Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloMicro-Laser-Induced Breakdown Spectroscopy (Micro-LIBS) Study on Ancient Roman Mortars
Anno di pubblicazione2017
Autore/iPagnotta S.; Lezzerini M.; Ripoll-Seguer L.; Hidalgo M.; Grifoni E.; Legnaioli S.; Lorenzetti G.; Poggialini F.; Palleschi V.
Affiliazioni autoriApplied and Laser Spectroscopy Laboratory, Institute of Chemistry of Organometallic Compounds, Research Area of National Research Council, Via G. Moruzzi, 1, Pisa, 56124, , Italy; Department of Earth Sciences, University of Pisa, Pisa, , Italy; Department of Analytical Chemistry and Food Science, University of Alicante, Alicante, , Spain; National Interuniversity Consortium of Materials Science and Technology (INSTM), , Italy
Autori CNR e affiliazioni
  • inglese
AbstractThe laser-induced breakdown spectroscopy (LIBS) technique was used for analyzing the composition of an ancient Roman mortar (5th century A.D.), exploiting an experimental setup which allows the determination of the compositions of binder and aggregate in few minutes, without the need for sample treatment. Four thousand LIBS spectra were acquired from an area of 10 mm2, with a 50 µm lateral resolution. The elements of interest in the mortar sample (H, C, O, Na, Mg, Al, Si, K, Ca, Ti, Mn, Fe) were detected and mapped. The collected data graphically shown as compositional images were interpreted using different statistical approaches for the determination of the chemical composition of the binder and aggregate fraction. The methods of false color imaging, blind separation, and self-organizing maps were applied and their results are discussed in this paper. In particular, the method based on the use of self-organizing maps gives well interpretable results in very short times, without any reduction in the dimensionality of the system.
Lingua abstractinglese
Altro abstract-
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Pagine da721
Pagine a727
Pagine totali-
RivistaApplied spectroscopy
Attiva dal 1951
Editore: Society for Applied Spectroscopy. - [Baltimore, Md.]
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 0003-7028
Titolo chiave: Applied spectroscopy
Titolo proprio: Applied spectroscopy.
Titolo abbreviato: Appl. spectrosc.
Numero volume della rivista71
Fascicolo della rivista4
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)
  • Scopus (Codice:2-s2.0-85019009048)
Parole chiaveaggregate, artificial neural networks, binder, blind separation techniques, Laser-induced breakdown spectroscopy, LIBS, mortars, self-organizing maps
Link (URL, URI)
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Strutture CNR
  • ICCOM — Istituto di chimica dei composti organo metallici
Moduli/Attività/Sottoprogetti CNR-
Progetti Europei-