Incidental exposure is further reduced by the use of a lead shield, lead apron, sometimes with a lead thyroid collar.
While taking X-rays, for instance, doctors in the smaller cities often do not use a lead shield to protect the patient.
A grayness seeped through her eyes, covering her emotions like a lead shield, and she seemed to shrink in on herself.
Any normally sensitive instrument would have detected the hot material through the relatively inadequate lead shield, which is why they brought it in by such roundabout channels.
A small fission generator, in that lead shield.
It can seep through anything except, possibly, a lead shield.
Because there is no way to counteract radioactivity short of putting a lead shield between yourself and it.
An airtight lead shield.
Without a lead shield, the electrons within a person's body would be affected, which could damage their DNA and cause cancer.
Only the dammed watercourse and the great lead shield were left to reflect the starshine.