Division of Synchrotron Radiation Research, Department of Physics, Lund University, Box 118, 221 00 Lund, Sweden.
J Synchrotron Radiat. 2012 Sep;19(Pt 5):701-4. doi: 10.1107/S0909049512032700. Epub 2012 Aug 7.
The new instrument for near-ambient-pressure X-ray photoelectron spectroscopy which has been installed at the MAX II ring of the Swedish synchrotron radiation facility MAX IV Laboratory in Lund is presented. The new instrument, which is based on a SPECS PHOIBOS 150 NAP analyser, is the first to feature the use of retractable and exchangeable high-pressure cells. This implies that clean vacuum conditions are retained in the instrument's analysis chamber and that it is possible to swiftly change between near-ambient and ultrahigh-vacuum conditions. In this way the instrument implements a direct link between ultrahigh-vacuum and in situ studies, and the entire pressure range from ultrahigh-vacuum to near-ambient conditions is available to the user. Measurements at pressures up to 10(-5) mbar are carried out in the ultrahigh-vacuum analysis chamber, while measurements at higher pressures are performed in the high-pressure cell. The installation of a mass spectrometer on the exhaust line of the reaction cell offers the users the additional dimension of simultaneous reaction data monitoring. Moreover, the chosen design approach allows the use of dedicated cells for different sample environments, rendering the Swedish ambient-pressure X-ray photoelectron spectroscopy instrument a highly versatile and flexible tool.
介绍了一种新的用于近常压 X 射线光电子能谱的仪器，该仪器已安装在瑞典同步辐射设施 MAX IV 实验室的 MAX II 环上。新仪器基于 SPECS PHOIBOS 150 NAP 分析仪，是第一个采用可伸缩和可交换高压腔的仪器。这意味着仪器的分析腔保持在清洁的真空条件下，并且可以在近常压和超高真空条件之间快速切换。通过这种方式，仪器实现了超高真空和原位研究之间的直接连接，用户可以使用整个从超高真空到近常压的压力范围。在超高真空分析腔中进行高达 10(-5) mbar 的压力测量，而在高压腔内进行更高压力的测量。在反应腔的排气线上安装质谱仪为用户提供了同时监测反应数据的附加维度。此外，所选择的设计方法允许使用专用的细胞来适应不同的样品环境，使得瑞典的常压 X 射线光电子能谱仪器成为一种高度通用和灵活的工具。
