What does "deep dose equivalent" refer to?

"Deep dose equivalent" specifically refers to the measurement of external radiation dose delivered to the whole body at a particular depth within the tissue, typically measured at a depth of 30 centimeters. This depth is significant because it represents the level at which the majority of radiation is absorbed by the body, particularly for high-energy photons. This measurement helps assess the potential biological effects of radiation exposure on more critical and deeper tissues and organs that may be impacted by external sources.

Understanding this concept is crucial for radiological workers, as it provides insight into how radiation can affect human health, particularly regarding safety standards and risk management in workplaces involving radiation. The deep dose equivalent is used in regulatory compliance and exposure assessments to ensure that workers are protected and that exposure levels remain within safe limits.