Data acquisition and analysis system for electron probe micro-analyzer

电子探针显微分析仪数据采集分析系统

• 批准号: RTI-2018-00334
• 负责人: Beaudoin, Georges
• 金额: $ 10.93万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=642261
• 关键词: Data; acquisition; analysis; system; electron

A new data acquisition and analysis system is requested to upgrade a Cameca SX-100 electron probe micro-analyzer (EPMA) at the Laboratoire de microanalyse. The EPMA provides in situ chemical analyses for major to trace elements (10s ppm) with a spatial resolution up to 1um3. The EPMA chemical composition data has a high precision (< 5%, major elements; <20% traces), and accuracy. The new system is urgently required to replace the aging, 20-year old system running on an outdated UNIX UltraSparc I workstation, for which replacement parts are no longer available. The detector of the original EDS system on the EPMA has lost sensitivity and spectral resolution and cannot provide anymore the accurate and precise results required by our research programs. These upgrades are critical and urgent to operate the EPMA, and will significantly enhance and extend the EPMA capabilities beyond their original level, providing critical analytical capabilities to carry our research programs.

需要一个新的数据采集和分析系统，以更新微量分析实验室的Cameca SX-100型电子探针微量分析仪。EPMA提供主要到痕量元素（10 s ppm）的原位化学分析，空间分辨率高达1 μ m 3。电子探针化学成分数据具有高精度（<5%，主要元素; <20%痕量）和准确性。迫切需要新的系统来取代在过时的UNIX UltraSparc I工作站上运行的20年之久的陈旧系统，因为已经没有备件可供更换。原电子探针EDS系统的探测器已经失去了灵敏度和光谱分辨率，不能再提供我们的研究计划所要求的准确和精确的结果。这些升级对EPMA的运行至关重要，并将大大增强和扩展EPMA的能力，使其超出原来的水平，为我们的研究计划提供关键的分析能力。