This week, a NNSA helicopter has been flying at a low-level altitude over portions of California's Bay Area. The helicopter crew has been taking measurements of naturally-occurring background radiation. The survey is expected to be completed on Saturday, Sept. 1.
The flyovers are a part of a joint research project between NNSA and the Department of Homeland Security’s Domestic Nuclear Detection Office. NNSA’s twin-engine Bell 412 helicopter is operated by the Remote Sensing Laboratory Aerial Measuring System in Las Vegas, Nev.
Photo by Victor Negut, Lawrence Berkeley National Laboratory