The authors examined synergistic effects during sequential irradiation of zinc oxide powders by electrons and protons with an energy of 100 keV. Two modes were employed: 1) electrons followed by protons; 2) protons followed by electrons. It was found that the additive coefficient, when determined by the change in the integral absorption coefficient of solar radiation and calculated via diffuse reflectance spectra within 0.3–2.1 μm, depends on the irradiation mode and on the type of radiation-induced defects (i.e., intrinsic point defects or free electrons).

中文翻译：

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分别以100 keV的能量通过电子和质子辐照后，ZnO粉末的光学性质发生变化

作者研究了在电子和质子能量为100 keV的氧化锌粉末顺序照射过程中的协同效应。采用两种模式：1）电子，然后是质子；2）质子，然后是电子。我们发现，当通过太阳辐射的整体吸收系数的变化确定并通过0.3–2.1μm范围内的漫反射光谱计算得出的相加系数时，取决于辐射模式和辐射诱发缺陷的类型（即，本征点缺陷或自由电子）。