Fast luminescence in vacuum ultraviolet region in heavy-ion-irradiated α-Al2O3

研究成果: Article査読

2 被引用数 (Scopus)

抄録

We analyzed the time-resolved luminescence properties of α-Al2O3 under heavy ion irradiations in the vacuum ultraviolet (VUV) wavelength region. A luminescence band at approximately 170 nm, at which a luminescence band was observed under VUV irradiation and was ascribed to self-shrunk excitons. The decay rate increased with the linear energy transfer (LET). The luminescence efficiency of the band increased sharply with the LET for the case of Xe irradiation, whose LET was estimated to be higher than the threshold LET for track formation. The fast decay rate and high luminescence intensity for Xe irradiation was explained according to the enhanced radiative rate caused by close interactions among excited states.

本文言語English
ページ(範囲)540-543
ページ数4
ジャーナルNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
365
DOI
出版ステータスPublished - 2015 12 15

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 器械工学

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