What does ALARA stand for in radiation safety?

ALARA stands for "As Low As Reasonably Achievable." This principle is a cornerstone of radiation safety and emphasizes that all exposure to radiation should be minimized as much as possible, while still taking into account economic and societal factors. The key elements of the ALARA principle involve applying measures that reduce radiation exposure to the lowest levels that can be reasonably achieved, which includes the use of shielding, distance, and time management in environments where radiation exposure is a concern.

The term incorporates a balance between risk and practicality, ensuring that measures to limit radiation exposure are reasonable and feasible. This concept is critical in settings such as hospitals, research laboratories, and nuclear power plants, where managing radiation safety is essential for protecting both workers and the public.