A sealable ultrathin window sample cell for the study of liquids by means of soft X-ray spectroscopy
A sealable ultrathin window sample cell for the study of liquids by means of soft X-ray spectroscopy
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DOI：
10.1063/1.5006122
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发表时间：
2017-12-01
影响因子：
1.6
通讯作者：
Kanngiesser, B.
中科院分区：
文献类型：
--
作者：
Grotzsch, D.;Streeck, C.;Kanngiesser, B.
提出了一种新的样品池概念，用于使用软X射线光谱分析液体或固-液界面，该样品池能够完全密封，并通过例如加载锁定系统输送到真空中。该单元使用压力监测和主动以及被动压力调节系统，从而便于在填充、密封、排空和测量期间对压力进行完全控制。详细介绍了池的设计、样品的制备以及关键的密封步骤。作为第一个验证的原理实验，成功的氮K-边缘荧光产量近边缘X射线吸收精细结构的生物分子溶液的实验。为此目的，它表明，仔细评估所有涉及的参数，如窗口类型或光子通量，是理想的优化实验结果。出版社：AIP Publishing
A new sample cell concept for the analysis of liquids or solid-liquid interfaces using soft X-ray spectroscopy is presented, which enables the complete sealing of the cell as well as the transport into vacuum via, for example, a load-lock system. The cell uses pressure monitoring and active as well as passive pressure regulation systems, thereby facilitating the full control over the pressure during filling, sealing, evacuation, and measurement. The cell design and sample preparation as well as the crucial sealing procedure are explained in detail. As a first proof-of-principle experiment, successful nitrogen K-edge fluorescence yield near-edge X-ray absorption fine structure experiments of a biomolecular solution are presented. For this purpose, it is shown that the careful evaluation of all involved parameters, such as window type or photon flux, is desirable for optimizing the experimental result. Published by AIP Publishing.