Peter Lobner
Using a technique called muon tomography, 21-foot by 21-foot muon detectors will be used to collect data over periods of months to develop high-resolution images of the damaged Fukushima reactors.
Source: LANL
Read a brief article on this subject at the following link:
More details are in Los Alamos report LA-UR-12-20494, “Our Next Two Steps for Fukushima Daiichi Muon Tomography”, which is the source of the above diagram. You can view or download this LANL report for free at the following link:
http://permalink.lanl.gov/object/tr?what=info:lanl-repo/lareport/LA-UR-12-20494