Hydrogen release behavior from graphite under pulsed laser irradiation

被引:11
|
作者
Shibahara, T [1 ]
Sakawa, Y [1 ]
Tanabe, T [1 ]
机构
[1] Nagoya Univ, Grad Sch Engn, Dept Nucl Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
关键词
laser ablation; laser application; graphite; tritium retention; tritium removal;
D O I
10.1016/j.jnucmat.2004.10.154
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Mass distribution and time variation of the emitted ions by time-of-flight mass spectrometer and desorbed gases by a quadrupole mass spectrometer from the H+-implanted graphite sample by the pulsed ArF (193 nm) laser irradiation have been studied. The averaged ion mass is smaller for the larger laser fluence. Most of the implanted H in the laser irradiated area was released out after a few 10 shots, when the laser fluence is above the ablation threshold. However, the ablation accompanies large amount of hydrocarbon release. Changing the power of the laser, the reduction of hydrocarbon release is studied. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:654 / 658
页数:5
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