ALARA stands for which phrase?

ALARA stands for which phrase?

• A. As Low As Reasonably Avoidable
• B. As Low As Reasonably Achievable
• C. As Little As Reasonably Achievable
• D. All Levels Are Radiation-Avoidant

Answer: (B)

The main idea is to keep radiation exposure as low as practicable by applying practical controls and optimizing practices. ALARA stands for “As Low As Reasonably Achievable.” It means every step in a process should aim to reduce dose, but within sensible limits—considering factors like cost, availability of technology, and overall benefit. In practice this includes using shielding, maximizing distance, minimizing time, implementing administrative controls, and continually evaluating procedures to push exposure downward whenever justified. The other phrasings don’t fit the standard: “Avoidable” implies exposure can be completely eliminated, which isn’t feasible; “As Little” misses the notion of achieving reduction within practical limits; and “All Levels Are Radiation-Avoidant” isn’t a recognized phrase.

The main idea is to keep radiation exposure as low as practicable by applying practical controls and optimizing practices. ALARA stands for “As Low As Reasonably Achievable.” It means every step in a process should aim to reduce dose, but within sensible limits—considering factors like cost, availability of technology, and overall benefit. In practice this includes using shielding, maximizing distance, minimizing time, implementing administrative controls, and continually evaluating procedures to push exposure downward whenever justified. The other phrasings don’t fit the standard: “Avoidable” implies exposure can be completely eliminated, which isn’t feasible; “As Little” misses the notion of achieving reduction within practical limits; and “All Levels Are Radiation-Avoidant” isn’t a recognized phrase.