Compositional Analysis of Polychromes by Laser-Induced Breakdown Spectroscopy

2008 ◽  
Vol 587-588 ◽  
pp. 657-661 ◽  
Author(s):  
Ana J. López ◽  
Mari Paz Mateo ◽  
Ana Santaclara ◽  
Armando Yáñez
Keyword(s):  
Nd:Yag Laser ◽  
Compositional Analysis ◽  
Laser Source ◽  
Laser Induced Breakdown Spectroscopy ◽  
Depth Profiles ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

This study deals with the analysis and characterization of wood polychromes by means of Laser-Induced Breakdown Spectroscopy (LIBS). Specimens from a Baroque altarpiece have been analyzed by using a Q-switched Nd:YAG laser source at the wavelength of 355 nm. Previously, a library of characteristic LIBS spectra of the most commonly used pigments and other materials involved was obtained. The knowledge of these spectra allowed us to identify the main constituents of the different layers in polychromes and to obtain compositional depth profiles.

Characterization of Amethysts from Sukamara, Central Kalimantan, Using Laser-Induced Breakdown Spectroscopy (LIBS)

2020 ◽  
Vol 1 (2) ◽  
pp. 5-8
Author(s):  
Komang Gde Suastika, Heri Suyanto, Gunarjo, Sadiana, Darmaji
Keyword(s):  
Emission Intensity ◽  
Laser Energy ◽  
Emission Spectra ◽  
Atomic Emission ◽  
Laser Induced Breakdown Spectroscopy ◽  
Chemical Formula ◽  
Central Kalimantan ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Abstract - Laser-Induced Breakdown Spectroscopy (LIBS) is one method of atomic emission spectroscopy using laser ablation as an energy source. This method is used to characterize the type of amethysts that originally come from Sukamara, Central Kalimantan. The result of amethyst characterization can be used as a reference for claiming the natural wealth of the amethyst. The amethyst samples are directly taken from the amethyst mining field in the District Gem Amethyst and consist of four color variations: white, black, yellow, and purple. These samples were analyzed by LIBS, using laser energy of 120 mJ, delay time detection of 2 μs and accumulation of 3, with and without cleaning. The purpose of this study is to determine emission spectra characteristics, contained elements, and physical characteristics of each amethyst sample. The spectra show that the amethyst samples contain some elements such as Al, Ca, K, Fe, Gd, Ba, Si, Be, H, O, N, Cl and Pu with various emission intensities. The value of emission intensity corresponds to concentration of element in the sample. Hence, the characteristics of the amethysts are based on their concentration value. The element with the highest concentration in all samples is Si, which is related to the chemical formula of SiO2. The element with the lowest concentration in all samples is Ca that is found in black and yellow amethysts. The emission intensity of Fe element can distinguish between white, purple, and yellow amethyst. If Fe emission intensity is very low, it indicates yellow sample. Thus, we may conclude that LIBS is a method that can be used to characterize the amethyst samples.Key words: amethyst, impurity, laser-induced, breakdown spectroscopy, characteristic, gemstones

Characterization of Hygroscopic Insulator Contamination via Laser-Induced Breakdown Spectroscopy

2021 ◽  
Vol 49 (3) ◽  
pp. 1166-1172
Author(s):  
Xinran Qin ◽  
Fuzeng Zhang ◽  
Shaojie Chen ◽  
Tingting Wang ◽  
Xiao Hong ◽  
...  
Keyword(s):  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Characterization of ion irradiated silicon surfaces ablated by laser-induced breakdown spectroscopy

2018 ◽  
Vol 27 (8) ◽  
pp. 087401 ◽  
Author(s):  
T Iqbal ◽  
M Abrar ◽  
M B Tahir ◽  
M Seemab ◽  
A Majid ◽  
...  
Keyword(s):  
Silicon Surfaces ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

scholarly journals Compact diode-pumped Nd:YAG laser for remote analysis of low-alloy steels by laser-induced breakdown spectroscopy

2018 ◽  
Vol 33 (2) ◽  
pp. 294-303 ◽  
Author(s):  
V. N. Lednev ◽  
A. E. Dormidonov ◽  
P. A. Sdvizhenskii ◽  
M. Ya Grishin ◽  
A. N. Fedorov ◽  
...  
Keyword(s):  
Nd:Yag Laser ◽  
Laser Induced Breakdown Spectroscopy ◽  
Low Alloy Steels ◽  
Breakdown Spectroscopy ◽  
Low Weight ◽  
Laser Induced Breakdown ◽  
Alloy Steels ◽  
Diode Pumped ◽  
Remote Analysis ◽  
Diode Pumped Nd:Yag Laser

A low weight diode-pumped Nd:YAG laser (400 g, 1064 nm, 5 ns, 130 mJ per pulse) was developed for a compact laser-induced breakdown spectroscopy (LIBS) system to be installed on a robotized arm.

LIBS for the Analysis of Metallurgical and Solar Grade Silicon

2011 ◽  
Vol 324 ◽  
pp. 324-327 ◽  
Author(s):  
Sarah Darwiche ◽  
Malek Benmansour ◽  
Nir Eliezer ◽  
Daniel Morvan
Keyword(s):  
Chemical Characterization ◽  
Laser Induced Breakdown Spectroscopy ◽  
Solar Grade Silicon ◽  
Photovoltaic Panels ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Elemental Chemical Analysis ◽  
Boron Analysis ◽  
Grade Silicon

Laser-induced breakdown spectroscopy (LIBS) has been employed for the fast and reliable chemical characterization of silicon used for the photovoltaic industry. Silicon for photovoltaic panels is subject to certain constraints on its purity, and notably must contain low concentration of boron. The use of LIBS could be advantageous because it allows rapid and simultaneous multi-elemental chemical analysis of silicon without any sample preparation. LIBS was applied to boron analysis and a detection limit of 0.23 ppmw was found for optimized gas and pressure conditions.

scholarly journals Компактная лазерная система для дистанционных измерений методом лазерно-искровой эмиссионной спектроскопии на основе Nd : YAG-лазера с самообращением волнового фронта

2019 ◽  
Vol 45 (9) ◽  
pp. 13
Author(s):  
В.Ф. Лебедев ◽  
К.В. Павлов ◽  
Г.В. Бурковский ◽  
А.В. Федин
Keyword(s):  
Nd:Yag Laser ◽  
Phase Conjugation ◽  
Laser System ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Remote Analysis

Compact laser system based on Nd:YAG-laser with self-phase conjugation for remote analysis of substances at least ten meters distance by the Laser-Induced Breakdown Spectroscopy was proposed.

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