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首页> 外文期刊>Radiation measurements >Composite thermoluminescent detectors based on the Ce3+ doped LuAG/YAG and YAG/LuAG epitaxial structures
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Composite thermoluminescent detectors based on the Ce3+ doped LuAG/YAG and YAG/LuAG epitaxial structures

机译：基于CE3 +掺杂LUAG / YAG和YAG / LUAG外延结构的复合热辐射探测器

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摘要

This work presents the first results on creation of composite thermoluminescent (TL) detectors based on the film-crystal epitaxial structures of garnet compounds for the simultaneous registration of the mixed ionization fluxes containing alpha- and beta-particles. Two types of TL detectors containing combinations of the single crystalline films (SCFs) and single crystal (SC) substrates of Ce3+ doped Y3Al5O12 (YAG) and Lu3Al5O12 (LuAG) garnets, were considered. The LuAG:Ce SCF/YAG:Ce SC and YAG:Ce SCF/LuAG:Ce SC epitaxial structures were grown by the liquid phase epitaxy (LPE) method from (overcooled) supercooled? melt-solution based on the PbO-B2O3 flux and their thermoluminescent properties were examined under excitation by alpha- and beta-particles of (242)AM and Sr-90 -Y-90 sources. The registration of alpha- and beta-particles was performed using differences between TL glow curves of SCFs and substrates. The first results on separation of TL signals from SCF and SC components for LuAG:Ce SCF/YAG:Ce SC and YAG:Ce SCF/LuAG:Ce SC epitaxial structures under alpha- and beta-excitation are encouraging. This enables consideration of these epitaxial structures as prototypes at the next steps of producing the composite TL detectors based on different oxide materials using the LPE growth method.
机译：本作品呈现了基于石榴石化合物的膜晶体外延结构的复合热致发光（TL）检测器的第一种结果，用于同时登记含有α-和β-颗粒的混合电离通量。考虑了两种类型的CE3 +掺杂Y3AL5O12（YAG）和Lu3Al5O12（Luag5012（Luag）Garnet的单晶膜（SCFS）和单晶（SC）和单晶（SC）衬底的组合的TL探测器。 Luag：Ce scf / yag：ce sc和yag：ce scf / luag：ce sc外延结构由液相外延（LPE）方法从（过冷）过冷的情况下生长？通过（242）AM和SR-90-IM-90源的α和β-颗粒，在激发中检查基于PbO-B2O3助焊剂的熔融溶液及其热敏发光性能。使用SCFS和基材的TL发光曲线之间的差异进行α-和β-颗粒的登记。第一种结果是SCF和SC组件分离的第一种结果，用于Luag：Ce SCF / YAG：Ce SC和YAG：CE SCF / Luag：α和β-激发下的CE SC外延结构是令人鼓舞的。这使得能够考虑这些外延结构作为使用LPE生长方法基于不同氧化物材料制备复合TL探测器的下一步骤的原型。

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