Salt lies deep in the earth and can easily contain deadly radiation.

Piled outside are thousands more barrels covered with soil and grass to contain radiation and to prevent damage from the elements.

In reality, natural sunlight contains radiation from many areas of the spectrum.

"How can a network of cloaking devices contain radiation as powerful as that?"

The fact that the energy density of the box containing radiation is proportional to can be derived using thermodynamics.

The total internal energy of the box containing radiation can thus be written as:

Specifically, the ones which describe accelerating black holes contain gravitational radiation.

The lights were not overly bright, and shielded to contain whatever ultra-violet radiation the fluorescent might emit.

Depending on the type of waste disposed, the disposal facility may need to contain radiation for a very long time.

As mentioned earlier the warm-white lighting contains little infra-red radiation.