To investigate the relationship between the radon diffusion coefficient and free-radon production rate with ambient temperature and water saturation of uranium tailings under frozen and non-frozen conditions, a method was proposed to simultaneously determine the free-radon production rate as well as the diffusion coefficient in porous emanation media based on the pure diffusion migration theory of radon. The diffusion coefficient (alpha), the free-radon production rate (D), and gas permeability (K) of radon at different temperatures (20 degrees C, 0 degrees C, - 10 degrees C and - 20 degrees C...
