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Evaluation of fluorescent dye degradation indirectly induced by x-ray ionizing radiation

机译:X射线电离辐射间接诱发的荧光染料降解的评估

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This work evaluated the fluorescent dye degradation indirectly induced by ionizing radiation with high energy photons (50 keV). Aqueous gels of agarose with low concentrations of Rhodamine 6G and Fluorescein were submitted to doses of x-ray radiation up to 200 Gy. The dye degradation was analyzed by fluorescence spectroscopy, using an excitation light-emitting diode with a peak wavelength of 462 nm. A rate equation model of fluorophores and radicals' species populations was developed to describe the degradation time behavior of the fluorescent solutions. The model suggests fluorescent dyes should be used in dosimetry. (C) 2015 Optical Society of America
机译:这项工作评估了高能光子(50 keV)电离辐射间接引起的荧光染料降解。将低浓度若丹明6G和荧光素的琼脂糖水凝胶进行最高200 Gy的X射线辐射剂量。使用峰值波长为462 nm的激发发光二极管,通过荧光光谱法分析染料的降解。建立了荧光团和自由基物种种群的速率方程模型,以描述荧光溶液的降解时间行为。该模型建议在剂量测定中应使用荧光染料。 (C)2015年美国眼镜学会

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