Welter Edmund, Machek Pavel, Dräger Günter, Brüggmann Ulf, Fröba Michael
Hamburger Synchrotronstrahlungslabor HASYLAB at DESY, Notkestrasse 85, 22607 Hamburg, Germany.
J Synchrotron Radiat. 2005 Jul;12(Pt 4):448-54. doi: 10.1107/S0909049505007843. Epub 2005 Jun 15.
A new focusing spectrometer employing Johann geometry has been built and permanently installed at the wiggler beamline W1 at the Hamburger Synchrotron Strahlungslabor (HASYLAB) am Deutschen Elektronen Synchrotron (DESY). It is now available for user operation. The design of the spectrometer is optimized for the use of a large source spot size at the DORIS storage ring as well as for simple operation and robustness under user-mode conditions. Nevertheless, the ideal source for enlarging the number of possible applications in the future would be an undulator at one of the PETRA III beamlines. In the following the spectrometer design is described and boundary conditions such as the available energy range for future experiments are discussed. Two benchmark experiments, resonant inelastic X-ray scattering (RIXS) and X-ray absorption fluorescence spectroscopy (XAFS), on samples with complicated matrices demonstrate the performance of the new instrument.
一台采用约翰几何结构的新型聚焦光谱仪已建成，并永久安装在德国电子同步加速器研究所（DESY）汉堡同步辐射实验室（HASYLAB）的摆动器光束线W1上。现在可供用户使用。该光谱仪的设计针对多里士储存环处的大源光斑尺寸的使用进行了优化，同时也考虑了在用户模式条件下的简单操作和稳定性。然而，未来扩大可能应用数量的理想光源将是佩特拉III光束线之一处的波荡器。以下将描述光谱仪的设计，并讨论诸如未来实验可用能量范围等边界条件。对具有复杂基质的样品进行的两项基准实验，即共振非弹性X射线散射（RIXS）和X射线吸收荧光光谱（XAFS），展示了这台新仪器的性能。
