U.S.-Argentina Cooperative Research: Theoretical Models forRadiation-Enhanced Diffusion During Ion Implantation

该奖项支持弗吉尼亚理工学院的Diana Farkas和布宜诺斯艾利斯原子能委员会的E.J. Savino在凝聚态理论方面的合作研究。理论模型将发展的输运机制，发生在离子注入合金化和离子束混合。合作开始集中于现象学模型，现在建议研究辐照期间发生的特定传输机制。从蒙特卡罗模拟碰撞混合开始，包括动态成分变化，研究将继续研究由于点缺陷在注入过程中的偏析效应，并研究离子束在层状结构中的混合。这种合作是富有成效的，在一些优秀的期刊上发表了几篇论文。两位私家侦探。在辐射效应和杂质缺陷相互作用的理论分析方面是公认的专家。该研究领域在陶瓷、半导体、金属和合金等领域有着广泛的应用。

This award supports cooperative research in condensed matter theory to be carried out by Diana Farkas of the Virginia Polytechnic Institute and E.J. Savino of the Atomic Energy Commission in Buenos Aires. Theoretical models will be developed for transport mechanisms that occur during ion implantation alloying and ion beam mixing. The collaboration began with concentrating on phenomenological models and it is now proposed to study the particular transport mechanisms that occur during irradiation. Starting with Monte Carlo simulation of collisional mixing, including dynamic compositional changes, the study will proceed to look at segregation effects during implantation due to point defects and investigate ion beam mixing in layered structures. The collaboration has been productive, resulting in several papers in good journals. Both the P.I.'s are recognized as experts in theoretical analysis of radiation effects and impurity defect interactions. The research area has wide application in ceramics and semiconductors as well as in metals and alloys.