ABSOLUTE CROSS-SECTIONS FOR ELECTRON-IMPACT IONIZATION OF AG2

被引：18

作者：

FRANZREB, K ^{[1
]}

WUCHER, A ^{[1
]}

OECHSNER, H ^{[1
]}

机构：

[1] UNIV KAISERSLAUTERN,SFB 91,W-6750 KAISERSLAUTERN,GERMANY

来源：

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS | 1991年 / 19卷 / 1-4期

关键词：

D O I：

10.1007/BF01448259

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The previously measured relative cross section function for electron impact ionization (EII) of neutral Ag2 has now been calibrated quantitatively by combining the electron impact ionization with in situ non resonant two photon ionization (NR2PI). By comparing the NR2PI saturation intensities measured for Ag2+ and Ag+ with the corresponding EII intensities, the ratio between the electron impact ionization cross sections (EIICS) of neutral Ag2 and Ag was determined to be sigma-Ag2/sigma-Ag = 1.53 for an electron energy of 46 eV. This result agrees well with the geometric n2/3-rule (sigma-X(n) approximately n2/3) commonly proposed for the dependence of the EIICS of clusters X(n) on the cluster size n.

引用

页码：77 / 79

页数：3

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