INVESTIGATION OF THE RADIOLOGICAL CHARACTERISTICS OF URANIUM MINE ATMOSPHERES

摘要

Radiological characteristics of the environments of nine representative uranium mines were studied by survey teams equipped to collect and analyze samples underground. Spatial and temporal variations of radon concentration, working level, and radon daughter ratio were investi¬gated for three to four days in each mine by obtaining consecutive measurements at typical locations and operations. Additional measure-ments included gamma radiation, ore dust concentration, temperature, relative humidity, barometric pressure, and ventilation rate, Data are summarized and discussed in the text, and detailed in three appendices.