Dr. Roldánhas been founder member of the Materials Science Institute of the Valencia University (ICMUV) where he is researcher from 1997, member of the Environmental Radioactivity Laboratory of the University of Valencia (LARAM-UV), head of the Archaeometry Unit at the ICMUV, Technical Director of the LARAM-UV, Secretary and Treasurer of the Spanish Society of Archaeometry Applied to Cultural Heritage (SAPaC), member of the “Spanish Network of Experts in Natural and Cultural Heritage” and member of the network “Science and Technology for Cultural Heritage Conservation (Technoheritage)”. He has developed lines of research related to nuclear techniques and Monte-Carlo simulations applied to the characterization of radioactive sources and to the study of proton activation of gamma rays space detectors. Since 1995, his research interests has been focused on the non destructive characterization of Cultural Heritage objects (pigment, metal, ceramic, glass, …) by means of portable energy dispersive X-ray fluorescence spectrometry (EDXRF) and Raman spectroscopy.