Validation of Environmental TLDs Used In Indian Nuclear Programmes

摘要: Thermoluminescence dosemeters have been employed for nearly three decades on a large scale environmental radiation monitoring around all the nuclear facilities in India. The TLD consists of pair brass capsules containing CaF 2 TL phosphor powder. performance quality these TLDs has validated four different ways: (i) participation an international intercomparison dosemeters, (ii) with other systems based entirely principles, (iii) comparison estimations from soil radioactivity plus cosmic rays, and (iv) evaluation 41 Ar doses reactor stacks comparing estimates excess natural background radiation. In cases, agreement quite satisfactory