Core Level Excitation and Relaxation in Molecules

分子的核心水平激发和弛豫

• 批准号: 8703340
• 负责人: David Hanson
• 金额: $ 55.4万
• 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: 1987
• 资助国家: 美国
• 起止时间: 1987-06-01 至 1990-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8703340&HistoricalAwards=false
• 关键词: Core; Level; Excitation; Relaxation; Molecules

Dr. Hanson has recently initiated a program to investigate inner shell electron excitations of diatomic, triatomic, and small polyatomic molecules specifically chosen to enable the properties of different types of chemical bonds to be characterized. This program is one of the few in the world that is systemically studying such properties. Dr. Hanson will use tunable and monochromatic soft x-ray radiation obtained from the National Synchrotron Light Source VUV Ring at Brookhaven National Laboratory to excited gas phase molecules selectively in the region of the K or L edge of the constituent atoms of the molecular systems. Information about the primary excitation process and the subsequent series of events will be obtained by using the techniques of photoelectron spectroscopy, mass spectroscopy, and fluorescence spectroscopy, including coincidence measurements. One of the prime objectives of this research is establishing the correlation between Auger decay chananels and fragmentation channels. The information gained in these experiments is expected to be of benefit to technology and a variety of disciplines.

汉森博士最近启动了一个项目，专门研究双原子、三原子和小多原子分子的内壳电子激发，以表征不同类型化学键的性质。这个项目是世界上为数不多的系统研究这些特性的项目之一。汉森博士将使用从布鲁克海文国家实验室的国家同步加速器光源VUV环获得的可调谐单色软x射线辐射，选择性地在分子系统组成原子的K或L边区域激发气相分子。利用光电子能谱、质谱和荧光光谱技术，包括重合测量，将获得有关初级激发过程和随后一系列事件的信息。本研究的主要目标之一是建立俄歇衰减通道和破碎通道之间的相关性。在这些实验中获得的信息有望对技术和各种学科有益。