SLIM (IMAGE) DOE/Pacific Northwest National Laboratory Caption In order to better identify components in blood and tissue samples, SLIM's ingenious serpentine design packs a 40-foot ion path into a device about the size of a small laptop computer that is only a quarter inch thick. Credit PNNL Usage Restrictions None 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.