What is millirad?

Millirad is a unit of measurement used in radiation dosimetry, which refers to the amount of radiation absorbed by a material or living organism. It is equal to one thousandth of a rad, which is the unit of measurement for absorbed dose. The millirad unit is commonly used to express small doses of ionizing radiation, such as those received during medical imaging procedures like X-rays or CT scans. It is also used in industries that deal with radioactive materials, such as nuclear power plants or radioactive waste disposal sites, to monitor radiation levels and ensure worker safety.