noun
external exposure (to radiation)
Technical term used in radiation protection and nuclear contexts. Refers to radiation exposure from sources outside the body.
原子力施設では、作業員の外部被曝を最小限に抑える対策が取られている。
At nuclear facilities, measures are taken to minimize workers' external exposure.
Internal exposure: radiation from sources taken into the body, such as through inhalation or ingestion.
Compound of 外部 (outside, external) and 被曝 (exposure to radiation).