Luminescence Properties of Nd2O3-doped ...

New Physics: Sae Mulli, Vol. 65, No. 3, March 2015, pp. 255∼260

DOI: 10.3938/NPSM.65.255

Luminescence Properties of Nd2 O3 -doped Gadolinium-Borate Glass Scintillators D. H. Ha · H. J. Kim∗ · J. M. Park Department of Physics, Kyunqpook National University, Daegu 702-701, Korea

J. Kaewhao Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Thailand (Received 9 December 2014 : revised 11 February 2015 : accepted 13 February 2015)

Glass scintillators have good radiation hardness and high chemical and thermal resistance. Therefore, glass scintillators are suitable for use in the high-energy physics, nuclear power, and so on. Because the fabrication of glass scintillators is not difficult, adding various dopants is easy. Thus, we doped rare-earth elements in glass scintillators in order to increase their luminescence properties. In this study, we used Nd2 O3 -doped glass scintillators with a formula of (55-x)B2 O3 :25Gd2 O3 :10SiO2 :10CaO:xNd2 O3 (x: 0.05 ∼ 2.50 mol%). We measured the absorption spectrum, the X-ray-induced emission spectrum, and the photoluminescence of Nd2 O3 -doped gadolinium-borate glass scintillators. The absorption spectrum followed the f-f transition of Nd3+ ions. In the X-ray-induced emission spectrum, an emission peak was observed at 890 nm. The photon emission peaks are 800 nm and 890 nm, and excitation peaks are 542 nm, 592 nm and 653 nm. PACS numbers: 29.40.Mc, 78.55.Hx, 81.05.Pj Keywords: Nd2 O3 , Glass, Scintillator, Luminescence properties, Rare earth, Lanthanide

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J. Kaewhao Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Thailand (2014¸ 12 4 Z 9{ ~ 9 Î6 Ã §, 2015¸ £ 2 4 11{ Z Ã 9 º&

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q í \ ¦ 255 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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