Bombardment Induced Surface Chemistry in Energetic Particle Mass Spectrometries

高能粒子质谱中的轰击诱导表面化学

• 批准号: 9013005
• 负责人: Luke Hanley
• 金额: $ 3.64万
• 依托单位: University of Illinois at Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-01 至 1992-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9013005&HistoricalAwards=false
• 关键词: Bombardment; Induced; Surface; Chemistry; Energetic

This award is made as the starter grant increment of Dr. Hanley's Postdoctoral Fellowship in Chemistry Award in support of his research at the University of Illinois at Chicago. The thrust of Dr. Hanley's research is the use of sophisticated surface spectroscopies to examine the energetic particle-surface interaction. The experiments will investigate chemical reactions of molecules on surfaces induced by energetic ion and atom bombardment. Vibrational and other non-destructive surface spectroscopies will be used to correlate bombardment induced surface reactions with molecular mass spectra observed by secondary ion, secondary neutral and fast bombardment mass spectrometry. These experiments will be performed on models of adsorbate-covered surfaces, organic solids, and multicomponent surfaces formed by vapor deposition on single crystal surfaces under ultrahigh vacuum conditions. The role of projectile charge state and chemistry will also be examined. These experiments will attempt to determine the basic physical processes leading to ejection of secondary molecular ions and neutrals ultimately leading to an improved interpretation of mass spectra of real systems typically probed by energetic particle bombardment.

该奖项是Hanley博士化学博士后奖学金的启动资助增量，以支持他在芝加哥伊利诺伊大学的研究。汉利博士研究的重点是使用复杂的表面光谱学来检查高能粒子-表面相互作用。实验将研究高能离子和原子轰击引起的表面分子的化学反应。振动和其他非破坏性表面光谱将用于将轰击诱发的表面反应与由二次离子、二次中性和快速轰击质谱观察到的分子质谱相关联。这些实验将在吸附物覆盖的表面、有机固体和在超高真空条件下由单晶表面气相沉积形成的多组分表面的模型上进行。弹丸电荷状态和化学的作用也将被研究。这些实验将试图确定导致二级分子离子和中性离子喷射的基本物理过程，最终导致对实际系统的质谱的改进解释，通常由高能粒子轰击探测。