Deep Dose Equivalent is an external dose concept for reaching deep tissue and bone marrow. Which statement is correct?

Deep Dose Equivalent is an external dose concept for reaching deep tissue and bone marrow. Which statement is correct?

• A. True
• B. False
• C. Only for internal organs
• D. For skin exposures only

Answer: (A)

Deep Dose Equivalent is the external dose quantity that represents the dose to tissue at a depth of about 1 centimeter (10 mm) in the body. This makes it the measure used to estimate dose to deep tissues such as bone marrow from external radiation exposure. It is distinct from skin dose, which uses a much shallower depth, and from internal doses that come from internal contamination. So, the statement is true: Deep Dose Equivalent relates to external exposure and targets deep tissues, including bone marrow.

Deep Dose Equivalent is the external dose quantity that represents the dose to tissue at a depth of about 1 centimeter (10 mm) in the body. This makes it the measure used to estimate dose to deep tissues such as bone marrow from external radiation exposure. It is distinct from skin dose, which uses a much shallower depth, and from internal doses that come from internal contamination. So, the statement is true: Deep Dose Equivalent relates to external exposure and targets deep tissues, including bone marrow.