ALUMINUM CLUSTER IONS GENERATED BY A LIQUID-METAL ION-SOURCE

被引：4

作者：

SAKAGUCHI, K ^{[1
]}

MIHAMA, K ^{[1
]}

SAITO, Y ^{[1
]}

机构：

[1] MIE UNIV,DEPT ELECT ENGN,TSU 541,JAPAN

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 70卷 / 09期

关键词：

D O I：

10.1063/1.349011

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Aluminum cluster ions Aln+ are generated by a liquid metal ion source and observed up to n = 10 using a magnetic mass analyzer. Relative integrated intensities of cluster ions as a function of n show a distinct step between n = 7 and 8, which is explained by the electronic shell model. Cluster ions have lower kinetic energy compared with monomer ions which are accelerated to the full energy. Moreover, energy spread of cluster ions is larger than that of monomer ions. These results are attributed to the difference of ion formation mechanism. In addition to the fully accelerated monomer ions, at a high ion current region there also appear monomer ions with energy deficit which are formed in the same process as cluster ions.

引用

页码：5049 / 5053

页数：5

共 28 条

[1] THE EMISSION CHARACTERISTICS OF AN ALUMINUM LIQUID-METAL ION-SOURCE [J].