首页|Fabrication and investigation of the effects of various gadolinium compounds on Ce3+-activated phosphate glasses for scintillation applications

Fabrication and investigation of the effects of various gadolinium compounds on Ce3+-activated phosphate glasses for scintillation applications

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© 2022 Elsevier GmbHCe3+-activated phosphate-based glasses were fabricated for scintillation purposes following melt-quenching technique. Chemical compositions of the glasses were designed in mol. % ratio with formula (62P2O5:20Li2CO3:10X:5Al2O3:3CeBr3 where X[dbnd]Gd2O3/GdF3/GdCl3/GdBr3/GdI3). The amorphous structure of the glasses was verified by the powder X-ray diffraction measurements. Fourier-transform infrared (FTIR) measurements were carried out to study the structural properties of the fabricated glass samples. X-ray-induced luminescence and photoluminescence (PL) spectra were used to investigate the luminescence properties of the glasses. A broad PL excitation band was found for all prepared glasses that refers to Gd3+ and Ce3+ characteristic transitions. GdI3 containing glass sample provided the optimum emission under X-ray and UV (308 nm) excitations peaking at 347 and 341 nm, respectively. The scintillation property of the GdI3 containing glass was studied under 5.5 MeV α-particle from 241Am radiation source and a clear alpha peak was observed with energy resolution of 35.3%. The shortest decay component of the glass sample was observed to be 27.9 ns, 30.7 ns and 29.12 ns under the α-particles, γ-ray, and 266 nm pulsed laser excitations, respectively. In conclusion, the GdI3 prepared glass sample can be used for α -particles detection.

Decay timeFTIRGadoliniumLuminescencePhosphate glassScintillation

Ntarisa A.V.、Saha S.、Quang N.D.、Kim H.J.、Aryal P.、Wantana N.、Kaewkhao J.、Pandey I.R.、Kothan S.

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Department of Physics Kyungpook National University

Center of Excellence in Glass Technology and Materials Science (CEGM) Nakhon Pathom Rajabhat University

Department of Chemistry Northwestern University

Center of Radiation Research and Medical Imaging Department of Radiologic Technology Faculty of Associated Medical Sciences Chiang Mai University

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2022

10.1016/j.ijleo.2022.169303

Optik

Optik

EISCI
ISSN：0030-4026
年,卷(期)：2022.262
  • 42