Abstract
The ion-induced luminescence behavior and damage processes were investigated for Cr-doped alumina (ruby, α-Al2O3: 0.5 wt% Cr) under H and He ion irradiation with incident energies from 0.2 to 3.0 MeV. The total yield of the R-line luminescence (693 nm) was proportional to the projected range of the incident H ions. However, the He induced luminescence yield was not directly related to either the projected range or the incident energy. The ion-induced luminescence efficiency for the H ion was independent of the electronic energy loss, and that for the He ion decreased with increasing the electronic energy loss. The yields of the R-line luminescence rapidly diminished at the beginning of the ion irradiation. The reduction rate of the luminescence was adequately explained in terms of the nuclear energy deposition, indicating that the R-line luminescence centers were damaged by nuclear collisions.
Original language | English |
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Pages (from-to) | 1112-1116 |
Number of pages | 5 |
Journal | Journal of Nuclear Materials |
Volume | 367-370 B |
Issue number | SPEC. ISS. |
DOIs | |
Publication status | Published - 2007 Aug 1 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Materials Science(all)
- Nuclear Energy and Engineering