Quartz Vibrational Resonator Laser Photo-Acoustic Sensing Technology (IMAGE) DOE/Pacific Northwest National Laboratory Caption A conceptual prototype of Pacific Northwest National Laboratory's Quartz Vibrational Resonator Laser Photo-Acoustic Sensing technology. The prototype includes 10 pairs of quantum cascade lasers and tuning forks in a box that is 12 inches long, 12 inches wide and 6 inches high. The full case would weigh less than 15 pounds. The technology can detect gaseous nerve agent surrogates, at the sub-part-per-billion level, in less than one minute. Credit Pacific Northwest National Laboratory 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.