11-ID-D: a high-energy, high-flux, multi-modal x-ray diffraction beamline at the APS

The Advanced Photon Source recently completed an upgrade to a fourth-generation synchrotron. To make use of the new source characteristics, beamline 11-ID-D has undergone a complete redesign, incorporating a novel double bounce multi-layer monochromator, advanced focusing capabilities, and a multi-modal detector array enabling previously infeasible in situ, in operando and extreme environment experiments with a bright, high-energy x-ray beam. Key to these capabilities, is 11-ID-D’s unique, highly configurable, double-bounce multi-layer monochromator system. The multi-layers strongly suppress higher-order harmonics and are designed with bandwidths matched to the width of the insertion device’s harmonics, transmitting an exceptionally high-flux yet clean beam. To allow for a wide range of scientific use cases, each optic hosts multiple multi-layer stripes; allowing for a nearly continuous energy selection between 40 and 130 keV and the bealime layout exhibits a long flight path with a designated optics hutch to allow for sub-micron 2D focusing over the full energy range. Additionally, the experimental hutches are outfitted with an array of detectors to allow for simultaneous wide-angle, small-angle and inelastic scattering data collection. This presentation will give an overview of 11-ID-D, detail the performance of its unique monochromator system, and show preliminary measurements collected on the nearly completed beamline.