Equipment assembled included remote-controlled bulldozers and robot-carts that could detect radioactivity and carry hot debris.

The injected material is detected visually and/or with a probe that detects radioactivity (middle panel).

Routine monitoring detected radioactivity on some of the substances but not others.

"Could you detect radioactivity on a ship?"

This is a very popular technique in practices that require detecting and quantifying radioactivity.

The city also has about 900 police sergeants who are assigned to carry pager-size devices that detect radioactivity, he added.

The radioactive substance will collect in the overactive gland and show up brightly on a special camera that detects radioactivity.

The most common means of detecting radioactivity is to measure these emissions using an ionization chamber.

Also, many officers will be equipped with high-tech sensors to detect radioactivity, an effort aimed at identifying any nuclear threat, the officials said.

They just detected radioactivity and they had to pursue that, and that is obviously the right thing to do in these circumstances, in these times.