X-ray micro computed tomography-aided calibration of laser-induced breakdown spectroscopy depth profiling for archaeological ceramics examination

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F20%3APU137134" target="_blank" >RIV/00216305:26620/20:PU137134 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/20:00117250

Výsledek na webu

<a href="https://doi.org/10.1016/j.sab.2020.105965" target="_blank" >https://doi.org/10.1016/j.sab.2020.105965</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sab.2020.105965" target="_blank" >10.1016/j.sab.2020.105965</a>

Jazyk výsledku

angličtina

Název v původním jazyce

X-ray micro computed tomography-aided calibration of laser-induced breakdown spectroscopy depth profiling for archaeological ceramics examination

Popis výsledku v původním jazyce

The investigation of archaeological samples, such as ancient ceramics, provides more details about the past. In this work, we suggest a new approach for the calibration of a depth profiling of ceramic fragments with glazed layers. X-ray Micro Computed Tomography (μCT) serves as a calibration method for a depth-profile analysis using Laser-Induced Breakdown Spectroscopy (LIBS). In this case, μCT benefits from different contrasts of the glaze layer (containing lead) and the ceramic matrix (lead-free). Non-destructive μCT scans provide a dimensional analysis and a 3D observation of LIBS craters with a resolution at the micrometer level. The LIBS analysis combined with μCT enables a precise depth-wise calibration to the number of laser pulses. Moreover, a visualization of the ablation process allows observing the laser beam as it passes through the glaze, the interface and the ceramic matrix. The ablation rate determined using μCT scans enabled the differentiation of individual phases of the ablation process penetrating the surface layer. As each of these steps is characterized by a different ablation rate, a more precise calibration for the depth calculation is possible. Such an approach is unique and may be further used in a depth profile calibration regardless of the analyzed sample.

Název v anglickém jazyce

X-ray micro computed tomography-aided calibration of laser-induced breakdown spectroscopy depth profiling for archaeological ceramics examination

Popis výsledku anglicky

The investigation of archaeological samples, such as ancient ceramics, provides more details about the past. In this work, we suggest a new approach for the calibration of a depth profiling of ceramic fragments with glazed layers. X-ray Micro Computed Tomography (μCT) serves as a calibration method for a depth-profile analysis using Laser-Induced Breakdown Spectroscopy (LIBS). In this case, μCT benefits from different contrasts of the glaze layer (containing lead) and the ceramic matrix (lead-free). Non-destructive μCT scans provide a dimensional analysis and a 3D observation of LIBS craters with a resolution at the micrometer level. The LIBS analysis combined with μCT enables a precise depth-wise calibration to the number of laser pulses. Moreover, a visualization of the ablation process allows observing the laser beam as it passes through the glaze, the interface and the ceramic matrix. The ablation rate determined using μCT scans enabled the differentiation of individual phases of the ablation process penetrating the surface layer. As each of these steps is characterized by a different ablation rate, a more precise calibration for the depth calculation is possible. Such an approach is unique and may be further used in a depth profile calibration regardless of the analyzed sample.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20504 - Ceramics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Spectrochimica Acta Part B

ISSN

0584-8547

e-ISSN

—

Svazek periodika

172

Číslo periodika v rámci svazku

105965

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

000579495600003

EID výsledku v databázi Scopus

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