Neutron diffraction analysis of Roman coins from Hispania: methodological approach to compositional and minting characterization
We propose to perform a neutron diffraction study on Roman coins (Cu-Sn-bronze) selected from the August-Tiberian period emissions, as well as those of the Caligula's government; a crucial stage in the coinage production in the Iberian Peninsula. The objective of the analysis is to quantify the composition of the coin, without need to eliminate the historical patina, and to characterise the manufacturing process. Metal was worked in a forge, and beaten with a hammer or, in this case, a stamp, this causes the crystalline networks of the metals to be reoriented, generating a characteristic pattern called texture. Neutron analysis is non-destructive and provides essential data for numismatic research: bronze composition/contamination, state of conservation ( % Cuprite, Chalconatronite, Atacamite) and metallurgical data related to minting technology and manufacturing processes like whether the metal flans were hot-, cold-struck o even reheated after minted. Overall it will provide for the first time metallurgical information which in addition to classical stylistic criteria will constraint official and imitation mints during this period in Hispania.
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The recommended format for citing this dataset in a research publication is in the following format:
GOMEZ BARREIRO Juan; BARRIOS SANCHEZ Santos; COMPANA Jose Manuel; Morales, J.; NASSIF Vivian; PUENTE ORENCH Ines and Michele Zucali. (2021). Neutron diffraction analysis of Roman coins from Hispania: methodological approach to compositional and minting characterization. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-03-48
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