“Lighthouse Detector” can distinguish between many sources of radiation

Ars Technica --------- A lighthouse is built to shed light on rocky waters, turning at the top of a tower to illuminate sections of a dark shoreline that might harm incoming boats. Researchers from Los Alamos National Laboratory (LANL) and a company called Quaesta Instruments have drawn from that age-old design and assembled a sort of reverse-lighthouse to detect radiation in an area. Instead of sending light out, a Lighthouse Detector senses when radiation is coming in. To learn more click on the picture below to read the article.