Journal: Journal of Synchrotron Radiation
Article Title: Five-analyzer Johann spectrometer for hard X-ray photon-in/photon-out spectroscopy at the Inner Shell Spectroscopy beamline at NSLS-II: design, alignment and data acquisition
doi: 10.1107/S1600577524009342
Figure Lengend Snippet: Implementation of continuous XES scanning. At the beginning, the spectrometer is set to the relevant emission energy, typically in the middle of the scanning range. The detector is then positioned outside of the intersecting Rowland circles to separate the individual SBCA reflections, as explained in the main text. The order of SBCA reflections is inverted on the detector sensor with respect to the SBCA arrangement. The scan is performed by asynchronously moving the SBCA pitch motors according to the user-supplied trajectory while collecting images with the Pilatus 100K detector using an external trigger source. The data consist of the image stream, individual SBCA positioning streams and ion-chamber currents (not shown). The coordinate system of the beamline is given for reference.
Article Snippet: The spectrometer detector mount can support two kinds of detectors: a Pilatus 100K 2D pixelated area detector (Dectris), and a silicon drift detector (SDD) system consisting of a Vortex-60EX detector with 80 mm 2 active area (Hitachi High-Tech Science America, Inc.) and an Xspress 3X readout electronics module (Quantum Detectors Ltd).
Techniques: