title: Preface.
authors.affiliation: Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile, C.R. Casaccia, Via Anguillarese 301-00123 S. Maria di Galeria, Rome, Italy. defelice@casaccia.enea.it
authors.forename: Pierino
authors.initials: P
authors.lastname: De Felice
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Hino
authors.forename: Franz Josef
authors.initials: FJ
authors.lastname: Maringer
authors.forename: Uwe
authors.initials: U
authors.lastname: Wätjen
mesh_terms: D009686:Nuclear Physics / Q000639:trends*; D011868:Radioisotopes / Q000032:analysis*; D011874:Radiometry / Q000639:trends*; D014894:Weights and Measures
chemical_list: D011868:Radioisotopes