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dc.contributor.authorRahman, Md. Ashiqur
dc.contributor.authorFuente Leis, Germán F. de la
dc.contributor.authorCarretero Díaz, José Miguel 
dc.contributor.authorAlonso Abad, Mª Pilar 
dc.contributor.authorAlonso Alcalde, Rodrigo 
dc.contributor.authorChapoulie, Rémy
dc.contributor.authorSchiavon, Nick
dc.contributor.authorAngurel Lámban, Luis Alberto
dc.date.accessioned2023-11-03T08:06:06Z
dc.date.available2023-11-03T08:06:06Z
dc.date.issued2023-02
dc.identifier.urihttp://hdl.handle.net/10259/7926
dc.description.abstractThe impact of wavelength and pulse duration in laser cleaning of hard blackish contaminants crust from archaeologically significant Pleistocene bone is investigated in this research. The objective is to determine the practical cleaning procedures and identify adequate laser parameters for cleaning archaeological bone from Sima de los Huesos (Spain) based on conservation and restoration perspectives. Bone surface cleaning was performed utilizing two Q-switched Nd:YAG lasers: subnanosecond pulsed lasers with emission wavelengths at 355 nm and 1064 nm, respectively, and a Yb:KGW femtosecond pulsed laser with an emission wavelength in the third harmonic at 343 nm. In all experiments, the laser beam scanning mode was applied to measure cleaning efficiency in removing contaminants and degradation products while assessing the underlying substrate surface damage. Several properties, including wavelength-dependent absorption, pulse repetition rate, and thermal properties of the material, are analyzed when evaluating the ability of these lasers to boost the cleaning efficiency of the deteriorated bone surface. Bone surface morphology and composition were studied and compared before and after laser irradiation, using Optical Microscopy, Scanning Electron Microscopy with Energy Dispersive X-ray Spectrometry (SEM-EDS), Fourier Transform Infrared Spectroscopy (FTIR), and X-ray Photoelectron Spectroscopy (XPS) characterization methods. The results indicate that 238-femtosecond UV laser irradiation with 2.37 TWcm−2 is significantly safer and more efficient toward surface contaminant desorption than sub-nanosecond laser irradiation. The results herein presented suggest that these types of fs lasers may be considered for realistic laser conservation of valuable historic and archaeological museum artifacts.en
dc.description.sponsorshipThis research was funded by the H2020-MSCA-ITN-EJD/ED-ARCHMAT action funding under the Marie Skłodowska-Curie grant agreement, No 766311. The Atapuerca research project is financed by Ministerio de Ciencia, Innovación y Universidades, grant no. PID2021-122355NB-C31/MCIN/AEI/10.13039/501100011033/ FED ER.UE. Fieldwork at the Atapuerca sites is funded by the Junta de Castilla y León and the Fundación Atapuerca. The archaeological materials presented in this work were made available by the Laboratory of Human Evolution of the University of Burgos, in close collaboration with the “Colección Museística de Castilla y León” of the Junta de Castilla y León, and Museo de la Evolución Humana (Burgos); we acknowledge Juan Luis Arsuaga for the permit to analyze the sample. The use of Servicio General de Apoyo a la Investigación and the National Facility ELECMI ICTS, node “Laboratorio de Microscopías Avanzadas” at the University of Zaragoza is acknowledged. Partial support was obtained from Departamento de Ciencia, Universidad y Sociedad del Conocimiento of Gobierno de Aragón “Construyendo Europa desde Aragón” (research group T54_20R). This work is part of the ongoing collaboration between INMA (CSIC-University of Zaragoza) and the University of Burgos, under the auspices of Unidad Asociada de I+D+I al CSIC “Vidrio y Materiales del Patrimonio Cultural (VIMPAC)”.en
dc.language.isoenges
dc.publisherMDPIes
dc.relation.ispartofHeritage. 2023, V. 6, n. 3, p. 2503-2519es
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectFemtosecond laseren
dc.subjectSub-nanosecond laseren
dc.subjectCleaningen
dc.subjectPulse durationen
dc.subjectWavelengthen
dc.subjectArchaeological boneen
dc.subjectSima de los Huesoses
dc.subject.otherTecnologíaes
dc.subject.otherTechnologyen
dc.subject.otherPaleontologíaes
dc.subject.otherPaleontologyen
dc.subject.otherArqueología-Burgoses
dc.subject.otherArchaeology-Burgosen
dc.titleUltra-Short Pulse Laser Cleaning of Contaminated Pleistocene Bone: A Comprehensive Study on the Influence of Pulse Duration and Wavelengthen
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.3390/heritage6030132es
dc.identifier.doi10.3390/heritage6030132
dc.identifier.essn2571-9408
dc.journal.titleHeritageen
dc.volume.number6es
dc.issue.number3es
dc.page.initial2503es
dc.page.final2519es
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones


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