Mantouvalou Ioanna, Witte Katharina, Grötzsch Daniel, Neitzel Michael, Günther Sabrina, Baumann Jonas, Jung Robert, Stiel Holger, Kanngiesser Birgit, Sandner Wolfgang
Institute for Optics and Atomic Physics, Technical University of Berlin, 10623 Berlin, Germany.
Max-Born-Institute, 12489 Berlin, Germany.
Rev Sci Instrum. 2015 Mar;86(3):035116. doi: 10.1063/1.4916193.
In this work, a novel laser-produced plasma source is presented which delivers pulsed broadband soft X-radiation in the range between 100 and 1200 eV. The source was designed in view of long operating hours, high stability, and cost effectiveness. It relies on a rotating and translating metal target and achieves high stability through an on-line monitoring device using a four quadrant extreme ultraviolet diode in a pinhole camera arrangement. The source can be operated with three different laser pulse durations and various target materials and is equipped with two beamlines for simultaneous experiments. Characterization measurements are presented with special emphasis on the source position and emission stability of the source. As a first application, a near edge X-ray absorption fine structure measurement on a thin polyimide foil shows the potential of the source for soft X-ray spectroscopy.
在这项工作中，展示了一种新型激光产生等离子体源，它能产生能量范围在100至1200电子伏特之间的脉冲宽带软X射线辐射。该源的设计考虑了长运行时间、高稳定性和成本效益。它依靠一个旋转和平移的金属靶，并通过在针孔相机装置中使用四象限极紫外二极管的在线监测设备实现高稳定性。该源可以使用三种不同的激光脉冲持续时间和各种靶材进行操作，并配备了两条用于同步实验的光束线。给出了表征测量结果，特别强调了源的位置和发射稳定性。作为首次应用，对薄聚酰亚胺箔进行的近边X射线吸收精细结构测量显示了该源在软X射线光谱学方面的潜力。
