Arun Devaraj with microscopes (IMAGE) DOE/Pacific Northwest National Laboratory Caption Arun Devaraj, a materials scientist at PNNL, checks a specimen on a scanning electron microscope. Credit (Photo by Andrea Starr | Pacific Northwest National Laboratory) Usage Restrictions No restrictions. License Public Domain 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.