Water-Binding Solid Scintillators: Synthesis, Emission Properties, and Tests in3H and14C Counting
作者:Hans-Joachim Meyer、Thomas Wolff
DOI:10.1002/1521-3765(20000804)6:15<2809::aid-chem2809>3.0.co;2-m
日期:2000.8.4
Spectral and time-resolved fluorescence properties as well as relative fluorescence quantum yields of carbodiimide derivatives of 2.5-diphenyloxazole (PPO) (prepared by H2S elimination from the corresponding thioureas), of some intermediates in the preparation, and of several other PPO derivatives were investigated in solution and in the solid state to test their suitability as solid scintillators
研究了2.5-二苯基恶唑(PPO)(通过从相应的硫脲中脱除H2S制备)的碳二亚胺衍生物,制备中的某些中间体以及其他几种PPO衍生物的光谱和时间分辨荧光性质以及相对荧光量子产率在溶液中和固态下测试其作为固态闪烁体的适用性。碳二亚胺在酸性条件下与水缓慢反应,生成脲。在3H和14C计数中,将这些系统与其他PPO衍生物与硫酸钠作为干燥剂的固体混合物进行了比较,将其作为化学结合水的固体闪烁体。化学和吸收性水结合闪烁体都证明能够计算3H和14C衰减,