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Scaling properties in single collision model of light ion reflection

机译:光离子反射的单碰撞模型的缩放性质

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摘要

Light ion reflection from solids in the keV energy region has been studied within the single collision model. Particle and energy reflection coefficients as functions of the scaled transport cross section have been calculated numerically by utilizing the exact scattering function for the Kr-C potential and analytically with an effective power approximation for the same potential. The obtained analytical formulae approximate very accurately to the numerical results. Comparison of the calculated reflection coefficients with the experimental data and computer simulations for different light ion-heavy target combinations shows that the scaled transport cross section remains a convenient scaling parameter in the single collision domain, as adopted previously in multiple collision theory.
机译:在单碰撞模型中研究了在keV能量区域中来自固体的光离子反射。利用Kr-C势的精确散射函数,并通过有效地近似计算同一势的功率,已通过数值计算了作为比例传输截面的函数的粒子和能量反射系数。所获得的解析公式非常精确地近似于数值结果。计算得出的反射系数与不同轻离子重目标组合的实验数据和计算机仿真结果的比较表明,按比例缩放的传输截面在单碰撞域中仍然是方便的比例缩放参数,如先前在多重碰撞理论中所采用的那样。

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