The amount of radiation you receive is kept to a minimum.

When set to a lower power level, he said, they simply cycle on and off to reduce the total amount of radiation.

As winter starts the amount of radiation from the sun begins to fall.

There are three factors that control the amount, or dose, of radiation received from a source.

Its collapse would let greater amounts of radiation from space reach the surface.

The glass prevents the small amount of radiation from getting out.

Being 14 times farther from its primary, it received only half the amount of radiation that the Earth did.

Eventually, a small amount of radiation was released to the outside.

The amount of medicine taken, or radiation given, at one time.

The amount of radiation measured always turned out to be far greater than his theory predicted.