Showing papers by "Hungarian National Museum published in 2000"
01 Mar 2000-Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms
TL;DR: In this article, ancient silver coins (drachms) issued by the Greek city Dyrrhachium during 68-43 years BC were analyzed non-destructively by micro-PIXE method.
Abstract: Ancient silver coins (drachms) issued by the Greek city Dyrrhachium during 68–43 years BC were analysed non-destructively by micro-PIXE method. The selected 27 drachms, including four imitations, belong to the numismatic collection of the Hungarian National Museum (HNM). Nine elements (Fe, Cu, Zn, Br, Ag, Sn, Au, Pb and Bi) were determined quantitatively. Samples are characterised with a uniformly low ∼92% Ag concentration. Debasement is supposed.
22 citations
01 Oct 2000-Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms
TL;DR: A very important raw material of the prehistoric age, radiolarite was investigated in this article, where samples from geological and archaeological sites of the Carpathian basin, Greece and Austria were analyzed by ion beam methods.
Abstract: A very important raw material of the prehistoric age, radiolarite was investigated in this work. Samples from geological and archaeological sites of the Carpathian basin, Greece and Austria were analyzed by ion beam methods, namely proton-induced gamma-ray emission (PIGE) and proton-induced X-ray emission (PIXE) techniques. Our aim was to study to what extent we are able to classify the specimens with various macroscopical features and different source areas. In order to answer this question, a cluster analysis was carried out on the concentration data set deduced from the analysis. Correlations between the elemental compositions and the source regions are established.
10 citations