Scintillation properties of Rb2LiGdBr6: Ce³⁺ single crystals

机译：Rb2LiGdBr6：Ce ^{3 + 单晶的闪烁特性}

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Scintillation properties of a new cerium doped Rb2LiGdBr6 (RLGC) single crystal belongs to the elpasolite family is reported. This material is grown by the vertical Bridgman technique with 1% and 5% Ce³⁺-concentration (mole %). Under X-ray excitation, two overlapped emission peaks followed by broad band is observed between 350 to 680 nm wavelengths for 1% Ce sample. At 662 keV γ-rays RLGB: 5% Ce³⁺ crystal shows an energy resolution and light yield of 5.5% (FWHM) and ∼ 25,500±2,600 ph/MeV, respectively. Under γ-ray excitation, RLGB: Ce³⁺ crystals showed four exponential decay time components. Improvement in the scintillation properties is expected with higher the higher Ce-doping. It is expected that this scintillator could be used as a thermal neutron detector due to the presence of Li and Gd ions in the host lattice. Like other inorganic halide scintillators this material is also very hygroscopic.

机译：报道了一种新的铈掺杂的Rb2LiGdBr6（RLGC）单晶的闪烁特性，该单晶属于锂辉石家族。该材料通过垂直Bridgman技术以1％和5％的Ce ^{3 + 浓度（摩尔％）生长。在X射线激发下，对于1％Ce样品，在350至680 nm波长之间观察到两个重叠的发射峰，随后出现宽带。在662 keVγ射线下，RLGB：5％Ce ^{3 + 晶体的能量分辨率和光产率分别为5.5％（FWHM）和〜25,500±2,600 ph / MeV。在γ射线激发下，RLGB：Ce ^{3 + 晶体呈现出四个指数衰减时间。随着更高的Ce掺杂，期望闪烁特性的改善。由于主体晶格中存在Li和Gd离子，预计该闪烁体可以用作热中子探测器。像其他无机卤化物闪烁体一样，这种材料也非常吸湿。}}}

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《2013 IEEE Nuclear Science Symposium and Medical Imaging Conference》|2013年|1-3|共3页
会议地点 Seoul(KR)
作者
Rooh Gul; Kim H.J.; Park H.; Kim Sunghwan;
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Department of Physics, Abdul Wali Khan University, Mardan 23200, Pakistanc;

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Scintillation properties of Rb2LiGdBr6: Ce3+ single crystals

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Scintillation properties of Rb2LiGdBr6: Ce³⁺ single crystals