Estimation of uranium in geological rock samples by beta–gamma method and its comparison with pellet fluorimetry method

Geological rock samples collected from Narwapahar uranium mines, UCIL, Jaduguda were analysed for the estimation of uranium concentration (U3O8) by beta–gamma method which is a physical technique and same set of samples were analysed by pellet fluorimetry technique which is a chemical technique. 28 samples were analysed by beta–gamma method and values varied between 240 and 2,500 ppm. Samples were analysed by pellet fluorimetry and values varied between 260 and 2,300 ppm. The results obtained were well comparable by both the techniques.