Helium retention behavior in simultaneously He+-H2+ irradiated tungsten

Qilai Zhou; Keisuke Azuma; Akihiro Togari; Miyuki Yajima; Masayuki Tokitani; Suguru Masuzaki; Naoaki Yoshida; Masanori Hara; Yuji Hatano; Yasuhisa Oya

doi:10.1016/j.jnucmat.2018.02.035

Helium retention behavior in simultaneously He⁺-H₂⁺ irradiated tungsten

Qilai Zhou^*, Keisuke Azuma, Akihiro Togari, Miyuki Yajima, Masayuki Tokitani, Suguru Masuzaki, Naoaki Yoshida, Masanori Hara, Yuji Hatano, Yasuhisa Oya

^*この論文の責任著者

研究推進機構水素同位体科学研究センター

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

19 被引用数 (Scopus)

抄録

The purpose of this study is to elucidate helium (He) retention behavior in tungsten (W) under simultaneous He and hydrogen (H) irradiation. Polycrystalline-W was irradiated by He⁺ and H₂⁺ simultaneously with the energy of 1.0 keV and 3.0 keV. He⁺ fluences were (0.5, 1.0, 10) × 10²¹ He⁺ m⁻² and H₂⁺ fluence was 1.0 × 10²² H⁺ m⁻²,respectively. After irradiation, He desorption behavior was investigated by high temperature thermal desorption spectroscopy (HT-TDS) in the temperature range of R.T.-1773 K. Micro-structure changes of W after irradiation were observed by TEM. It was found that simultaneous irradiation with different H₂⁺ energy significantly changed He retention behavior. 1.0 keV H₂⁺ suppressed the He bubble growth and no bubbles can be observed at room temperature. On the other hand, 3.0 keV H₂⁺ facilitated the formation of He bubbles and increased the He retention due to the additional damage introduction by energetic H₂⁺.

本文言語	英語
ページ（範囲）	289-294
ページ数	6
ジャーナル	Journal of Nuclear Materials
巻	502
DOI	https://doi.org/10.1016/j.jnucmat.2018.02.035
出版ステータス	出版済み - 2018/04/15

ASJC Scopus 主題領域

核物理学および高エネルギー物理学
材料科学一般
原子力エネルギーおよび原子力工学

文献へのアクセス

10.1016/j.jnucmat.2018.02.035

引用スタイル

@article{46c831f29dd446a1a2e34cedf3cc6be3,

title = "Helium retention behavior in simultaneously He+-H2+ irradiated tungsten",

abstract = "The purpose of this study is to elucidate helium (He) retention behavior in tungsten (W) under simultaneous He and hydrogen (H) irradiation. Polycrystalline-W was irradiated by He+ and H2+ simultaneously with the energy of 1.0 keV and 3.0 keV. He+ fluences were (0.5, 1.0, 10) × 1021 He+ m−2 and H2+ fluence was 1.0 × 1022 H+ m−2,respectively. After irradiation, He desorption behavior was investigated by high temperature thermal desorption spectroscopy (HT-TDS) in the temperature range of R.T.-1773 K. Micro-structure changes of W after irradiation were observed by TEM. It was found that simultaneous irradiation with different H2+ energy significantly changed He retention behavior. 1.0 keV H2+ suppressed the He bubble growth and no bubbles can be observed at room temperature. On the other hand, 3.0 keV H2+ facilitated the formation of He bubbles and increased the He retention due to the additional damage introduction by energetic H2+.",

keywords = "He retention, Hydrogen isotope, Simultaneous irradiation, TDS, Tungsten",

author = "Qilai Zhou and Keisuke Azuma and Akihiro Togari and Miyuki Yajima and Masayuki Tokitani and Suguru Masuzaki and Naoaki Yoshida and Masanori Hara and Yuji Hatano and Yasuhisa Oya",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = apr,

day = "15",

doi = "10.1016/j.jnucmat.2018.02.035",

language = "英語",

volume = "502",

pages = "289--294",

journal = "Journal of Nuclear Materials",

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TY - JOUR

T1 - Helium retention behavior in simultaneously He+-H2+ irradiated tungsten

AU - Zhou, Qilai

AU - Azuma, Keisuke

AU - Togari, Akihiro

AU - Yajima, Miyuki

AU - Tokitani, Masayuki

AU - Masuzaki, Suguru

AU - Yoshida, Naoaki

AU - Hara, Masanori

AU - Hatano, Yuji

AU - Oya, Yasuhisa

PY - 2018/4/15

Y1 - 2018/4/15

N2 - The purpose of this study is to elucidate helium (He) retention behavior in tungsten (W) under simultaneous He and hydrogen (H) irradiation. Polycrystalline-W was irradiated by He+ and H2+ simultaneously with the energy of 1.0 keV and 3.0 keV. He+ fluences were (0.5, 1.0, 10) × 1021 He+ m−2 and H2+ fluence was 1.0 × 1022 H+ m−2,respectively. After irradiation, He desorption behavior was investigated by high temperature thermal desorption spectroscopy (HT-TDS) in the temperature range of R.T.-1773 K. Micro-structure changes of W after irradiation were observed by TEM. It was found that simultaneous irradiation with different H2+ energy significantly changed He retention behavior. 1.0 keV H2+ suppressed the He bubble growth and no bubbles can be observed at room temperature. On the other hand, 3.0 keV H2+ facilitated the formation of He bubbles and increased the He retention due to the additional damage introduction by energetic H2+.

AB - The purpose of this study is to elucidate helium (He) retention behavior in tungsten (W) under simultaneous He and hydrogen (H) irradiation. Polycrystalline-W was irradiated by He+ and H2+ simultaneously with the energy of 1.0 keV and 3.0 keV. He+ fluences were (0.5, 1.0, 10) × 1021 He+ m−2 and H2+ fluence was 1.0 × 1022 H+ m−2,respectively. After irradiation, He desorption behavior was investigated by high temperature thermal desorption spectroscopy (HT-TDS) in the temperature range of R.T.-1773 K. Micro-structure changes of W after irradiation were observed by TEM. It was found that simultaneous irradiation with different H2+ energy significantly changed He retention behavior. 1.0 keV H2+ suppressed the He bubble growth and no bubbles can be observed at room temperature. On the other hand, 3.0 keV H2+ facilitated the formation of He bubbles and increased the He retention due to the additional damage introduction by energetic H2+.

KW - He retention

KW - Hydrogen isotope

KW - Simultaneous irradiation

KW - TDS

KW - Tungsten

UR - http://www.scopus.com/inward/record.url?scp=85042706537&partnerID=8YFLogxK

U2 - 10.1016/j.jnucmat.2018.02.035

DO - 10.1016/j.jnucmat.2018.02.035

M3 - 学術論文

AN - SCOPUS:85042706537

SN - 0022-3115

VL - 502

SP - 289

EP - 294

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

Helium retention behavior in simultaneously He+-H2+ irradiated tungsten

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ASJC Scopus 主題領域

文献へのアクセス

フィンガープリント

引用スタイル

Helium retention behavior in simultaneously He⁺-H₂⁺ irradiated tungsten