It turns out that Denver and much of Colorado has background radiation higher than in many other places. Partly it's the altitude. There's less atmosphere shielding Colorado from cosmic rays.

The DoE's National Nuclear Security Administration will conduct "low-altitude helicopter flights" with a Bell 412 helicopter equipped with radiation sensing technology and operated by Joint Base ...

Authorities said low-altitude helicopter flights will be conducted Wednesday through Monday to measure background radiation in preparation for the race.

But flight attendants and pilots also face an unseen menace on the job: Cosmic radiation. You can't see it or feel them, but at any given moment, tens of thousands of highly charged particles are ...

Beginning Dec. 2 through Dec. 13, the U.S. Department of Energy's National Nuclear Security Administration (NNSA) will conduct low-altitude helicopter flights over downtown. The helicopters will ...

Government researchers have written an Android app that lets your phone's camera act as a gamma radiation detector. We're not talking about the same quality of detection as a commercial detector ...

"Even though the exposure levels are higher at the higher cruise altitude, the typical flying public will actually receive less radiation exposure than on today's subsonic transports because of ...

"These aerial radiation assessment surveys are a normal and routine part of security and emergency preparedness activities." The NNSA will fly a helicopter at relatively low altitude.

This morning, a Department of Energy helicopter buzzed above cities and suburbs in eastern Massachusetts, scanning for radiation in advance of the 125 th Boston Marathon. The sweep is part of ...

A CT scan for a head injury. Mammograms every other year, starting at age 50. Over a typical lifetime of radiation exposure from medical tests, a person can start to wonder: How much is too much?

The helicopter's pilot is flying in a grid pattern at an altitude of about 150 feet, and moving around 80 mph, measuring normal background radiation levels ahead of the Feb. 13 game and its ...

NNSA’s Nuclear Emergency Support Team, or NEST, aircraft will measure expected background radiation as part of standard preparations to "protect public health and safety" on race day. That means you ...