An area or space where radiation is present or measured.

विकिरण क्षेत्र

English Usage: The scientist studied the radiation zone for signs of increased activity.

Hindi Usage: वैज्ञानिक ने विकिरण क्षेत्र का अध्ययन किया ताकि बढ़ी हुई गतिविधि के संकेत मिले।