کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7963333 | 1514144 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Helium retention behavior in simultaneously He+-H2+ irradiated tungsten
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
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 1.0â¯keV and 3.0â¯keV. He+ fluences were (0.5, 1.0, 10)â¯Ãâ¯1021 He+ mâ2 and H2+ fluence was 1.0â¯Ãâ¯1022â¯H+ mâ2,respectively. After irradiation, He desorption behavior was investigated by high temperature thermal desorption spectroscopy (HT-TDS) in the temperature range of R.T.-1773â¯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. 1.0â¯keV H2+ suppressed the He bubble growth and no bubbles can be observed at room temperature. On the other hand, 3.0â¯keV H2+ facilitated the formation of He bubbles and increased the He retention due to the additional damage introduction by energetic H2+.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 502, 15 April 2018, Pages 289-294
Journal: Journal of Nuclear Materials - Volume 502, 15 April 2018, Pages 289-294
نویسندگان
Qilai Zhou, Keisuke Azuma, Akihiro Togari, Miyuki Yajima, Masayuki Tokitani, Suguru Masuzaki, Naoaki Yoshida, Masanori Hara, Yuji Hatano, Yasuhisa Oya,