The effect of sample temperature on the emission line intensification mechanisms in orthogonal double-pulse Laser Induced Breakdown Spectroscopy

Sanginés, R.; Sobral, H.; Álvarez‐Zauco, Edgar

doi:10.1016/j.sab.2012.01.011

Cited by 51 publications

(33 citation statements)

References 37 publications

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“…In this situation, the amount of vaporized material available for excitation also increases, leading to the higher amplitude of the characteristic peaks. This result is similar to that reported by [17] for Al samples.…”

Section: -3supporting

confidence: 93%

“…To our knowledge, this study is the first research about the effect of cooling samples on LIBS spectrum, especially on super alloys. The results showed increasing the sample temperature leads to improvement in the intensity of spectral lines as shown in other works [17,18]. Increase in ablation rate can be the reason for this behavior.…”

Section: Resultssupporting

confidence: 71%

“…The effects of sample temperature on LIBS signals for stainless steel samples are shown in [16]. Sangines et al [17] studied the effect of sample temperature on the emission line intensification mechanisms in orthogonal dual-pulse LIBS. The effect of sample temperature and physical state on LIBS spectra of molten and solid salts has been investigated in [18].…”

Section: Introductionmentioning

confidence: 99%

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Temperature effect on the optical emission intensity in laser induced breakdown spectroscopy of super alloys

Darbani

Ghezelbash

Majd

et al. 2014

J. Eur. Opt. Soc.-Rapid Publ.

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In this paper, the influence of heating and cooling samples on the optical emission spectra and plasma parameters of laser-induced breakdown spectroscopy for Titanium 64, Inconel 718 super alloys, and Aluminum 6061 alloy is investigated. Samples are uniformly heated up to approximately 200°C and cooled down to -78°C by an external heater and liquid nitrogen, respectively. Variations of plasma parameters like electron temperature and electron density with sample temperature are determined by using Boltzmann plot and Stark broadening methods, respectively. Heating the samples improves LIBS signal strength and broadens the width of the spectrum. On the other hand, cooling alloys causes fluctuations in the LIBS signal and decrease it to some extent, and some of the spectral peaks diminish. In addition, our results show that electron temperature and electron density depend on the sample temperature variations.

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Section: -3supporting

confidence: 93%

Section: Resultssupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Temperature effect on the optical emission intensity in laser induced breakdown spectroscopy of super alloys

Darbani

Ghezelbash

Majd

et al. 2014

J. Eur. Opt. Soc.-Rapid Publ.

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“…As shown in Fig. 2, the plasma plumes are always larger and brighter in the flame, which is primarily due to the fact that the plasmas have larger expansion rate in a hotter environment [18,19]. Another factor contributed to this is the higher ablation rate caused by the higher sample temperature due to the flame heating [20,21].…”

Section: Fast Imaging and Temporally Resolved Spectroscopy Of Plasmasmentioning

confidence: 86%

“…A minor factor is the larger ablation rate caused by the higher sample temperature due to the flame heating [19][20][21]. The shorter plasma lifetime is caused by the enhancement of energy transfer due to the increased collision among particles with the presence of the flame [22,23].…”

Section: Fast Imaging and Temporally Resolved Spectroscopy Of Plasmasmentioning

confidence: 99%

Flame-enhanced laser-induced breakdown spectroscopy

Liu¹,

Li²,

He³

et al. 2014

Opt. Express

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Liu, L.; Li, S.; He, X. N.; Huang, X.; Zhang, C. F.; Fan, L. S.; Wang, M. X.; Zhou, Y. S.; Chen, K.; Jiang, L.; Silvain, J. F.; and Lu, Yongfeng, "Flame-enhanced laser-induced breakdown spectroscopy" (2014 Abstract: Flame-enhanced laser-induced breakdown spectroscopy (LIBS) was investigated to improve the sensitivity of LIBS. It was realized by generating laser-induced plasmas in the blue outer envelope of a neutral oxy-acetylene flame. Fast imaging and temporally resolved spectroscopy of the plasmas were carried out. Enhanced intensity of up to 4 times and narrowed full width at half maximum (FWHM) down to 60% for emission lines were observed. Electron temperatures and densities were calculated to investigate the flame effects on plasma evolution. These calculated electron temperatures and densities showed that high-temperature and low-density plasmas were achieved before 4 µs in the flame environment, which has the potential to improve LIBS sensitivity and spectral resolution.

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Analysis of the trace elements in micro-alloy steel by reheating double-pulse laser-induced breakdown spectroscopy

Wang

et al. 2017

Appl. Phys. B

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The effect of sample temperature on the emission line intensification mechanisms in orthogonal double-pulse Laser Induced Breakdown Spectroscopy

Cited by 51 publications

References 37 publications

Temperature effect on the optical emission intensity in laser induced breakdown spectroscopy of super alloys

Temperature effect on the optical emission intensity in laser induced breakdown spectroscopy of super alloys

Flame-enhanced laser-induced breakdown spectroscopy

Analysis of the trace elements in micro-alloy steel by reheating double-pulse laser-induced breakdown spectroscopy

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