Luminescence Properties of Nd 2 O 3 -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 lumi- nescence properties. In this study, we used Nd
2O
3-doped glass scintillators with a formula of (55-x)B
2O
3:25Gd
2O
3:10SiO
2:10CaO:xNd
2O
3(x: 0.05 ∼ 2.50 mol%). We measured the absorp- tion spectrum, the X-ray-induced emission spectrum, and the photoluminescence of Nd
2O
3-doped gadolinium-borate glass scintillators. The absorption spectrum followed the f-f transition of Nd
3+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: Nd
2O
3, Glass, Scintillator, Luminescence properties, Rare earth, Lanthanide
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6 00 å · » ý ¡® £ ∗ · + ä * >
â
· ¡ ¤ @ / < Æ § Ó ü t o < Æõ , @ /½ ¨ 702-701
J. Kaewhao
Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Thailand
(2014¸ 12 Z 4 9{ 9 ~ Ã Î6 £ §, 2015¸ 2 Z 4 11{ 9 Ã º& ñ : r ~ Ã Î6 £ §, 2015¸ 2 Z 4 13{ 9 > F S X & ñ )
Ä
»o $ 3 F g ^ H ~ ½ Ó \ @ /ô Ç $ ½ Ó ¸ Z } ¦ o < Æ& h , \ P & h ? /$ í s Z } ¦\ -t Ó ü t o x 9 " é ¶
§ 4 ì r 1 p x \ " f æ ¼s l \ & h ½ + Ë . Ä »o $ 3 F g ^ H ] j ~ ½ ÓZ O s ç ß ¼ # # ª ô Ç " é ¶ è\ ¦ '
l ¼ # Ù ¼ Ð, ê ø Íò ø Í7 á ¤ " é ¶ ès : r` ¦ s 6 x # $ 3 F g : £ ¤$ í ` ¦ > h l \ 6 x s . : r ½ ¨\ " f Nd
2O
3' ) a Gadolinium-Borate Ä »o $ 3 F g ^ \ ¦ 6 x % i Ü ¼ 9, z ´+ « >\ 6 x ) a Ä »o $ 3 F g ^ H (55-x)B
2O
3:25Gd
2O
3:10SiO
2:10CaO:xNd
2O
3(Nd
2O
3' 0 l x ¸: 0.05 ∼ 2.50 mol%)_ ¸$ í q \ ¦
255
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∗
