@inproceedings{inproceedings87752891,
title   = {Portable X-ray fluorescence system to measure Th and U concentrations in TENORM material},
author = {Silveira, Marcilei Aparecida Guazzelli da and Pereira, B R and Medina, Nilberto Heder and Rizzutto, Márcia de Almeida},
year = {2018},
publisher = {SBF},
booktitle   = {Brazilian Meeting on Nuclear Physics}
}