Modeling of time-resolved LIBS spectra obtained in Martian atmospheric conditions with a stationary plasma approach

Hansen, Peder Bagge; Schröder, Susanne; Kubitza, Simon; Rammelkamp, Kristin; Vogt, David; Hübers, Heinz‐Wilhelm

doi:10.1016/j.sab.2021.106115

Cited by 11 publications

(16 citation statements)

References 15 publications

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“…Most of them [14,35,36] were based on the simple scheme proposed by Hermann et al [5] that consists to describe the plasma by two uniform zones, representing the hot plasma core and the cold border, respectively. Based on the analytical solution of the radiation transfer equation, these aproaches take benefit from fast calculation.…”

Section: Ammended Methodsmentioning

confidence: 99%

“…Based on the analytical solution of the radiation transfer equation, these aproaches take benefit from fast calculation. Compared to the uniform case, the number of parameters is increased, rendering the automisation of the calibration-free LIBS measurements challenging [36].…”

Section: Ammended Methodsmentioning

confidence: 99%

“…Only a few calibration-free LIBS approaches consider plasma nonuniformity [14,15,35]. Their application is challenging because of the large number of parameters used to describe the emission from a nonuniform plasma [36].…”

Section: Spatial Distribution Of Plasmamentioning

confidence: 99%

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Calibration‐Free Laser‐Induced Breakdown Spectroscopy

Hermann

2023

Laser Induced Breakdown Spectroscopy (LIBS)

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Section: Ammended Methodsmentioning

confidence: 99%

Section: Ammended Methodsmentioning

confidence: 99%

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Calibration‐Free Laser‐Induced Breakdown Spectroscopy

Hermann

2023

Laser Induced Breakdown Spectroscopy (LIBS)

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“…Furthermore, spectra simulation is often associated to time-consuming calculations. The reason for this is that some authors combined spectra simulation with Monte-Carlo calculations to find the plasma parameters [59,60]. This is however not required for the simple case of the uniform LTE plasma for which the parameters can be found straightforwardly [43].…”

Section: General Remarksmentioning

confidence: 99%

Progress in calibration-free laser-induced breakdown spectroscopy

Hermann

Gerhard²,

Burger

et al. 2023

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…In the plasma state, the elements of a material exist as atoms and ions in excited states. As time elapses and the plasma cools, the excited atoms and ions return to the ground state, releasing radiation energy [3]. Figure 1 shows the changes in intensity of plasma energy and types of energy emitted from the plasma over time, from the moment of laser irradiation [4].…”

Section: Introductionmentioning

confidence: 99%

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

2021

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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.

show abstract

Modeling of time-resolved LIBS spectra obtained in Martian atmospheric conditions with a stationary plasma approach

Cited by 11 publications

References 15 publications

Calibration‐Free Laser‐Induced Breakdown Spectroscopy

Calibration‐Free Laser‐Induced Breakdown Spectroscopy

Progress in calibration-free laser-induced breakdown spectroscopy

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

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