Final answer:
The dose equivalent is the equivalent dose, measured in sieverts (Sv), which accounts for the type of radiation and its risk; it's calculated as the absorbed dose in grays times the radiation weighting factor. Option 3 is correct.
Step-by-step explanation:
The measurement that refers to dose equivalent in the context of radiation exposure is not the absorbed dose, effective dose, nor the committed dose, but rather the equivalent dose. The equivalent dose is measured in sieverts (Sv) and takes into account both the energy absorbed by the body (measured in grays (Gy)) and the type of radiation (expressed as a radiation weighting factor, WR).
Thus, the equivalent dose in sieverts is calculated as the product of the absorbed dose in grays and the radiation weighting factor. This dose measurement is crucial as it considers the differing levels of health risks associated with various types of ionizing radiation. For example, 1 Gy of alpha particles poses a significantly higher risk of causing cancer than 1 Gy of beta particles.
The measurement of dose equivalent refers to the equivalent dose. Equivalent dose measures the health effects of low levels of ionizing radiation on the human body and is expressed in sievert (Sv). It takes into account both the absorbed dose in grays (Gy) and the radiation weighting factor (WR). The formula to calculate the equivalent dose is: The equivalent dose in Sv = Absorbed dose in Gy x WR.