Sandia X-ray Phase Contrast Imaging (IMAGE) DOE/Sandia National Laboratories Caption Sandia National Laboratories researcher Amber Dagel holds a calibration sample to be loaded into the labs' X-ray phase contrast imaging machine. Dagel is principal investigator for the labs' work into using X-ray phase contrast imaging to study low-density materials. Credit Sandia National Laboratories/Randy Montoya Usage Restrictions Credit to Sandia National Laboratories License Licensed content 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.