What is the unit of measurement for radiation dose that accounts for biological effects?

The unit of measurement for radiation dose that accounts for biological effects is the Sievert. The Sievert is specifically designed to measure the biological effect of ionizing radiation; it takes into consideration not just the amount of radiation absorbed, but also the type of radiation and its impact on human tissue. This makes the Sievert particularly relevant in applications involving human exposure to radiation, such as medical treatments and radiation safety.

Other units like Gray measure the absorbed dose of radiation, but they do not account for the varied biological impact different types of radiation can have on living tissues. The Curie measures radioactivity, indicating the amount of radioactive material present, while the Rem is an older unit that also accounts for biological effects like the Sievert, though it has largely been replaced by the Sievert in modern practice due to the latter's integration into the International System of Units (SI). Using the Sievert provides more standardized and consistent results worldwide.