Testing permeability of building materials for radon diffusion

A Narula, R Chauhan, S Chakarvarti
2010 Indian Journal of Pure & Applied Physics   unpublished
The diffusion coefficient and length for some building construction materials like limestone powder, sandstone, granite, crasher, soil, sand, cement, fly ash, gypsum, wall putty have been calculated. The diffusion of radon gas through these materials has been carried out under a control study. Uranium ore has been used as radon source and LR-115 solid-state nuclear track detectors are used to record alpha tracks due to diffusion of radon at different heights from the source. The results
more » ... The results indicate that the diffusion coefficient and length of radon gas in building materials are the measure of its permeability through that medium.