[Table of Contents]

Plasma and Fusion Research

Volume 7, 2405043 (2012)

Regular Articles

Ion-Beam Induced Luminescence and Damage of Er2O3
Daiji KATO, Hiroyuki A. SAKAUE, Izumi MURAKAMI, Teruya TANAKA, Takeo MUROGA and Akio SAGARA
Fusion Systems Research Division, Department of Helical Plasma Research, National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
(Received 11 December 2011 / Accepted 28 February 2012 / Published 10 May 2012)

Abstract

Ion-beam induced luminescence of sintered Er2O3 samples irradiated by Ar+ ion-beams was measured in a visible range. In this experiment, three emission bands were observed at 500-520, 540-570, and 640-690nm. The measured luminescence band at 640-690nm is resolved into Lorentzian Stark component having a ∼ 1012 Hz width in frequency. Center wavelengths of the Stark components agree with those of intra-4f transitions of Er3+ (4f11) ions situated at C2 symmetry cation sites in pure Er2O3. However, resonance broadening due to nearby Er3+ in the crystal accounts only 1% of the total width. Depopulation of the crystalline oxide in irradiated regions is inferred from decreasing intensity of the emission band at 640-690nm during continuous irradiation. The emission bands at 500-520 and 540-570nm still remained in heavily damaged samples look similar with those observed with a metallic Er target.

Keywords

ion-beam induced luminescence, erbium oxide, electric insulating coating, tritium permeation barrier, neutron damage, resonance broadening

DOI: 10.1585/pfr.7.2405043

Full Text

PDF format (939Kbytes) PDF Download

References

  • [1] T. Muroga et al., J. Nucl. Mater. 367-370, 780 (2007).
  • [2] D. Levchuk et al., J. Nucl. Mater. 367-370, 1033 (2007).
  • [3] A. Polman, J. Appl. Phys. 82, 1 (1997).
  • [4] T. Tanaka et al., J. Nucl. Mater. 417, 794 (2011).
  • [5] K. Motohashi et al., Plasma Conference 2011 (Kanazawa, 2011) 22P174-B.
  • [6] J.B. Gruber et al., J. Appl. Phys. 108, 023109 (2010).
  • [7] M.J. Weber, Phys. Rev. 171, 283 (1968).
  • [8] H.R. Griem, Plasma Spectroscopy (McGraw-Hill, New York, 1964) p. 95.
  • [9] C.A. Morrison et al., J. Chem. Phys. 79, 4758 (1983).
  • [10] J.F. Ziegler, J.P. Biersack and U. Littmark, The Stopping and Range of Ions in Solids (Pergamon Press, New York, 1985).

This paper may be cited as follows:

Daiji KATO, Hiroyuki A. SAKAUE, Izumi MURAKAMI, Teruya TANAKA, Takeo MUROGA and Akio SAGARA, Plasma Fusion Res. 7, 2405043 (2012).