DEPENDENCE OF THE HEAVY-ION-INDUCED DESORPTION YIELD ON THE PRIMARY-ION ENERGY-LOSS

被引：22

作者：

BRANDL, D

SCHOPPMANN, C

SCHMIDT, R

NEES, B

OSTROWSKI, A

VOIT, H

机构：

[1] Physikalisches Institut, Universität Erlangen-N̈rnberg

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.43.5253

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dependence of the secondary-ion yield Y on the energy loss dE/dx of fast (MeV/u) primary ions has been measured for organic and inorganic samples. It is found that the dependence of Y on dE/dx can be expressed in the whole dE/dx range investigated (1 less-than-or-equal-to dE/dx less-than-or-equal-to 54 ke V-mu-g-1 cm2) as Y proportional-to (dE/dx - S)n, where S is a threshold energy loss. Different exponents n exist for positive and negative secondary ions as well as ions desorbed from different samples.

引用

页码：5253 / 5260

页数：8

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