Cross-section of The Sample. (image) European Synchrotron Radiation Facility Caption A cross-section of the sample, where the different layers are visible. Credit National Research Institute for Cultural Properties, Tokyo (Japan). Usage Restrictions None 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.