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    • 1. 发明授权
    • Halide-based scintillator nanomaterial
    • 卤化物闪烁体纳米材料
    • US08431041B2
    • 2013-04-30
    • US12386503
    • 2009-04-17
    • Marek A. OsinskiNathan J. WithersBrian A. AkinsGennady A. SmolyakovKrishnaprasad Sankar
    • Marek A. OsinskiNathan J. WithersBrian A. AkinsGennady A. SmolyakovKrishnaprasad Sankar
    • C09K11/08C09K11/61
    • C09K11/7773C09K11/664C09K11/7772G01T1/20G01T1/202Y10T428/256Y10T428/2982
    • Scintillator material comprising nanoparticles (nanocrystals) comprising lead (Pb), iodine (I), and optionally one or both of oxygen (O) and hydrogen (H) wherein the nanoparticles exhibit room-temperature scintillation under gamma irradiation. The scintillator nanoparticles can comprise Pb3O2I2. The scintillator nanoparticles can comprise PbIOH in generally equiatomic proportions or non-equiatomic variants thereof that exhibit scintillation under gamma irradiation. The scintillator nanoparticles have a particle dimension in the range of about 5 to about 100 nm. Microparticles (microcrystals) also are provided comprising lead (Pb), iodine (I), and optionally one or both of oxygen (O) and hydrogen (H) grown in a nanoparticle colloidal solution over time to a particle dimension greater than 0.1 μm, such as about 2 microns. A heterogeneous scintillator material is provided comprising core/shell nanoparticles having a highly hygroscopic or deliquescent halide-based core activated with trivalent Ln3+ or divalent Ln2+ lanthanide ions (Ln=La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) and a stable non-hygroscopic shell thereon. The heterogeneous nanoparticles can comprise highly hygroscopic lanthanide halide (LaBr3, LuI3) cores protected with stable non-hygroscopic LaF3 shells. The heterogeneous nanoparticles can comprise deliquescent alkaline earth halide (SrI2, BaI2) cores protected with stable non-hygroscopic (SrF2, BaF2) shells.
    • 包含包含铅(Pb),碘(I)和任选的氧(O)和氢(H)中的一种或两者的纳米颗粒(纳米晶体)的闪烁体材料,其中纳米颗粒在γ照射下呈现室温闪烁。 闪烁体纳米颗粒可以包含Pb 3 O 2 I 2。 闪烁体纳米颗粒可以包含通常等原子比例的PbIOH或在γ照射下显示闪烁的非等摩尔变体。 闪烁体纳米颗粒具有在约5至约100nm范围内的粒子尺寸。 还提供包含铅(Pb),碘(I)以及任选的在纳米颗粒胶体溶液中生长的氧(O)和氢(H)中的一种或两种随时间变化至大于0.1μm的颗粒尺寸的微颗粒(微晶) 例如约2微米。 提供了一种异质闪烁体材料,其包括具有由三价Ln3 +或二价Ln2 +镧系元素离子(Ln = La,Ce,Pr,Nd,Pm,Sm,Eu,Gd,Tb)活化的高吸湿性或潮解性卤化物基核心的核/壳纳米颗粒 ,Dy,Ho,Er,Tm,Yb,Lu)和稳定的非吸湿性外壳。 非均相纳米颗粒可以包含用稳定的非吸湿性LaF 3壳保护的高吸湿性镧系元素卤化物(LaBr 3,LuI 3)。 非均相纳米颗粒可以包含用稳定的非吸湿性(SrF 2,BaF 2)壳保护的潮解性碱土卤​​化物(SrI 2,BaI 2)。
    • 4. 发明申请
    • Halide-based scintillator nanomaterial
    • 卤化物闪烁体纳米材料
    • US20100001209A1
    • 2010-01-07
    • US12386503
    • 2009-04-17
    • Marek A. OsinskiNathan J. WithersBrian A. AkinsGennady A. SmolyakovKrishnaprasad Sankar
    • Marek A. OsinskiNathan J. WithersBrian A. AkinsGennady A. SmolyakovKrishnaprasad Sankar
    • G01J1/58C09K11/61
    • C09K11/7773C09K11/664C09K11/7772G01T1/20G01T1/202Y10T428/256Y10T428/2982
    • Scintillator material comprising nanoparticles (nanocrystals) comprising lead (Pb), iodine (I), and optionally one or both of oxygen (O) and hydrogen (H) wherein the nanoparticles exhibit room-temperature scintillation under gamma irradiation. The scintillator nanoparticles can comprise Pb3O2I2. The scintillator nanoparticles can comprise PbIOH in generally equiatomic proportions or non-equiatomic variants thereof that exhibit scintillation under gamma irradiation. The scintillator nanoparticles have a particle dimension in the range of about 5 to about 100 nm. Microparticles (microcrystals) also are provided comprising lead (Pb), iodine (I), and optionally one or both of oxygen (O) and hydrogen (H) grown in a nanoparticle colloidal solution over time to a particle dimension greater than 0.1 μm, such as about 2 microns. A heterogeneous scintillator material is provided comprising core/shell nanoparticles having a highly hygroscopic or deliquescent halide-based core activated with trivalent Ln3+ or divalent Ln2+ lanthanide ions (Ln=La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) and a stable non-hygroscopic shell thereon. The heterogeneous nanoparticles can comprise highly hygroscopic lanthanide halide (LaBr3, LuI3) cores protected with stable non-hygroscopic LaF3 shells. The heterogeneous nanoparticles can comprise deliquescent alkaline earth halide (SrI2, BaI2) cores protected with stable non-hygroscopic (SrF2, BaF2) shells.
    • 包含包含铅(Pb),碘(I)和任选的氧(O)和氢(H)中的一种或两者的纳米颗粒(纳米晶体)的闪烁体材料,其中纳米颗粒在γ照射下呈现室温闪烁。 闪烁体纳米颗粒可以包含Pb 3 O 2 I 2。 闪烁体纳米颗粒可以包含通常等原子比例的PbIOH或在γ照射下显示闪烁的非等摩尔变体。 闪烁体纳米颗粒具有在约5至约100nm范围内的粒子尺寸。 还提供包含铅(Pb),碘(I)以及任选的在纳米颗粒胶体溶液中生长的氧(O)和氢(H)中的一种或两种随时间变化至大于0.1μm的颗粒尺寸的微颗粒(微晶) 例如约2微米。 提供了一种异质闪烁体材料,其包括具有由三价Ln3 +或二价Ln2 +镧系元素离子(Ln = La,Ce,Pr,Nd,Pm,Sm,Eu,Gd,Tb)活化的高吸湿性或潮解性卤化物基核心的核/壳纳米颗粒 ,Dy,Ho,Er,Tm,Yb,Lu)和稳定的非吸湿性外壳。 非均相纳米颗粒可以包含用稳定的非吸湿性LaF 3壳保护的高吸湿性镧系元素卤化物(LaBr 3,LuI 3)。 非均相纳米颗粒可以包含用稳定的非吸湿性(SrF 2,BaF 2)壳保护的潮解性碱土卤​​化物(SrI 2,BaI 2)。