Suitability of transportable EDXRF for the on-site assessment of ancient silver coins and other silver artifacts

Journal article

Gore, Damian B. and Davis, Gillan. (2016). Suitability of transportable EDXRF for the on-site assessment of ancient silver coins and other silver artifacts. Applied Spectroscopy Reviews. 70(5), pp. 840-851. https://doi.org/10.1177/0003702816638283
AuthorsGore, Damian B. and Davis, Gillan
Abstract

Transportable energy dispersive X-ray fluorescence (XRF) spectrometers allow the elemental composition of coins to be measured at collections, enhancing security while maximizing access to historically important material. We assessed 10 silver coins, using five XRF spectrometers. We found no systematic differences between analyses using Mo- and Rh-anode tubes, and no substantial advantage using He flush over air for elements heavier than Ti. Higher voltage X-ray tubes enhanced analytical precision. Understanding patina composition made a numerical correction possible, allowing an approximation of the underlying coin metal with good results for metals including Cu, Ag, Au, Pb, and Bi.

KeywordsX-ray fluorescence spectrometry; elemental analysis; numismatics; patina; ancient history
Year2016
JournalApplied Spectroscopy Reviews
Journal citation70 (5), pp. 840-851
PublisherSAGE Publications Inc.
ISSN0003-7028
Digital Object Identifier (DOI)https://doi.org/10.1177/0003702816638283
Scopus EID2-s2.0-84966769731
Research or scholarlyResearch
Page range840-851
FunderAustralian Research Council (ARC)
Publisher's version
License
All rights reserved
File Access Level
Controlled
Output statusPublished
Publication dates
Online04 Apr 2016
Publication process dates
Accepted28 Dec 2015
Deposited24 Nov 2021
ARC Funded ResearchThis output has been funded, wholly or partially, under the Australian Research Council Act 2001
Grant IDARC/DP120103519
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