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Optically Stimulated Luminescence (OSL) Signal


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The graph presented here shows the effect of the readout temperature on the optically stimulated luminescence (OSL) signal in BeO ceramics (Thermalox 995). The sample was irradiated with ionizing radiation and the luminescence output (near UV) was recorded as a function of time while stimulating in the visible region (420-550 nm). The observation is a time dependent decay of luminescence whose intensity is proportional to the absorbed radiation dose. The quenching energy of the luminescence signal can be obtained by plotting ln(TOSL) versus 1/T as shown by the data plotted as open circles in the inset graph. Inset layers are easily created in Origin using the Layer Tool. A similar dataset, as plotted in the inset with blue solid circles, can be obtained by measuring the OSL at various fixed temperatures as well. Using Origin's Linear Fit Tool to fit the linear part of the datasets, the quenching energies were found to be close to each other as can be seen by the red dashed lines.

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