Acquisition of a UV Laser Ablation System for 40Ar/39Ar Research

采购用于 40Ar/39Ar 研究的紫外激光烧蚀系统

• 批准号: 9706062
• 负责人: Matthew Heizler
• 金额: $ 6.91万
• 依托单位: New Mexico Institute of Mining and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-08-01 至 1999-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9706062&HistoricalAwards=false
• 关键词: Acquisition; UV; Laser; Ablation; System

9706062 Heizler This grant provides $49,055 as one-half support of the costs of acquiring a UV laser ablation system for the Ar/Ar geochronology/thermochronology lab at New Mexico Tech. A UV laser will allow these PI's to conduct in situ 40-Ar/39-Ar analyses on spot sizes as small as 50 microns, allowing for higher resolution studies than currently achievable with their CO2 laser used for step-heating and total fusion analyses. The use of a UV laser coupled with rare gas mass spectrometery has a great deal of potential for dating and geochemical analyses of individual fluid inclusions, dating alteration phases and overgrowths in economic mineral deposits and for studies of micro- scale Ar diffusion systematics and undoubtedly will be heavily used by these productive PI's. ***

小行星9706062 这笔赠款提供了49,055美元，作为新墨西哥州理工大学Ar/Ar地质年代学/热年代学实验室购买紫外激光消融系统费用的一半。 紫外激光器将允许这些PI对小至50微米的光斑尺寸进行原位40-Ar/39-Ar分析，从而允许比目前使用其用于步进加热和全聚变分析的CO2激光器所能实现的更高分辨率的研究。紫外激光与稀有气体质谱联用在个别流体包裹体的定年和地球化学分析、经济矿床中蚀变相和增生物的定年以及微尺度Ar扩散系统学的研究方面具有很大的潜力，无疑将被这些生产性PI大量使用。 ***