Background Radiation

/ˈbækɡraʊnd ˌreɪdiˈeɪʃən/noun

The low level of ionizing radiation that is naturally present in the environment at all times, from cosmic and terrestrial sources.

Radiation that exists naturally in the surrounding environment, originating from sources such as cosmic rays, soil, and building materials.

Urdu

ماحول میں ہر وقت موجود تابکاری کی معمولی سطح جو کائناتی اور زمینی ذرائع سے آتی ہے۔

Hindi

वातावरण में हमेशा मौजूद विकिरण का सामान्य स्तर जो ब्रह्मांडीय और स्थलीय स्रोतों से आता है।

The detector was calibrated to filter out background radiation before measuring the sample.

Related words

Practice

Even without a nearby source, instruments always pick up some from cosmic rays.