Development of Ion Luminescence Microscopic Spectroscopy and Imaging system for the surface characterization of individual aerosol in the atmoshpere

在这项研究中，我们开发了离子发光显微成像和光谱分析系统(ILUMIS)来建立微观目标的高分辨率离子发光(IL)光谱。将ILUMI分析系统与传统的空气微型PIXE分析系统相结合，可同时获得微米级颗粒靶的化学成分和元素组成。随后将ILUMI系统应用于从大气中获得的单个气溶胶目标的化学成分分析。利用离子液体光谱和成像技术，成功地获取了气溶胶颗粒的有机和无机表面污染物。利用新研制的外置质子微束探头的ILUMI系统，成功地完成了单个气溶胶靶区的化学成分分析。

In this study, we have developed Ion Luminescence Microscopic Imaging and spectroscopy (ILUMIS) analysis system to establish high-resolution Ion Luminescence (IL) spectroscopy of microscopic targets. Chemical and elemental compositions of micrometer-sized particulate targets were simultaneously obtained by combining ILUMIS analysis system with conventional in-air micro-PIXE analysis system. ILUMIS system was then applied to the chemical composition analysis of individual aerosol targets obtained from the atmosphere. Organic and inorganic surface contaminants of aerosol particles were successfully obtained by IL spectroscopy and imaging. Chemical composition analysis of individual aerosol targets was satisfactorily accomplished with newly developed ILUMIS system using external proton microbeam probe.