Sub-ns-pulsed laser cleaning of an archaeological bone from the Sierra de Atapuerca, Spain: a case study
| العنوان: | Sub-ns-pulsed laser cleaning of an archaeological bone from the Sierra de Atapuerca, Spain: a case study |
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| المؤلفون: | Nick Schiavon, José Miguel Carretero, Mª Pilar Alonso Abad, Evan Maina Maingi, Rémy Chapoulie, Luis A. Angurel, Rodrigo Alonso Alcalde, Germán F. de la Fuente, Md. Ashiqur Rahman |
| المساهمون: | European Commission, Gobierno de Aragón, Ministerio de Ciencia, Innovación y Universidades (España), European Research Council, Agencia Estatal de Investigación (España), Fundación Atapuerca, Junta de Castilla y León, CSIC-UZA - Instituto de Nanociencia y Materiales de Aragón (INMA), Universidad de Burgos |
| المصدر: | Zaguán. Repositorio Digital de la Universidad de Zaragoza instname SN Applied Sciences, Vol 3, Iss 12, Pp 1-14 (2021) Digital.CSIC. Repositorio Institucional del CSIC |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Technology, Materials science, Scanning electron microscope, Science, General Chemical Engineering, Cleaning, General Physics and Astronomy, Cultural Heritage, Substrate (electronics), law.invention, Optical microscope, X-ray photoelectron spectroscopy, law, General Materials Science, Irradiation, General Environmental Science, Archaeological bone, Near-infrared spectroscopy, General Engineering, Laser, Archaeology, Wavelength, Sub-ns laser, General Earth and Planetary Sciences, Sierra de Atapuerca |
| الوصف: | Controlled laser irradiation parameters using recently developed sub-nanosecond pulsed laser technology with emission wavelength in the near Infrared regime (1064 nm) have been assessed on a Pleistocene bone from the archaeological site of Sierra de Atapuerca, Spain. Burst pulse mode was employed to explore contaminant removal efficiency, while at the same time, assessing the degree of damage produced to the underlying original substrate surface. The surface morphology and composition of the deteriorated bone have been characterized, along with the effects of laser irradiation at 1064 nm, using Optical Microscopy (OM), Scanning Electron Microscopy–with Energy Dispersive X-ray Spectrometry (SEM–EDS), and X-ray Photoelectron Spectroscopy (XPS). The most effective laser cleaning parameters in burst mode have been identified in order to optimize the emission parameters of the laser, thus localizing its interaction within the outermost layers of contaminants and degradation products, avoiding damage to the underlying original bone surface. Hence, threshold cleaning and substrate damage values have been determined for this new sub-ns laser, paving the way to safer laser cleaning procedures that may be useful for the effective conservation of bone archaeological artifacts. Project supported by H2020-MSCA-ITN-EJD/ED-ARCHMAT action funding under the Marie Skłodowska-Curie grant agreement, no 766311. Partial support obtained from Departamento de Ciencia, Universidad y Sociedad del Conocimiento of Gobierno de Aragón “Construyendo Europa desde Aragón” (research group T54_20R). The Atapuerca research project is financed by Ministerio de Ciencia, Innovación y Universidades project PGC 2018-093925-B-C33. Fieldwork at the Atapuerca sites is funded by the Junta de Castilla y León and the Fundación Atapuerca. The fossil analysed in this work was 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; we acknowledge Professor Juan Luis Arsuaga for the permit to analyse 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. This work is part of the ongoing collaboration between INMA (CSIC-University of Zaragoza) and University of Burgos, under the auspices of Unidad Asociada de I+D+i al CSIC “Vidrio y Materiales del Patrimonio Cultural (VIMPAC)”. |
| وصف الملف: | application/pdf |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e8f6d5ec8d3b28fa0fa583802a796fb http://zaguan.unizar.es/record/111623 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....3e8f6d5ec8d3b28fa0fa583802a796fb |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |