A review article on the study of radon and thoron concentration using solid state nuclear track detector

The discovery of Solid State Nuclear Track Detectors (SSNTD) in 1958 found promising application in the various field like gamma dose measurement and neutron detection etc. The present article deals with the estimation of concentration of radon in different parts of the India due to the demanding interest on the work of radon and its yields as a source of exposure to radiation. Human beings consume radon as a main radioactive source by inhaling it from surroundings, which is naturally, occurs in atmosphere. Several observations show that radon and its progeny causes lung cancer. Track detectors were used for determining gas concentration levels of radon and its progeny in the dwellings of various parts of India. In the present review article the relation among building materials, insulation systems, and indoor radon pollution has been studied.