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NNSA to conduct aerial radiation assessment survey over Minneapolis in support of Super Bowl LII

The AMS helicopter

WASHINGTON – The U.S. Department of Energy’s National Nuclear Security Administration (DOE/NNSA) will conduct low-altitude helicopter flights around Minneapolis between Jan. 29 and Feb. 5 in support of Super Bowl LII to measure naturally occurring background radiation.

The measurement of naturally occurring radiation to establish baseline levels is a normal part of security and emergency preparedness for major public events.

The public may see a twin-engine Bell 412 helicopter, which is operated by the Remote Sensing Laboratory Aerial Measuring System from Joint Base Andrews and is equipped with radiation sensing technology.

The helicopter will fly in a grid pattern over the area at 300 feet (or higher) above the ground surface at a speed of approximately 80 miles per hour. Flyovers will occur only during daylight hours and are estimated to take about three days to complete.

NNSA routinely notifies the public of upcoming flights so that citizens who see the low-flying aircraft are not alarmed.