Radiation-induced luminescence properties of Sn-doped hafnium aluminosilicate glass ceramics prepared by using a xenon image furnace

Abstract

In this study, Sn-doped 10HfO2-10Al2O3-80SiO2 glasses were prepared using a xenon imaging furnace and their physical, optical, and scintillation properties were investigated. At the composition ratio, the specimens did not completely vitrify, and they were crystallized glasses that contained nanocrystals of c-HfO2. Raman spectra show the absorption bands due to Si–O–Hf bonds, and the band clearly indicated an effective molecular mingling of SiO2 and HfO2 components in the glass. Moreover, the energy dispersive X-ray spectroscopy maps suggested that the elemental distribution of this glass specimen is heterogeneous. In terms of optical properties of the glass, all of the specimens showed emission due to Sn2+, and their tendency to increase PL QY with increasing Sn concentration. The estimated luminescence from pulse height spectrum measurements under alpha irradiation was ~2500 ph/MeV, approximately 35% of the GS-20 glass scintillator counterpart.

Photoluminescence and Radioluminescence Properties of Y3Al5O12 Doped with 3d-Transition Metal Ions

“…Although many scintillators have been studied in the last few decades, (4)(5)(6)(7) fundamental studies on novel scintillators still continue to achieve better performance than ever before. There have been reports on various types of scintillator, such as single crystals, (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21) nanocrystals, (22) crystalline films, (23) ceramics, (24)(25)(26)(27) glasses, (28)(29)(30)(31)(32)(33)(34)(35)(36)(37) plastics, (38) and organic-inorganic hybrid materials, (39)(40)(41)(42) even in the last few years. In terms of the luminescent center, specific dopants such as Ce, Eu, and Tl have been mainly used for commercial scintillators; however, other dopants are also of our interest.…”

Tm Concentration Dependence on Scintillation Properties of Y3Al5O12 Garnet Single Crystals

“…Therefore, the performance of scintillators strongly affects that of radiation detectors. Various scintillators, such as films, (6) ceramics, (7)(8)(9)(10)(11)(12) glasses, (13)(14)(15)(16)(17)(18)(19)(20)(21)(22) single crystals, (23)(24)(25)(26)(27)(28)(29)(30)(31)(32) and nanoparticles, (33) have been investigated to date. Single crystal materials tend to show excellent properties and are widely used as scintillators.…”