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Proceedings Paper

Infrared luminescence of rare earth oxide materials
Author(s): Kentaro Toh; Tatsuo Shikama; Shinji Nagata; Bun Tsuchiya; Tsunemi Kakuta
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Paper Abstract

Radioluminescence from rare earth oxide materials was measured in the visible wavelength range and the range from 1000 to 3000 nm in an ion beam accelerator and a fission reactor of Japan Materials Testing Reactor (JMTR). In erbium oxide, peaks at 560, 660, and 1540 nm were observed by the proton beam irradiation, and the complicated luminescence peaks around 1800 and 2000 nm were observed by the proton beam irradiation and at the reactor full power operation of 50 MW. The peaks at 560, 660, and 1540 nm are attributed to the electron transition between the energy levels of Er3+ ions. The complicated luminescences observed in JMTR were quenched with the irradiation time elapsed, though the intensity was not changed by the irradiation of the proton beam of 2.6 x 1013 p/cm2s. It was considered that the precursors for the complicated luminescent peaks around 1800 and 2000 nm disappeared under the neutrons irradiation.

Paper Details

Date Published: 30 December 2003
PDF: 7 pages
Proc. SPIE 5199, Penetrating Radiation Systems and Applications V, (30 December 2003); doi: 10.1117/12.509474
Show Author Affiliations
Kentaro Toh, Tohoku Univ. (Japan)
Tatsuo Shikama, Tohoku Univ. (Japan)
Shinji Nagata, Tohoku Univ. (Japan)
Bun Tsuchiya, Tohoku Univ. (Japan)
Tsunemi Kakuta, Japan Atomic Energy Research Institute (Japan)


Published in SPIE Proceedings Vol. 5199:
Penetrating Radiation Systems and Applications V
H. Bradford Barber; F. Patrick Doty; Hans Roehrig, Editor(s)

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