Element Specific Smart Media for Fast, Low Cost Radionuclide Analyses

用于快速、低成本放射性核素分析的元素特定智能介质

• 批准号: 1905588
• 金额: --
• 依托单位: CARDIFF UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1905588
• 关键词: Element; Specific; Smart; Media; Fast

Radioactive analyses are currently very challenging for mixtures and/or unknowns. Lowered analysis time, and therefore cost, of radioactive samples is extremely important, as demonstrated by Fukushima effluent sampling. A step-change technological advance in this area of analysis is urgently required. The technological quality of a system applicable to a suite of radioactive analytes has major relevance since these are key radionuclide targets for power plants entering decommissioning.Our aim is to develop a fast and low cost approach to analysing low level waste (LLW) samples containing a mixture of radionuclide contaminants and exploiting existing scintillation counting infrastructure. We will develop novel scintillants that selectively target radionuclides in a mobile LLW aqueous phase. The approach will require minimal work-up and manipulation of aqueous LLW, and dramatically reduce the volumes of organic solvent typically used in commercial scintillant cocktails, thus reducing the cost and time of analysis, and overall environmental impact. This methodology will also allow parallel, rapid analyses of different radionuclide targets by using a mixture of different scintillant beads for each targeted analyte.The benefit of faster analyses for the wider suite of radionuclides could therefore be realised not only in the area of nuclear remediation, but also in accident scenarios, contingency, resilience and homeland security. The project has arisen from an unmet and urgent need within the (global) nuclear industry for rapid and selective analyses, thus creating the pathway to impact through our immediate partnership with NDA, NNL and our wider engagement with the international nuclear industry and its stakeholders.

目前，对混合物和/或未知物进行放射性分析非常具有挑战性。正如福岛污水取样所证明的那样，减少放射性样品的分析时间，从而降低其成本是极其重要的。迫切需要在这一分析领域逐步取得技术进步。适用于一套放射性分析物的系统的技术质量具有重要的相关性，因为这些是关键的放射性核素的目标电厂进入decomposing. We的目的是开发一种快速，低成本的方法来分析低放废物（LLW）样品含有混合物的放射性核素污染物和利用现有的闪烁计数基础设施。我们将开发新的澄清剂，选择性地针对放射性核素在移动的低放废液水相。该方法将需要对含水LLW进行最少的后处理和操作，并显著减少通常用于商业澄清剂混合物中的有机溶剂的体积，从而降低分析的成本和时间以及总体环境影响。这种方法还将允许通过使用针对每种目标分析物的不同澄清剂珠的混合物来对不同的放射性核素目标进行平行、快速的分析。因此，不仅在核补救领域，而且在事故情景、应急、复原力和国土安全领域，都可以实现对更广泛的放射性核素进行更快分析的好处。该项目源于（全球）核工业对快速和选择性分析的未满足和迫切需求，从而通过我们与NDA，NNL的直接合作以及我们与国际核工业及其利益相关者的更广泛参与，创造了产生影响的途径。