【正文】
右圖。即雙級電離過程:A*+=A 2++e。與 XPS相比, 優(yōu)點如下:1 可用電子激發(fā), 并形成聚焦( XPS只能用 X、 UV);2可掃描得到 AuE象, 直觀反映表面;3電子束流可調(diào)小, 使空間分辨率提高。實例 1: 木乃依所用的顏料分析150 145 140 135 130Binding Energy (eV)PbO2Pb3O4500 400 300 200 100 0Binding Energy (eV)OPb PbPbNCaCNaClXPS analysis showed that the pigment used on the mummy wrapping was Pb3O4 rather than Fe2O3Egyptian Mummy 2nd Century ADWorld Heritage MuseumUniversity of Illinoisn 本章部分本章部分 PPT圖圖 片由石和彬教授提供,片由石和彬教授提供, 謹(jǐn)謹(jǐn) 致致謝謝 意!意! 完完謝謝觀看 /歡迎下載BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAITH