Effect of helium irradiation fluence on HenVm cluster evolution in nickel studied by positron annihilation spectroscopy

Yihao Gong; Shuoxue Jin; Eryang Lu; Te Zhu; Ligang Song; Daqing Yuan; Baoyi Wang; Xingzhong Cao

doi:10.56646/jjapcp.7.0_011105

3rd China-Japan Joint Workshop on Positron Science (JWPS2017)

セッションID: 011105

DOI https://doi.org/10.56646/jjapcp.7.0_011105

会議情報

主催: The organizing committee of JWPS2017

会議名: 3rd China-Japan Joint Workshop on Positron Science (JWPS2017)

開催地: Hefei, China

開催日: 2017/06/08 - 2017/06/10

Metals and semiconductors

Effect of helium irradiation fluence on He_nV_m cluster evolution in nickel studied by positron annihilation spectroscopy

Yihao Gong, Shuoxue Jin, Eryang Lu, Te Zhu, Ligang Song, Daqing Yuan, Baoyi Wang, Xingzhong Cao

著者情報

Yihao Gong
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
University of Chinese Academy of Sciences, Beijing 100039, China
Shuoxue Jin
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Eryang Lu
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Te Zhu
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
University of Chinese Academy of Sciences, Beijing 100039, China
Ligang Song
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
University of Chinese Academy of Sciences, Beijing 100039, China
Daqing Yuan
China Institute of Atomic Energy, Beijing 102413, China
Baoyi Wang
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
University of Chinese Academy of Sciences, Beijing 100039, China
Xingzhong Cao
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

会議録・要旨集オープンアクセス

詳細

抄録

Polycrystalline nickel was irradiated using 50 keV He ions at room temperature. The irradiated fluences were 5 × 10¹³, 5 × 10¹⁴, and 5 × 10¹⁵ He⁺ cm⁻², respectively. Positron annihilation Doppler broadening spectroscopy (DBS) was used to characterize the irradiation-induced defect evolution. The DBS results show that a large amount of vacancy defects were introduced in the specimens after helium irradiation. In addition, the DBS data could be also interpreted as the formation of helium-vacancy (He_nV_m) clusters due to combination between vacancies and helium atoms.

責任著者(Corresponding author)

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