lead-lined door

lead-lined door, radiation-retarding door

A door which is lined internally with lead sheets to prevent the penetration of x-ray radiation.
References in periodicals archive ?
The NCRI also said it smuggled out a photograph showing a 1-foot thick lead-lined door that shields the complex from radiation, and that the secret rooms and hallways are insulated for sound and radiation leaks so that they would remain undetected.
An interlock was incorporated into the custom, automatic, horizontal-sliding, lead-lined doors that contained this space so one side could only open at a time to prevent crosscontamination.
After marrying, Paul and wife Denise started a security technology business in Cornwall - an enterprise which ended for Paul with a permanent injury after some lead-lined doors fell on his spine.