X-Ray Fluorescence and Laser-Induced Breakdown Spectroscopy analysis of Roman silver denarii

作者：Pardini L; El Hassan A; Ferretti M; Foresta A; Legnaioli S; Lorenzetti G; Nebbia E; Catalli F; Harith M A; Diaz Pace D; Anabitarte Garcia F; Scuotto M; Palleschi V^*

来源：Spectrochimica Acta Part B: Atomic Spectroscopy , 2012, 74-75: 156-161.

DOI：10.1016/j.sab.2012.06.016

• Spectroscopy
• LIBS
• XRF
• Archeometry
• Numismatics

In this paper we present the results of a study performed on a large collection of silver Roman republican denarii, encompassing about two centuries of history. The joint use of Laser-Induced Breakdown Spectroscopy (LIBS) and X-Ray Fluorescence (XRF) spectroscopy allowed for an accurate determination of the coins%26apos; elemental composition; the measurements, performed mostly in situ at the %26apos;Monetiere%26apos; in Florence, revealed a striking connection between the %26apos;quality%26apos; of the silver alloy and some crucial contemporary events. This finding was used to classify a group of denarii whose dating was otherwise impossible. The comparison with other contemporary denarii disproves a recent theory on the origin of the so called %26apos;serrated%26apos; denarii (denarii showing notched chisel marks on the edge of the coin).

• 出版日期2012-9