Effect of the displacement damage from argon ion irradiation on the synergistic effect of helium-hydrogen in tungsten

Fangshu Liu; Shixiang Peng; Haitao Ren; Zhong Long; Wenjia Han; Jiangang Yu; Zhe Chen; Kaigui Zhu

doi:10.1016/j.fusengdes.2014.05.023

Effect of the displacement damage from argon ion irradiation on the synergistic effect of helium-hydrogen in tungsten

Fangshu Liu, Shixiang Peng, Haitao Ren, Zhong Long, Wenjia Han, Jiangang Yu, Zhe Chen, Kaigui Zhu

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The effect of argon ion pre-irradiation on helium and hydrogen ion irradiation was investigated in tungsten. At the same time, comparative experiments were carried out on the irradiation of helium and hydrogen ions in tungsten. Without the argon ion irradiation, the energy of 35 keV hydrogen ions mainly accelerated the coalescence of defects created by the 60 keV helium ions, the irradiation damage degree increased with hydrogen ion fluence increasing. With the argon ion irradiation, lots of voids were created by argon ion irradiation, which increased the helium and hydrogen retention and the synergistic effect of helium-hydrogen in tungsten. In the same hydrogen fluence, the surface damage degree with argon ion pre-irradiation was higher than that without argon ion pre-irradiation.

Original language	English
Pages (from-to)	2516-2522
Number of pages	7
Journal	Fusion Engineering and Design
Volume	89
Issue number	11
DOIs	https://doi.org/10.1016/j.fusengdes.2014.05.023
State	Published - Nov 1 2014
Externally published	Yes

Funding

This research is supported by National Magnetic Confinement Fusion Programs with Grant No. 2011GB108008 and 2013GB109003 , and National Natural Science Foundation of China with Grant No. 51171006 .

Funders	Funder number
National Natural Science Foundation of China	51171006
National Natural Science Foundation of China
National Magnetic Confinement Fusion Program of China	2013GB109003, 2011GB108008
National Magnetic Confinement Fusion Program of China

Keywords

Argon ion
Damage
Irradiation
Tungsten

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10.1016/j.fusengdes.2014.05.023

Cite this

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abstract = "The effect of argon ion pre-irradiation on helium and hydrogen ion irradiation was investigated in tungsten. At the same time, comparative experiments were carried out on the irradiation of helium and hydrogen ions in tungsten. Without the argon ion irradiation, the energy of 35 keV hydrogen ions mainly accelerated the coalescence of defects created by the 60 keV helium ions, the irradiation damage degree increased with hydrogen ion fluence increasing. With the argon ion irradiation, lots of voids were created by argon ion irradiation, which increased the helium and hydrogen retention and the synergistic effect of helium-hydrogen in tungsten. In the same hydrogen fluence, the surface damage degree with argon ion pre-irradiation was higher than that without argon ion pre-irradiation.",

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AU - Liu, Fangshu

AU - Peng, Shixiang

AU - Ren, Haitao

AU - Long, Zhong

AU - Han, Wenjia

AU - Yu, Jiangang

AU - Chen, Zhe

AU - Zhu, Kaigui

PY - 2014/11/1

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N2 - The effect of argon ion pre-irradiation on helium and hydrogen ion irradiation was investigated in tungsten. At the same time, comparative experiments were carried out on the irradiation of helium and hydrogen ions in tungsten. Without the argon ion irradiation, the energy of 35 keV hydrogen ions mainly accelerated the coalescence of defects created by the 60 keV helium ions, the irradiation damage degree increased with hydrogen ion fluence increasing. With the argon ion irradiation, lots of voids were created by argon ion irradiation, which increased the helium and hydrogen retention and the synergistic effect of helium-hydrogen in tungsten. In the same hydrogen fluence, the surface damage degree with argon ion pre-irradiation was higher than that without argon ion pre-irradiation.

AB - The effect of argon ion pre-irradiation on helium and hydrogen ion irradiation was investigated in tungsten. At the same time, comparative experiments were carried out on the irradiation of helium and hydrogen ions in tungsten. Without the argon ion irradiation, the energy of 35 keV hydrogen ions mainly accelerated the coalescence of defects created by the 60 keV helium ions, the irradiation damage degree increased with hydrogen ion fluence increasing. With the argon ion irradiation, lots of voids were created by argon ion irradiation, which increased the helium and hydrogen retention and the synergistic effect of helium-hydrogen in tungsten. In the same hydrogen fluence, the surface damage degree with argon ion pre-irradiation was higher than that without argon ion pre-irradiation.

KW - Argon ion

KW - Damage

KW - Irradiation

KW - Tungsten

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Effect of the displacement damage from argon ion irradiation on the synergistic effect of helium-hydrogen in tungsten

Abstract

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Keywords

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