JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - UNPB AU - Scholz, F. AU - Buck, J. AU - Hoesch, M. AU - Huang, M.-J. AU - Kalläne, M. AU - Pfau, B. AU - Schneider, M. ED - Schaa, Volker R.W. ED - Bian, Lin ED - Chen, Zhichu ED - Dong, Yuhui ED - He, Ping TI - Commissioning of the Intermediate Focus Setup at P04 at DESY J2 - Proc. of MEDSI2023, Beijing, China, 06-10 November 2023 CY - Beijing, China T2 - International Conference on Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation T3 - 12 LA - english AB - The soft x-ray beamline P04 at PETRA III includes an experiment and beam-diagnostic station called Intermediate Focus (IF). The station holds an experimental station for soft x-ray scattering, as well as diagnostic and beam shaping equipment to propagate the beam further into the ASPHERE III setup of the University of Kiel (CAU). The IF station receives the beam over a pair of Kirkpatrick-Baez (KB) mirrors that produce 40 µm x 40 µm beam spot at the IF position. An additional set of KB mirrors inside the ASPHERE III instrument refocuses this spot into the ultimate focus. Among the beam shaping equipment, a set of interchangeable pinhole serve as a new source point. With a size between 5-100 µm they will produce a sub-micron beam size, which is less than 1 µm x 1 µm at the sample position. The IF station includes two features that will be presented: (a) A UHV switchyard that allows to bring either the scattering instrument or the beam shaper into the beam (collaboration with Max-Born-Institute Berlin). The switch between the setups works without breaking the vacuum. (b) The beam diagnostic and shaping assembly, including measurement and viewing components. PB - JACoW Publishing CP - Geneva, Switzerland ER -