United States Nuclear Regulatory Commission - Protecting People and the Environment
Home > NRC Library > Basic References > Glossary > Shallow-Dose Equivalent (SDE)

Shallow-Dose Equivalent (SDE)

The external exposure dose equivalent to the skin or an extremity at a tissue depth of 0.007 centimeters (7 mg/cm2) averaged over an area of 1 square centimeter.

Page Last Reviewed/Updated Friday, July 06, 2018