X-ray-induced Scintillation via Energy Transfer from Gd3+ to Ce3+ in Silicate Glasses Composed of Heavy Elements.

Authors :: Daiki Shiratori
Daisuke Nakauchi
Takumi Kato
Noriaki Kawaguchi
Takayuki Yanagida
Source :: Sensors & Materials; 4/20/2020, Vol. 32 Issue 4, Part 2, p1365-1372, 8p
Publication Year :: 2020
Abstract: Photoluminescence and X-ray-induced scintillation properties of xCe:20BaO-15Gd<subscript>2</subscript>O<subscript>3</subscript>-65SiO<subscript>2</subscript> (x = 0, 0.01, 0.05, 0.1, 0.5) glasses were investigated. The glass samples emitted light via energy transfer from Gd<superscript>3+</superscript> in the host to Ce<superscript>3+</superscript>. The <superscript>6</superscript>P<subscript>7/2</subscript>-<superscript>8</superscript>S<subscript>7/2</subscript> relaxation of Gd<superscript>3+</superscript> was confirmed notably in the undoped glass sample, but the emission due to Gd<superscript>3+</superscript> disappeared upon the addition of Ce. Furthermore, the decay time constant of Gd<superscript>3+</superscript> decreased with increasing Ce concentration. [ABSTRACT FROM AUTHOR]

Subjects :: HEAVY elements
ENERGY transfer
DECAY constants
GLASS
SILICATES
SCINTILLATORS

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