A simple technique for determining the equilibrium equivalent Thoron concentration using a CR-39 detector: Application in mineral treatment industryC. Kranrod, S. Chanyotha, N. Chankow, S. Tokonami, T. Ishikawa and S. K. SahooRadioprotection, 44 5 (2009) 301-304DOI: https://doi.org/10.1051/radiopro/20095058