Tb-doped Aluminosilicate Oxyfluoride Scintillating Glass and Glass-ceramic
作者： Zhengda Pan , K. James , Y. Cui , A. Burger , Nerine Cherepy
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摘要: Two aluminosilicate oxyfluoride glass systems, a lead-cadmium-aluminosilicate and lithium-lanthanum-aluminosilicate oxyfluoride, doped with different TbF 3 concentrations, have been fabricated investigated. By appropriate heat treatment of the as-prepared glasses above, transparent glass-ceramics (TGC) were obtained. The contain Tb:Pb(Cd)F 2 or Tb:LaF nano-crystals in glass-matrix. Differential scanning calorimetry, Raman scattering, luminescence under both UV β-particle excitation investigated on glass-ceramics. It has found that terbium-doped exhibits good excited β-induced luminescence. yield increases for glass-ceramic compared to glass. including LaF glass-matrix is beneficial higher Tb-doping concentration high light yield. comparable Schott IQI-301 product. However, detrimental performance. lead cations may create non-bridging oxygen defects, which are strong source charge traps, correlated “Boson” peak.
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