Development of a novel soft X-ray absorption spectroscopy setup under the normal atmospheric pressure condition

迄今为止，软X射线分析的应用受到很大限制。由于低于2.0 keV的软X射线在大气中会被吸收，因此软X射线分析的标准程序是在高真空室内安装实验所需的所有设备。本研究开发了常压软X射线光吸收光谱仪，用于常压下物质的电子结构性质的观测。我们已经成功地表明了XAS分析在更真实的环境下的能力，以及这种技术在探测化学反应的重要方面的独特能力。

So far, the application of soft X-ray analysis is highly restricted. Since soft X-rays below 2.0 keV are fairly absorbed in atmospheric air, the standard procedure in a soft X-ray analysis is to install all equipment necessary for experiments inside the high-vacuum chamber. In the present research, we have developed "the ambient pressure soft X-ray photoabsorption spectroscopy" for the observation of electronic and structural properties of matters under the normal atmospheric pressure condition. We have successfully indicated the capabilities of the XAS analysis under the more real environment, and the unique power of this technique to probe significant aspect of chemical reactions.