Laser-Induced Breakdown Spectroscopy

Kim, Taesam; Lin, C. T.

doi:10.5772/48281

Cited by 5 publications

(9 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…ACCEPTED MANUSCRIPT 16 The resulting calibrated measurements for the mixed samples are shown in Fig. 12.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…LIBS has been used in a wide variety of applications for speciation of the ablated material [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…During the laser excitation, the material subjected to ablation is ionized and dissociated. After the laser excitation is stopped, excess energy is emitted as the atoms returns to their neutral states [16].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Contaminant identification during laser cleaning of thermal barrier coatings

Kim

Hawron

Hassan

et al. 2015

Surface and Coatings Technology

View full text Add to dashboard Cite

“…ACCEPTED MANUSCRIPT 16 The resulting calibrated measurements for the mixed samples are shown in Fig. 12.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…LIBS has been used in a wide variety of applications for speciation of the ablated material [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Contaminant identification during laser cleaning of thermal barrier coatings

Kim

Hawron

Hassan

et al. 2015

Surface and Coatings Technology

View full text Add to dashboard Cite

“…When the focused laser pulses are directed at the sample, it leads to the formation of plasma of an ionized matter [2][3][4]. The plasma emitted from the sample provides spectral signatures of the sample's compounds for all states of matter: solid, liquid and gaseous [5,6]. The libs system consists of a laser source, a sample, a spectrometer and a detector, and it may need a control and capture spectrum system [5,7].…”

Section: Introductionmentioning

confidence: 99%

“…The plasma emitted from the sample provides spectral signatures of the sample's compounds for all states of matter: solid, liquid and gaseous [5,6]. The libs system consists of a laser source, a sample, a spectrometer and a detector, and it may need a control and capture spectrum system [5,7]. The emission spectrum of the sample contains the spectra of the various elements that make up it.…”

Section: Introductionmentioning

confidence: 99%

Studying the Effect of Delay Time on Intensity of Laser Induced Breakdown Spectroscopy Technique Using Mas Cement Sample

Abdalgader¹,

Awadelgied²

2022

WJAP

View full text Add to dashboard Cite

Cement is a soft bond material that hardens and acquires its mechanical properties in the presence of water; it is an industrial product that has many uses, including its use in construction, roads, bridges, and others. It is important in our life to know its components. In this study, a laser-induced breakdown spectrometer was used to detect the elements present in a sample of Sudanese mas cement. In this technique, a high-energy laser is applied to the surface of the sample, ionizing the atoms of the material and then evaporating it, and then producing hot plasma on the surface of the sample, and this plasma is analyzed with a spectrometer, and thus the components of the sample can be known. The laser source used in this study is (Nd: YAG). Delay times are one of the factors affecting the intensity of the libs signal, To determine the relationship between laser delay times and LIBS signal intensity, a mas cement sample was irradiated with 32mj laser pulse energy and (200, 300, 400, 500, 600, 700, 800, 1000, 2000) nanoseconds delay times. We observed a decrease in the LIBS signal with increasing laser delay times. For quantitative analysis, the plasma temperature and electron density at (300, 500 and 700) laser delay times at 32mj laser pulse energy were calculated using standard equations and well-resolved spectral lines for Ca in the region of (422.67, 430.25 and 430.774) nm. It has been observed that when the delay time increases, the plasma temperature decreases and the electron density decrease. It was found that the density of electrons is directly proportional to the temperature of the plasma.

show abstract