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Worldwide network of in-situ TEM/ion accelerator facilities

全球原位 TEM/离子加速器设施网络

基本信息

批准号：
EP/F012853/1
负责人：
Stephen Eastwood Donnelly
金额：
$ 4.95万
依托单位：
University of Salford
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2007
资助国家：
英国
起止时间：
2007 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FF012853%2F1
关键词：
Worldwide network situ TEM ion

项目摘要

The focus of this proposal is to establish a formal, worldwide network of in-situ TEM/ion accelerator facilities (TEMIAFs) in order to attempt to use this small but important global resource in a much more effective manner than hitherto. The novel focus of the proposal is that the intention is to form a network involving the early-stage researchers associated with each facility rather than the senior staff. There are 8 such (known) facilities worldwide. The initial establishment of the network will be via visits by the Salford PI and PDRA to the other TEMIAFs to make contact with the early-stage researchers and to gather information regrading the capabilities of each facility. Note that the PI is involved in the visits in order to facilitate the initial contacts partially through his own contacts with senior TEMIAF staff.These facilities enable specimens of a variety of materials to be irradiated with energetic ions whilst simultaneously imaging in a transmission electron microscope. This approach can give remarkable insights into fundamental aspects of radiation damage in that dynamic processes are observed and recorded as they occur. In-situ studies also offer a very significant efficiency gain in that one hour of video-recorded irradiation experiment may be equivalent, literally, to weeks of ex-situ experiments in which specimens are transferred repeatedly between implanter and microscope. Such studies also make it possible to carry out experiments in which specimens are irradiated and analysed by TEM at temperatures other than room temperature. This is generally difficult or impossible where ion irradiation and microscopy take place sequentially. Studies of this type make important contributions to areas such as radiation damage in nuclear reactor materials (fission and fusion), semiconductor processing and surface engineering (using ion beams or plasmas). In the nuclear materials area, experiments on these facilities provide important data for researchers carrying out theoretical modelling studies.Currently, the individual facilities (which employ a variety of types of microscope and implanter) are operated entirely independently -- undoubtedly sometimes resulting in a mismatch between the characteristics of the facility and those required by a particular experiment. This proposal seeks to set up a network of early-stage resaerchers and a central website in order to optimise (globally) the use of such facilities and to seek further opportunities for funding to enable mobility of researchers amongst the member laboratories and explore the possibility of setting up a virtual collaboratory that would permit real-time collaborative experiments using the internet.

这项建议的重点是建立一个正式的、全球性的原位瞬变电磁法/离子加速器设施网络，以便尝试以比迄今更有效的方式利用这一小而重要的全球资源。该提案的新颖之处在于，其目的是形成一个网络，包括与每个设施相关的早期研究人员，而不是高级工作人员。全世界有8个这样的（已知的）设施。网络的初步建立将由索尔福德PI和PDRA访问其他TEMIAFs，与早期研究人员联系，并收集有关每个设施能力的信息。请注意，PI参与访问是为了促进初步接触，部分是通过他自己与TEMIAF高级工作人员的接触。这些设备使各种材料的标本能够在透射电子显微镜下用高能离子照射的同时进行成像。这种方法可以对辐射损伤的基本方面提供显著的见解，因为动态过程被观察和记录。现场研究还提供了非常显著的效率增益，因为一小时的录像照射实验可能相当于数周的离地实验，在这种实验中，标本在植入器和显微镜之间反复转移。这种研究也使得在室温以外的温度下进行样品辐照和透射电镜分析的实验成为可能。这通常是困难或不可能的，在离子辐照和显微镜依次进行。这类研究对核反应堆材料的辐射损伤（裂变和聚变）、半导体加工和表面工程（使用离子束或等离子体）等领域做出了重要贡献。在核材料领域，这些设施上的实验为研究人员进行理论模拟研究提供了重要数据。目前，单个设备（使用各种类型的显微镜和植入器）是完全独立运行的——毫无疑问，有时会导致设备的特性与特定实验所需的特性不匹配。该提案旨在建立一个早期研究人员网络和一个中心网站，以优化（全球）使用这些设施，并寻求进一步的资助机会，使研究人员能够在成员实验室之间流动，并探索建立一个虚拟合作实验室的可能性，该实验室将允许使用互联网进行实时协作实验。