Nano Insights Could Lead to Improved Nuclear Reactors (image) California Institute of Technology Share Print E-Mail Caption A copper and iron nano pillar that has been implanted with helium (as seen with a scanning electron microscope). The arrow points to the interface between the two metals. Credit Peri Landau et al./Caltech 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.