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研究了快速C60 离子团与固体材料的相互作用过程 .借助于线性介电响应理论及等离子 极点近似介电函数 ,推导出作用在团簇中单个离子上的动力学相互作用力 ,并建立了一套描述离子团中单个离子运动的方程组 .通过数值求解运动方程组 ,可以发现 ,对于高速C60 离子团在固体中穿行时 ,由于动力学相互作用力的影响 ,使得库仑爆炸图形呈现出很强的非球对称性 ,即离子团中的导航离子群爆炸得较快 ,而尾随离子群则保持相对地稳定
The interaction between fast C60 ion clusters and solid materials was investigated. By means of the linear dielectric response theory and the approximate dielectric function of the plasma poles, the kinetic interaction force acting on a single ion in a cluster was deduced and a Set of equations describing the motion of individual ions in an ion cluster. By solving the equations of motion numerically, it can be found that the Coulomb explosion pattern appears strong due to the influence of the kinetic interaction forces Of the non-spherical symmetry, that is, ion groups in the ion bomb explode faster, while the trailing ion population remained relatively stable