TY - GEN AU - Pérez-Moreno, Silvia María AU - Gázquez González, Manuel Jesús AU - Casas Ruiz, Melquiades AU - Gutiérrez San Miguel, Enrique AU - Bolívar, Juan Pedro A4 - Física Aplicada PY - 2019 SN - 0265-931X UR - http://hdl.handle.net/10498/30502 AB - A new method for the determination of radium quartet (223,224,226,228Ra) in environmental samples by alpha-particle spectrometry with PIPS detectors is described. This uses 225Ra as yield tracer, in equilibrium at the beginning with 229Th. Thorium is... LA - eng PB - Elsevier KW - Radium quartet KW - 225Ra tracer KW - 225Ra-225Ac separation KW - Alpha-particle spectrometry TI - An improved method for radium-isotopes quartet determination by alpha-particle spectrometry by using 225Ra (229Th) as isotopic tracer DO - 10.1016/j.jenvrad.2018.11.007 ER -