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American Mineralogist

Journal of Earth and Planetary Materials

Ed. by Baker, Don / Xu, Hongwu / Swainson, Ian

IMPACT FACTOR 2018: 2.631

CiteScore 2018: 2.55

SCImago Journal Rank (SJR) 2018: 1.355
Source Normalized Impact per Paper (SNIP) 2018: 1.103

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Volume 100, Issue 5-6


A photoluminescence study of REE3+ emissions in radiation-damaged zircon

Christoph Lenz
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  • Institut für Mineralogie and Kristallographie, Universität Wien, Althanstrasse 14, 1090 Wien, Austria
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/ Lutz Nasdala
  • Institut für Mineralogie and Kristallographie, Universität Wien, Althanstrasse 14, 1090 Wien, Austria
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Published Online: 2015-05-12 | DOI: https://doi.org/10.2138/am-2015-4894ccbyncnd


A series of natural zircon samples (with U concentrations of 140-2600 ppm and ranging from well crystalline to severely radiation damaged) were investigated by means of REE3+ photoluminescence spectroscopy. We found systematic changes in REE3+ emissions depending on the accumulated radiation damage expressed by the effective time-integrated a-dose of zircon samples. Structural reconstitution as caused by dry annealing resulted in intensity gains and decreases of half-widths of REE3+ emissions. The band half-widths of distinct luminescence Stark’s levels of the 4F9/26H13/2 transition of Dy3+ (~17 250 cm-1; ~580 nm wavelength) and the 4F3/24I9/2 transition of Nd3+ (~11 300 cm-1; ~885 nm wavelength) were found to correlate sensitively with the degree of radiation damage accumulated. These REE3+ emissions are proposed as potential measure of the irradiation-induced structural disorder of zircon. The two emissions are considered particularly suitable because (1) they are commonly detected in PL spectra of natural zircon, and (2) they are hardly biased by other emissions or Stark’s levels. Preliminary calibration curves that relate band-width increases to the a dose were established using a suite of well-characterized Sri Lankan zircon. Band broadening upon increasing corpuscular self-irradiation is assigned to increasing structural destruction, i.e., the increasing perturbation of REE3+ cationic lattice sites. Possible advantages of REE3+ luminescence spectroscopy, complementary to Raman spectroscopy, as method to quantify structural radiation damage are discussed.

Keywords: Radiation damage; rare-earth elements (REE); photoluminescence spectroscopy; hyperspectral PL mapping; zircon

About the article

Received: 2014-01-21

Accepted: 2014-12-01

Published Online: 2015-05-12

Published in Print: 2015-05-01

Citation Information: American Mineralogist, Volume 100, Issue 5-6, Pages 1123–1133, ISSN (Online) 1945-3027, ISSN (Print) 0003-004X, DOI: https://doi.org/10.2138/am-2015-4894ccbyncnd.

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© 2015 by Walter de Gruyter Berlin/Boston. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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