Sputter Initiated Resonance Ionization Spectroscopy for In Situ Microanalysis in the Geosciences

用于地球科学中原位微量分析的溅射引发共振电离光谱

• 批准号: 8860854
• 负责人: Robert Willis
• 金额: $ 4.97万
• 依托单位: ATOM SCIENCES INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-01-01 至 1989-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8860854&HistoricalAwards=false
• 关键词: Sputter; Initiated; Resonance; Ionization; Spectroscopy

Sputter Initiated Resonance Ionization Spectroscopy (SIRIS), based on the concept of laser-induced resonance ionization of sputtered atoms, offers the potential to make in-situ chemical and isotopic microanalyses possible with excellent sensitivity to low concentrations and combined excellent spatial resolution. This project is a Phase I award under the Small Business Innovation Research Program that will test SIRIS methods for analysis of calcium and titanium isotopes in geological samples. The research plan is to assess interference problems from sputtered ions and nonresonant photo-ions and to identify analytical procedures for SIRIS analysis of calcium and titanium. The studies will form a basis for more general development of SIRIS microanalytical techniques for geological samples.

溅射引发的共振电离光谱(SIRIS)基于激光诱导溅射原子共振电离的概念，使原位化学和同位素显微分析成为可能，具有对低浓度的良好灵敏度和结合良好的空间分辨率。该项目是小型企业创新研究计划下的第一阶段奖项，将测试地质样品中钙和钛同位素分析的Siris方法。研究计划是评估溅射离子和非共振光离子的干扰问题，并确定Siris分析钙和钛的分析方法。这些研究将为更广泛地开发地质样品的Siris微量分析技术奠定基础。