The environment dose measurement using the OSL dosimeter

Abstract The OSL (Optically Stimulated Luminescence) dosimeter using Al 2 O 3 :C as a detection material has been commercialized for monitoring personal radiation exposure. We have obtained nationwide ambient doses from control badges for compensating natural environments in the case of personal radiation doses. They were used from August 2001 to July 2002. The nationwide annual average dose for 30 days is 0.9 mSv. The lowest dose is 0.59 mSv of Okinawa Prefecture and the highest is 1.16 mSv of Ishikawa Prefecture. The doses during the month of May are the highest for all prefectures.