In what unit is equivalent dose rate measured?

The equivalence in dose rate is a crucial concept for understanding exposure to ionizing radiation and its biological effects. The unit of equivalent dose rate is measured in sieverts per hour (Sv/h). Hence, the correct unit for equivalent dose, which considers the biological effect of radiation, is indeed the sievert (Sv).

Equivalence is significant because it allows scientists and medical professionals to assess the potential harm that radiation can cause to human tissues. By measuring in sieverts, a measure of health risk from radiation exposure, one can gauge how different types of radiation (which may have different biological effects) contribute to overall risk.

In contrast, other units mentioned—such as gray (Gy) and joules per kilogram (J/kg)—measure the physical energy deposited by radiation but do not account for its biological effects. Additionally, /Sv is not a unit of measurement but would refer to a frequency rather than a rate. Thus, the right approach to understanding equivalent dose rates aligns with using sieverts, as they allow for a comprehensive assessment of radiation's impact on health.