Compact water-window transmission X-ray microscopy
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Published on: March 12, 2015
M Berglund1, L Rymell, M Peuker
1Biomedical and X-Ray Physics, Royal Institute of Technology, SE-10044 Stockholm, Sweden; Forschungseinrichtung Röntgenphysik, Georg-August Universität, D-37073 Göttingen, Germany.
Abstract:
We demonstrate sub-100 nm resolution water-window soft X-ray full-field transmission microscopy with a compact system. The microscope operates at lambda = 3.37 nm and is based on a 100 Hz table-top regenerative debris-free droplet-target laser-plasma X-ray source in combination with normal-incidence multilayer condenser optics for sample illumination. High-spatial-resolution imaging is performed with a 7.3% efficiency nickel zone plate and a 1024 x 1024 pixel CCD detector. Images of dry test samples are recorded with exposure times of a few minutes and show features smaller than 60 nm.
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