At what depth is the deep dose equivalent (DDE) evaluated?

The deep dose equivalent (DDE) is evaluated at a depth of 1 cm in tissue. This measurement is important in radiation protection because it provides an indication of the dose received by the whole body or significant portions of the body from penetrating radiation, such as gamma rays and x-rays. The use of 1 cm as the standard depth reflects the level at which radiation can deeply penetrate body tissue, aligning with the biological effects observed in occupational exposure scenarios. This depth allows for consistent and reliable assessments in evaluating the potential risk of radiation exposure, making it a critical standard in radiation safety calculations and monitoring practices.