Roy had the ability to release radiation from his body.
The seeds release radiation for weeks or months, after which they are no longer radioactive.
The beads release radiation at the site of the tumor over a few days or weeks, after which they are no longer radioactive.
Japanese government officials say the Daiichi plant may continue to release dangerous radiation into the air for several months.
A contaminated person is exposed to radiation released by the radioactive material on or inside the body.
(4) Any weapon that is designed to release radiation at a level dangerous to human life.
He did not want them shooting off weapons that would release potentially lethal radiation no matter how powerful they might be.
The blast, I am sure, has also released radiation, some of which will be residual.
The accident did not release radiation or damage the nuclear portion of the plant, utility and government officials said.
The calculations also included radiation released by fire from contaminants in the soil and plants.