What is the term for the amount of radiation absorbed by tissue?

The correct term for the amount of radiation absorbed by tissue is "radiation dose." This concept is crucial in understanding how radiation affects biological tissues. Radiation dose specifically refers to the energy deposited by ionizing radiation in a unit mass of tissue and is measured in grays (Gy). It quantifies the biological impact of the radiation, which is essential for assessing potential health risks associated with exposure.

Radiation exposure, while related, refers more broadly to the amount of radiation incident on a person or object, not specifically what is absorbed by the tissue. Radiation intensity generally deals with the strength or power of radiation in a specific area but does not account for how much of that radiation is absorbed. Radiation level often describes the environmental measurement of radiation, typically in terms of background radiation or specific locations, rather than focusing on the biological effects on tissue. Therefore, "radiation dose" is the most precise terminology regarding how much radiation is absorbed by biological tissue.