Neutron activation analysis has contributed to research in Peru in different scientific fields, particularly in archaeometry. In archaeometry, applications include the characterization of copper alloy artefacts from the tomb of El Señor de Sican to determine production methods, ceramics from the Wari Culture to study production, and distribution of Middle Horizon pottery in Cuzco, ceramics from Villa El Salvador to determine production groups, and obsidian source analysis. © University of Oxford, 2007.