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For ξ = 5 × 1012 atoms/s and Tb ≈ 0.8 s, a frequency stability of 0.95 × 10-15 could be achieved at 1000 s.In this study, high-energy x-ray nanotomography (nano-computed tomography, nano-CT) based on full-field x-ray microscopy was developed. Fine two-dimensional and three-dimensional (3D) structures with linewidths of 75 nm-100 nm were successfully resolved in the x-ray energy range of 15 keV-37.7 keV. The effective field of view was ∼60 µm, and the typical measurement time for one tomographic scan was 30 min-60 min. The optical system
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