Guided transmission of oxygen ions through Al2O3 nanocapillaries

被引：1

作者：

Chen Yi-Feng ^{[1
]}

Chen Xi-Meng ^{[1
]}

Lou Feng-Jun ^{[1
]}

Xu Jin-Zhang ^{[1
]}

Shao Jian-Xiong ^{[1
]}

Sun Guang-Zhi ^{[1
]}

Wang Jun ^{[1
]}

Xi Fa-Yuan ^{[1
]}

Yin Yong-Zhi ^{[1
]}

Wang Xing-An ^{[1
]}

Xu Jun-Kui ^{[1
]}

Cui Ying ^{[1
]}

Ding Bao-Wei ^{[1
]}

机构：

[1] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China

来源：

CHINESE PHYSICS B | 2009年 / 18卷 / 07期

基金：

中国国家自然科学基金;

关键词：

capillary guiding; tilt angle; energy dependence; charge state dependence; HIGHLY-CHARGED IONS; HOLLOW ATOMS; EMISSION; TIME;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The transmissions of oxygen ions through Al2O3 nanocapillaries each 50 nm in diameter and 10 mu m in length at a series of different tilt angles are measured, where the ions with energies ranging from 10 to 60 keV and charge states from 1 up to 6 are involved. The angular distribution and the transmission yields of transported ions are investigated. Our results indicate both the existence of a guiding effect when ions pass through the capillary and a significant dependence of the ion transmission on the energy and the charge state of the ions. The guiding effects are observed to be enhanced at lower projectile energies and higher charge states. Meanwhile, the results also exhibit that the transmission yields increase as the tilt angle decreases at a given energy and charge state.

引用

页码：2739 / 2743

页数：5

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