scholarly journals Development and performance evaluation of self-absorption-free laser-induced breakdown spectroscopy for directly capturing optically thin spectral line and realizing accurate chemical composition measurements

2017 ◽  
Vol 25 (19) ◽  
pp. 23024 ◽  
Author(s):  
Jiajia Hou ◽  
Lei Zhang ◽  
Wangbao Yin ◽  
Shunchun Yao ◽  
Yang Zhao ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Chemical Composition ◽  
Spectral Line ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
And Performance ◽  
Accurate Chemical Composition ◽  
Composition Measurements

Laser-induced breakdown spectroscopy (LIBS) technique for the determination of the chemical composition of complex inorganic materials

2014 ◽  
Author(s):  
Łukasz Łazarek ◽  
Arkadiusz J. Antończak ◽  
Michał R. Wójcik ◽  
Paweł E. Kozioł ◽  
Bogusz Stępak ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Inorganic Materials ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Analysis of relative standard deviation of spectral line intensity and intensity ratio in laser-induced breakdown spectroscopy using CuIn1−xGaxSe2 thin film samples

2015 ◽  
Vol 30 (10) ◽  
pp. 2107-2119 ◽  
Author(s):  
Jung-Hwan In ◽  
Chan-Kyu Kim ◽  
Sungho Jeong
Keyword(s):  
Thin Film ◽  
Standard Deviation ◽  
Spectral Line ◽  
Line Intensity ◽  
Laser Induced Breakdown Spectroscopy ◽  
Spectral Line Intensity ◽  
Breakdown Spectroscopy ◽  
Relative Standard ◽  
Laser Induced Breakdown ◽  
Fluctuation Noise

The precision of laser induced breakdown spectroscopy (LIBS) measurement is analyzed in consideration of both the shot noise of the detector and the shot-to-shot fluctuation noise of the laser plasma.

scholarly journals Analysis of Changes in Spectral Signal According to Gas Flow Rate in Laser-Induced Breakdown Spectroscopy

2021 ◽  
Vol 11 (19) ◽  
pp. 9046
Author(s):  
Sangwoo Yoon ◽  
Hae-Woon Choi ◽  
Joohan Kim
Keyword(s):  
Spectral Line ◽  
Flow Rate ◽  
Gas Flow ◽  
Laser Induced Breakdown Spectroscopy ◽  
Material Surface ◽  
View Factor ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Special Environment ◽  
Confined Environment

In a laser-induced breakdown spectroscopy (LIBS) system that performs elemental analysis of a target by acquiring the emission of plasma generated on the material surface by a focused laser, the plasma signal may be affected by the flow of the surrounding gas. A flow of gas may be present when LIBS measurements are performed in a special environment where an inert gas is normally applied. In such an environment, the flow of gas may affect the intensity of emission generated in plasma. The LIBS spectral intensity in the gas flow field changes according to the direction of the gas flow and the signal detector of the LIBS. In this case, the correlation between the flow rate and intensity of the spectral line can be confirmed both theoretically and experimentally. In this study, changes in the signal according to the flow rate were theoretically evaluated using the view factor and wave equation. In addition, LIBS signals were examined based on the flow of Ar, N2, and He gases in the experiment. The experimental results confirmed the range of effective gas flow rates over which the correlation between the flow rate and intensity of the LIBS spectral line could be inferred. These results could be used for calibration to achieve accurate measurement of LIBS signals in gas flow fields. In addition, this analysis has the potential to shed light on the properties of flowing gases that affect plasma by reversibly tracking changes in the signal of LIBS in a confined environment.

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