signal at the beginning of the stimulation. In order to deal with this dominant decaying component, two different deconvolution approaches were used by adding to the initial part of the LM-OSL curves, besides the conventional LM-OSL components, (a) a phosphorescence (PH) decaying component and (b) a continuous wave (CW) - OSL decaying component . The fitting results showed that temperature dependences of the fitting parameters (τ and σ) contradict standard OSL theory, so the non-conventional dominant decay component is not another CW-OSL. This non-conventional component could be attributed to an intense optically stimulated phosphorescence (OSP) component, due to the experimentally verified stimulated temperature dependence of the decay coefficient λ. This signal is much more intense at stimulation temperatures 125 °C and below, with various arguments suggesting that at these temperatures the signal originates from the 110 °C TL trap.

中文翻译：

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处理漂白后石英中非常规的 LM-OSL 曲线形状；解卷积方法

摘要 在光受激发光（OSL）的线性调制（LM）技术中，刺激功率以线性斜率变化，而信号强度从背景水平开始增加并继续形成峰值。在本研究中的某些情况下，LM-OSL 曲线具有非常规形状，在刺激开始时具有强烈衰减的信号。为了处理这种主要的衰减分量，除了传统的 LM-OSL 分量之外，通过添加到 LM-OSL 曲线的初始部分，使用了两种不同的反卷积方法，（a）磷光（PH）衰减分量和（b） ) 连续波 (CW) - OSL 衰减分量。拟合结果表明，拟合参数（τ 和 σ）的温度依赖性与标准 OSL 理论相矛盾，所以非常规的主要衰减分量不是另一个 CW-OSL。由于经过实验验证的衰减系数 λ 的受激温度依赖性，这种非常规组件可归因于强烈的光激发磷光 (OSP) 组件。该信号在 125 °C 及以下的刺激温度下更加强烈，各种论据表明，在这些温度下，信号来自 110 °C 的 TL 陷阱。