Online ore monitoring using EDXRF method on process conveyor belts at Kazakhmys Corporation LLC operationsTetiana Oliinyk, Sergey Yefimenko, Zaure Abdrakhmanova, Andrey Kan and Farida IssatayevaE3S Web Conf., 166 (2020) 02010DOI: https://doi.org/10.1051/e3sconf/202016602010