Final Report: Laser-Material Interactions Relevant to Analytic Spectroscopy of Wide Band Gap Materials

Dickinson, J. T.¹ 

[1] Washington State University

关键词: laser surface;    interactions;    particle mass spectroscopy;    chemical analysis;    waste characterization;   

DOI  :  10.2172/1126907
RP-ID  :  DOE-WASHINGTONSTATEUNIVERSTY-15618
PID  :  OSTI ID: 1126907

学科分类：能源（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

We summarize our studies aimed at developing an understanding of the underlying physics and chemistry in terms of laser materials interactions relevant to laser-based sampling and chemical analysis of wide bandgap materials. This work focused on the determination of mechanisms for the emission of electrons, ions, atoms, and molecules from laser irradiation of surfaces. We determined the important role of defects on these emissions, the thermal, chemical, and physical interactions responsible for matrix effects and mass-dependent transport/detection. This work supported development of new techniques and technology for the determination of trace elements contained such as nuclear waste materials.