Surface Chemistry Studies with Ion Beams and Lasers

Winograd/Pennsylvania State该研究项目由分析和表面化学计划支持，解决了高能离子和光子与固体表面相互作用的基本问题。 宾夕法尼亚州立大学的首席研究员和他的小组正在研究团簇离子束与有机薄膜和冰基质中的生物样品的相互作用。 结合状态分辨实验测量和经典的轨道计算模型，提供了离子与固体表面碰撞时能量在固体表面沉积的信息。 分子特异性成像的样品表面是这项工作的目标。 这些研究的结果将影响分析质谱，聚变反应堆设计，生物技术和电子材料的反应离子蚀刻。 利用高能原子和团簇离子束进行表面分析是本项目支持的研究重点。 在分析和表面化学计划的资助下，Winograd教授和他的同事正在研究离子-固体表面相互作用的基本方面。 这项工作的特别重点是在冰基质中的生物样品与高能团簇离子的相互作用，与发展的生物材料的分子比表面分析的目标。

ABSTRACTCHE-0244960Winograd/Pennsylvania StateThis research project, supported by the Analytical and Surface Chemistry Program, addresses fundamental aspects of the interaction of energetic ions and photons with solid surfaces. The Principal Investigator and his group at the Pennsylvania State University are examining the interactions of cluster ion beams with organic thin films and with biological samples in an ice matrix. A combination of state resolved experimental measurement with classical trajectory calculational modeling, provides information about the deposition of energy in the solid surface upon ion-surface collision. Molecule-specific imaging of the sample surface is the goal of this work. Results from these studies will impact analytical mass spectrometry, fusion reactor design, biotechnology, and reactive ion etching of electronic materials. Surface analysis using high energy atomic and cluster ion beams is the focus of the research supported in this project. With the funding of the Analytical and Surface Chemistry Program, Professor Winograd and his coworkers are examining the fundamental aspects of ion-solid surface interactions. The particular focus of this work is on the interaction of energetic cluster ions with biological samples in an ice matrix, with the goal of developing molecule specific surface analysis of biological materials.