In this work, we demonstrate fast X-ray nano-tomography using multilayer Laue lenses (MLLs) to tightly focus the synchrotron beam and enable highly magnified phase-contrast imaging. The 3D reconstruction of silica microspheres (shown here) was achieved with a spatial resolution of 218 nm in only 100 seconds, while our 2D nano-projection images reach sub-200 nm resolution. The MLL optics are the key element that also enables our hierarchical multiscale X-ray tomography (XtremeCT),where we can image from centimeter-scale overview down to nanoscale detail within the same optical setup. This paper presents the nano-imaging component of that XtremeCT development.
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