Aerosol Impact Spectrometer (VIDEO) University of California - San Diego This video is under embargo. Please login to access this video. Caption A custom-built aerosol impact spectrometer from UC San Diego Professor of Chemistry Robert Continetti's lab. Ice grains impact the microchannel plate detector (far right) at hypervelocity speeds, which can then be characterized in-situ. Credit Robert Continetti lab / UC San Diego Usage Restrictions editorial use only License Original 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.