An engineer at a nuclear power station in Pennsylvania set off radiation alarms as he 'walked into work'.

Say again your last about the radiation alarm.

At 21:50, radiation alarms mounted on the cleaning system detected a sudden increase in the amount of krypton-85.

The contamination was discovered the next morning when one operator returned to work and set off a radiation alarm.

This was evidenced by the radiation alarms that eventually sounded.

A few moments later, another radiation alarm sounded.

It is worth noting that bananas have erroneously been reported as the source of radiation alarms; they are not.

When the radiation alarm sounded in the main control room, two transporter technicians were on duty.

Guards ignored radiation alarms that went off as the truck was about to leave the area from which the trash was taken.

The federal government has given thousands of radiation alarms, worn like cellphones on the belt, to police and fire departments in major cities.