Near-surface investigation of positron diffusion length in helium-implanted Fe9Cr and its ODS variant

0542988 - FZÚ 2022 RIV NL eng J - Článek v odborném periodiku
Degmová, J. - Kršjak, V. - Shen, T.L. - Šimeg Veterniková, J. - Gatciová, A. - Sojak, S. - Hruška, Petr
Near-surface investigation of positron diffusion length in helium-implanted Fe9Cr and its ODS variant.
Applied Surface Science. Roč. 538, Feb (2021), č. článku 148004. ISSN 0169-4332. E-ISSN 1873-5584
Institucionální podpora: RVO:68378271
Klíčová slova: f/m steels * He⁺ implantation * slow positron Doppler broadening technique * positron diffusion length
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 7.392, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.apsusc.2020.148004

In the present paper, we employ the depth sensitive slow positron Doppler broadening technique to characterise the positron diffusion in various near-surface layers of He+ implanted f/m steels. One of the frequently used positron annihilation parameters, with a high sensitivity to radiation-induced defects in a wide range of displacement damage, is the positron diffusion length. This parameter expresses the probability of the back diffusion of positrons to the surface and reflects the microstructural damage.
Trvalý link: http://hdl.handle.net/11104/0320306