论文标题
高级Znwo $ _4 $ Crystal闪烁体的光学，发光和闪烁特性
Optical, luminescence, and scintillation properties of advanced ZnWO$_4$ crystal scintillators
论文作者
论文摘要
锌钨（Znwo $ _4 $）水晶闪光灯正在有希望的检测材料，用于寻找双β衰减，暗物质和调查稀有α衰变的实验。进行了扩展的研发，以开发高级质量Znwo $ _4 $ Crystal闪烁体。研发计划包括选择初始材料，化合物化学计量的变化，单一结晶的应用以及晶体boules的退火。测量了产生的boules的光学传输，并研究了从85 K到室温的温度区域中X射线激发下的发光（测量了热刺激的发光至350 K）。用γ源测量了能量分辨率和相对闪烁脉冲振幅，这些伽马源表明，来自深纯化的锌和钨氧化物产生的样品产生的样品的高闪烁特性，并具有石学计量成分，并在空气大气中退火。
Zinc tungstate (ZnWO$_4$) crystal scintillators are promising detection material for the experiments searching for double beta decay, dark matter, and investigating rare alpha decays. An extended R&D was performed to develop advanced quality ZnWO$_4$ crystal scintillators. The R&D programme included the selection of the initial materials, the variation of the compound stoichiometry, the application of single and double crystallization, and the annealing of the crystal boules. The optical transmittance of the produced boules was measured, and the luminescence under X-ray excitation in the temperature region from 85 K to room temperature was studied (thermally stimulated luminescence was measured till 350 K). The energy resolution and the relative scintillation pulse amplitude were measured with gamma-sources demonstrating high scintillation properties of the samples produced by single crystallization from deeply purified zinc and tungsten oxides, with stoichiometric composition, annealed in air atmosphere.
