Christopher Morris, Los Alamos National Laboratory (IMAGE)
Caption
Christopher Morris, leader of Los Alamos National Laboratory's Muon Tomography Project, watches an image of two dense hemispheres of lead develop on a computer screen after just over a minute of exposure to muons -- naturally occurring particles generated with cosmic rays interact with Earth's atmosphere. Morris and colleagues have developed a method to use muons to peer inside closed containers, even very dense ones, to detect smuggled nuclear materials or to peer inside damaged nuclear reactor cores, like those at the Fukushima Daiichi complex in Japan.
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Los Alamos National Laboratory photo
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