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第二章离子散射谱(ISS) 对固体表面离子散射的研究,已有相当长的历史。1967年Smith首次利用低能离子散射作表面分析。一、低能离子散射的物理模型用低能(如0.2～2KeV)惰性气体离子(如He~+,Ne~+)与固体表面碰撞,可把离子与靶表层原子间的碰撞简化地当作两个孤立的自由粒子间的弹性碰撞来处理。按照de Broglie方程,物质波(即de Broglie波)的波长λ=h/p,p为动量,h为
The second chapter ion scattering spectroscopy (ISS) on the solid surface ion scattering has a long history. 1967 Smith for the first time using low-energy ion scattering for surface analysis. First, the physical model of low-energy ion scattering Low-energy (such as 0.2 ~ 2KeV) inert gas ions (such as He ~ +, Ne ~ +) collide with the solid surface can ion collide with the target surface atoms simplified as two Isolated free-particle elastic collision to deal with. According to the de Broglie equation, the wavelength of the material wave (ie de Broglie wave) λ = h / p, p is the momentum, h is