Nuclear Fission Research, Science and Technology DTC (Nuclear FiRST)- Underpinning UK Energy and Defence Strategies

核裂变技术是英国能源和国防战略的重要组成部分。英国政府最近表示，它支持新一代核电站和继续独立的英国核威慑力量，同时，我们已经启动了一项长达数十年、耗资700亿英镑的计划，以清理英国遗留的核废料。所有这些活动都涉及危险的放射性物质，因此很明显，在未来的许多年里，英国将需要在放射性核素的物理、化学、材料科学和环境行为方面的专业知识。与此同时，技术人才严重短缺，2002年至2017年期间，对毕业生招聘的需求估计为每年1000人。如果我们要加工和分离放射性核素，将其制造成材料，了解这些材料的使用性能，处理加工产生的废物，修复受污染的场址和预测核废料处置中放射性核素的环境流动性，就需要这种专门知识。该博士培训中心将解决三个关键的科学挑战：1。1 .战略核材料-在使用、储存和处置环境中的核材料，主要是铀和钚的行为；放射性废物——现有各种废物的性质及其转化为安全废物形式的技术；3. 环境中的放射性核素-放射性废物转化为稳定的废物形式、贮存环境中的行为、释放的速率和形式、环境运输和放射性影响。此外，我们确定了一个跨领域的主题，它从根本上影响所有三个主题：辐射效应-由于辐照而引起的行为和特性的改变，从物理特性的变化到化学效应，以及人体暴露中重要的随机和非随机生物效应。为了应对这些科学挑战，我们将在两个关键领域培养基础技能：放射性元素化学。关键放射性元素特性；固体、水溶液和非水溶液中物理化学形态（形态）的定义；热力学;动力学;光谱法;配合物的表征；氧化还原化学;水解6。材料科学。与核科学相关的材料的行为，包括金属、陶瓷（包括玻璃）和聚合物；材料表面的放射性核素污染（和去污）；先进燃料、减缓剂和废物形式的材料降解的测量和建模。

Nuclear fission technology is an essential component of both UK energy resources and defence strategy. The UK Government has recently signalled its support both for a new generation of nuclear power stations and a continuing independent UK nuclear deterrent and, at the same time, we have started a decades-long, > 70 bn programme to clean up the UK's legacy nuclear wastes. All of these activities involve hazardous radioactive materials, so it is clear that the UK will need expertise in the physics, chemistry, materials science and environmental behaviour of radionuclides for many years to come. At the same time, there is an acute skills shortage, with demand for graduate recruits between 2002 and 2017 estimated at 1000 per year. This expertise will be needed if we are to process and separate radionuclides, fabricate them into materials, understand the in-service performance of such materials, treat wastes from processing, remediate contaminated sites and predict the environmental mobility of radionuclides in nuclear waste disposal. This Doctoral Training Centre will address three key scientific challenges:1. Strategic Nuclear Materials- behaviour of nuclear materials, principally uranium and plutonium in service, in storage and in the disposal environment;2. Radioactive Wastes - properties of the diverse range of wastes which exists, and technologies for their conversion into safe wasteforms; 3. Radionuclides in the Environment- conversion of radioactive wastes into stable wasteforms, behaviour in the repository environment, rates and forms of release, environmental transport and radiological impact. In addition, we identify a cross-cutting topic, which fundamentally influences all three themes:4. Radiation Effects- modification of behaviour and properties as result if irradiation, ranging from changes in physical properties to chemical effects, and stochastic and non-stochastic biological effects of importance in human exposure.To address these scientific challenges, we will develop underpinning skills in two key areas:5. Radioelement Chemistry. Characteristics of key radioelements; definition of physico-chemical form (speciation) in the solid state and in aqueous and non-aqueous solution; thermodynamics; kinetics; spectroscopy; characterisation of complexes; redox chemistry; hydrolysis 6. Materials Science. Behaviour of materials relevant to nuclear science including metallics, ceramics (including glasses) and polymers; radionuclide contamination (and decontamination) of materials surfaces; measurement and modelling of materials degradation of advanced fuels, moderators and wasteforms.