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Figure 1
Experimental set-up at beamline 3-ID of the Advanced Photon Source at Argonne National Laboratory, showing the optics including high-heat-load monochromator (HHLM) and high-resolution monochromator (HRM), the instruments on the lower deck including those for nuclear resonant inelastic X-ray scattering (NRIXS), X-ray diffraction (XRD) and synchrotron Mössbauer spectroscopy (SMS), and the laser-heating system on the upper deck. The sample is mounted in a diamond anvil cell (DAC) for high-pressure experiments. Three avalanche photodiode (APD) detectors collect NRIXS signals within a plane that is perpendicular to the synchrotron radiation source, along the radial direction of the DAC. One APD detector records SMS signals in the forward direction, along the axial direction of the DAC. The MAR3450 image plate can be moved in for XRD measurements or out for SMS measurements.

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