Data acquisition and analysis system for electron probe micro-analyzer

需要一个新的数据采集和分析系统来升级微分析实验室的Cameca SX-100型电子探针显微分析仪。EPMA提供对主要到痕量元素(10S Ppm)的现场化学分析，空间分辨率高达1um3。EPMA化学成分数据具有较高的精密度(主要元素占5%，痕量占20%)，准确度高。迫切需要新系统来取代在过时的UNIXUltraSparc I工作站上运行的老化的、有20年历史的系统，这些工作站不再有替换部件可用。EPMA上原有的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的运行是关键和紧迫的，将显著增强和扩展EPMA的能力，使其超越原来的水平，为我们的研究计划提供关键的分析能力。

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 The new system is urgently required to replace the aging, 20-year old system running on an outdated UNIX UltraSparc I workstation, for which replacement parts are no longer available.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.