DEUTERIUM RETENTION IN TUNGSTEN WITH DIFFERENT GRAIN ELONGATION DIRECTION IRRADIATED BY PLASMA IN APSEDAS

被引：0
|
作者：
Rusinov, A. [1 ]
Sakamoto, M. [2 ]
Honda, K. [1 ]
Ohyama, R. [1 ]
Yoshida, N. [3 ]
Zushi, H. [3 ]
Tanabe, T. [1 ]
Takagi, I. [4 ]
机构：
[1] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Fukuoka 812, Japan
[2] Univ Tsukuba, Plasma Res Ctr, Tsukuba, Ibaraki 305, Japan
[3] Kyushu Univ, Res Inst Appl Mech, Fukuoka 812, Japan
[4] Kyoto Univ, Grad Sch Engn, DNE, Kyoto 6068501, Japan
来源：
FUSION SCIENCE AND TECHNOLOGY | 2013年 / 63卷 / 1T期
关键词：
HYDROGEN;
D O I：
10.13182/FST13-A16912
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Deuterium retention after the low energy plasma irradiation was investigated using the polycrystalline tungsten samples of which grain elongation directions are parallel and perpendicular with respect to the surface. Fluence dependence of the retention measured by means of thermal desorption spectroscopy showed that it is 2-5 times larger for the sample with the perpendicular grain elongation. Thermal desorption of trapped deuterium has been modeled under the fast diffusion assumption with the defects trapping energy of about 2 eV. Possible mechanism of the deuterium retention and thermal desorption has been proposed.
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页码：229 / 232
页数：4
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