High-Energy X-Ray Optics Development at the APS and Its Shaping of the HEXM Materials Science Beamline

Abstract High-energy x-ray (40-120 keV) optics development at the Advanced Photon Source (APS) will be discussed, including monochromatization (under high-heat-load and for high-resolution applications), focusing (with refractive optics such as tunable saw-tooth lenses), full-field transmission-microscopy imaging, and beam-size expansion. Capabilities already enabled by some of these optics are various high-energy x-ray diffraction microscopies and element-specific resonant scattering at heavy-element K edges. The enhancement of techniques arising from the upgraded APS low-emittance storage ring, combined with the x-ray optics, will be discussed, along with new coherence-exploiting possibilities, within the context of the new High-Energy X-Ray Microscope (HEXM) long beamline.