Absorbed dose rate is a measure of the amount of energy deposited in a substance per unit mass over a specified period of time. It is used to quantify the rate at which ionizing radiation is absorbed by a material or living organism.

Common examples of units related to absorbed dose rate include gray per second (Gy/s) in the International System of Units (SI) and rad per hour (rad/h) in the older CGS system. These units are used in various fields such as radiation therapy, nuclear power plants, and environmental monitoring.

• Used in radiation therapy to determine the amount of radiation a patient receives
• Important in monitoring radiation levels in nuclear power plants
• Essential for assessing the impact of radiation on the environment