What unit is commonly used to measure absorbed dose of radiation?

The commonly used unit to measure absorbed dose of radiation is the Gray (Gy). This unit quantifies the amount of radiation energy absorbed per kilogram of matter, specifically biological tissue. One Gray is defined as the absorption of one joule of radiation energy by one kilogram of matter. In radiation safety and healthcare, it's crucial to assess the absorbed dose to understand the potential biological effects of radiation exposure on human tissues.

While the Sievert (Sv) is used to measure the biological effect of radiation (taking into account the type of radiation and its impact on different tissues), it is not directly measuring the absorbed dose. The Curie (Ci) measures radioactivity, which is the rate at which a sample of radioactive material decays, and the Rad, an older unit for absorbed dose, has largely been replaced by the Gray in scientific and regulatory contexts. Therefore, Gray is the correct and most relevant unit for assessing absorbed dose in this setting.