2019
Influence of laser wavelength and laser energy on depth profiling of easel painting samples
POSPÍŠILOVÁ, Eva; Karel NOVOTNÝ; Pavel POŘÍZKA; Janka HRADILOVÁ; Jozef KAISER et al.Základní údaje
Originální název
Influence of laser wavelength and laser energy on depth profiling of easel painting samples
Autoři
POSPÍŠILOVÁ, Eva; Karel NOVOTNÝ; Pavel POŘÍZKA; Janka HRADILOVÁ; Jozef KAISER a Viktor KANICKÝ
Vydání
Chemical Papers, SPRINGER INTERNATIONAL PUBLISHING AG, 2019, 0366-6352
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10406 Analytical chemistry
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 1.680
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/19:00113153
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
LIBS; Ablation craters; Fluorine detection
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 11. 5. 2020 17:55, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
The depth-resolved analysis by means of the laser-induced breakdown spectroscopy (LIBS) is a useful tool in the investigation of multi-layered structures of paintings. The LIBS technique is considered micro-destructive, as it is associated with the formation of the ablation crater. It is important to optimize the laser pulse parameters to minimize the crater size and also to avoid some possible side effects of the laser radiation, such as the material redeposition and the light- or heat-induced pigment discoloration. In the present work, mock-up painting samples were used to investigate the influence of laser radiation characteristics on the ablation process. The first LIBS set-up contains a Nd:YAG laser at the second harmonic frequency (laser wavelength 532 nm, pulse duration ~ 10 ns) and the second set-up is comprised of a modified laser-ablation system equipped with a Nd:YAG laser at the fourth harmonic frequency (laser wavelength 266 nm, pulse duration ~ 5 ns). The influence of different laser wavelengths and different laser energies on the properties of the craters was examined. The effects caused by the laser-ablation process were described.
Návaznosti
| LQ1601, projekt VaV |
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| MUNI/A/1288/2017, interní kód MU |
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