All personnel at the base were required to wear radiation badges to measure their exposure to fallout.

She thrust another such set at Karatek, along with a radiation badge.

He looked down at his radiation badge, suppressing a snarl at what it told him.

"I've started issuing new radiation badges," the medical officer continued.

None of them had been wearing radiation badges, which would have helped register the extent of the exposure.

And the radiation badges were turned in to him, not the safety people, at the end of the long day.

A standard radiation badge clung to the pocket.

He got a look at his radiation badge and wished that he had not.

"Approaching controls," Karatek spoke up again, although he knew that the watch there could track him by his radiation badge.