Sharper Imaging Using X-Rays (image) Helmholtz-Zentrum Berlin für Materialien und Energie Share Print E-Mail Caption These scanning electron micrographs show how accurately the three Fresnel zone plates were positioned above one another. 3D X-ray optics of this kind allow the resolutions and optical intensities to be considerably improved. Credit Image: S. Werner/HZB Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.