A multi-technique investigation of the incuse coinage of Magna Graecia

A Neutron Tomographic Analysis of Plated Silver Coins from Ancient Greece Official or Illegal?

“…Complementary investigation on the High Resolution Powder Diffractometer ECHIDNA [15] at ANSTO confirmed the presence of copper and silver by obtaining full diffraction patterns. No evidence of any other metal constituents, including low temperature melts that could have acted as soft soldering materials, were identified in the diffraction pattern [5]. A low amount (0.1 vol.…”

“…This analysis is part of a broader program of investigation that includes neutron diffraction, neutron texture analysis, and SEM-EDS analyses. The study is still in progress; here we present a selection of interesting results based on neutron tomographic analysis and refer the reader to other publications for more a detailed coverage of earlier research [5] [6].…”

Time-of-Flight Neutron Diffraction (TOF-ND) Analyses of the Composition and Minting of Ancient Judaean “Biblical” Coins

“…Salvemini et al [ 17 ] recently used the maximum minus the minimum in the texture coefficients (a Δ texture) from a variety of ancient, struck silver coins to infer which coins were struck while hot. Although the different coin shapes required correction for absorption differences, they argued that coins with little or no texture were struck hot (ca.…”

“…However, previous studies using ND for the most common ancient coinage alloys, copper-tin and leaded copper-tin (Pb-Cu-Sn) bronzes, appear to have been limited to a total of 20 late Roman coins [ 14 – 16 ]. To our knowledge, only one study has used ND analyses to infer whether ancient coins were struck while the metal was hot, and that was using silver coins [ 17 ]. Hot striking offers advantages in terms of the hammer force needed to produce an image, but it also affects the rate of coin production.…”

Micro‐XRF analysis of silver decorations on Archaic helmets from Olympia

“…Neutron diffraction, neutron texture analysis and neutron tomography were recently used to gain information concerning the manufacture of early silver coins (Salvemini et al . 2018).…”