Core Level Excitation and Relaxation in Molecules

分子的核心水平激发和弛豫

• 批准号: 8921729
• 负责人: David Hanson
• 金额: $ 46.3万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-01 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8921729&HistoricalAwards=false
• 关键词: Core; Level; Excitation; Relaxation; Molecules

The Experimental Physical Chemistry Program supports Professor Hanson in an experimental investigation of the various decay channels following soft x-ray excitation of atomic inner shell vacancies in simple gaseous molecules. Basic information is being obtained on the competing energy dissipation processes occuring in these highly excited molecules, especially correlations between electronic decay channels and the resulting chemical transformations. The results may provide guidance to important considerations in the design of x-ray lithography equipment. Tunable and monochromatic soft x-ray radiation from the National Synchrotron Light Source at Brookhaven is used to excite gas phase molecules in the region near the K edge of carbon, nitrogen, oxygen, or fluorine or the L edge of silicon, sulfur, phosphorus, or chlorine. Following this very selective internal excitation, information is extracted on the various decay processes using electron spectroscopy, mass spectrometry, and fluorescence techniques, both singly and in coincidence.

实验物理化学计划支持教授 汉森在实验研究各种衰变 原子内壳层软X射线激发后的通道 简单气体分子中的空位 基本信息 在竞争能量耗散过程上获得 发生在这些高度兴奋的分子中， 电子衰变通道和 导致化学转化。 结果可能提供 X射线设计中重要考虑的指南 光刻设备 可调谐和单色软X射线辐射的 布鲁克海文的国家同步加速器光源用于 激发气相分子的K边缘附近的区域， 碳、氮、氧或氟或硅的L边缘， 硫磷或氯 在这个非常有选择性的 内部激励，信息被提取的各种 衰变过程使用电子光谱，质谱， 和荧光技术，无论是单独的还是同时发生的。