Courtesy/NNSA
NNSA News:
The National Nuclear Security Administration (NNSA) will be flying a helicopter over portions of Washington, D.C., between Dec. 27, 2012, and Jan. 11, 2013.
The purpose of these flights is to measure naturally occurring radiation in the Washington, D.C., area.
The radiation assessment will cover approximately 70 square miles and NNSA will complete the assessment using a helicopter equipped with remote gamma radiation sensing technology.
The helicopter will fly in a grid pattern over the areas, 150 feet or higher above the ground surface, at a speed of approximately Read More















