Quantitative laser-induced breakdown spectroscopy of potassium for in-situ geochronology on Mars

Stipe, Christopher B.; Guevara, Edward; Brown, Jonathan; Rossman, George R.

doi:10.1016/j.sab.2012.04.010

Cited by 27 publications

(16 citation statements)

References 20 publications

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“…Several research groups have been developing in situ K-Ar geochronology techniques independently (Swindle et al, 2003;Cohen 2012;Stipe et al, 2012;Devismes et al, 2013;Solé, 2014;Farley et al, 2013). In particular, Cohen et al (2014) constructed K−Ar dating method called KArLE (K−Ar Laser Experiment) and reported isochron ages for rock samples using the breadboard model, however, the specific designs and analytical methods (e.g., spectrometer resolution, viewing geometry of laser-induced plasma, and calibration methods) in Cohen et al (2014) are different from ours.…”

Section: Introductionmentioning

confidence: 99%

An in-situ K–Ar isochron dating method for planetary landers using a spot-by-spot laser-ablation technique

Cho

Sugita

Miura

et al. 2016

Planetary and Space Science

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Section: Introductionmentioning

confidence: 99%

An in-situ K–Ar isochron dating method for planetary landers using a spot-by-spot laser-ablation technique

Cho

Sugita

Miura

et al. 2016

Planetary and Space Science

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“…It could be observed that the line of Zr at 339.20 nm was still visible at 4 mJ after five pulses and that it could not be seen after a few pulses at other energies. In some studies, the ablation depth of a single pulse could be deduced from the average value of the whole ablation depth after many pulses [12,14,21]. Ablation at 4 mJ and LFTSD 1 mm allowed an improvement in depth resolution of up to 8 nm per pulse in LIBS depth profiling, but more evidence was needed for it.…”

Section: B Effects Of Different Pulse Energiesmentioning

confidence: 99%

“…Laser-induced breakdown spectroscopy (LIBS), which was proposed in 1962 [4], is a versatile element analytical technique that is increasingly employed for scientific investigations and technical applications in a wide range of topical areas, such as soil [5], mineral [6], cultural relic [7], gas [8], steel [9], pharmaceutical [10], liquid [11], space exploration [12], etc. In 1996, it was demonstrated that LIBS is a useful technique to carry out surface analysis by studying a silicon solar cell [13].…”

Section: Introductionmentioning

confidence: 99%

Nanometer-film analysis by the laser-induced breakdown spectroscopy method: the effects of laser focus to sample distance

et al. 2015

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In order to develop a method to analyze metal elements in thin-film samples rapidly, directly and without sample preparation, and to understand the mechanism of laser-film interaction and plasma formation and evolution, a laboratory laser-induced breakdown spectroscopy system was established recently for nanometer-film analysis. ZrO(2) films prepared on silicon chips by a sol-gel process were employed in the following experiment and their thickness was about 40 nm. By the initial investigation that we carried out, the stability of this system was verified and the relative standard deviation of the target peak was found to be lower than 1.6% with the help of a position system. The influences of different experimental parameters, such as laser energy, laser focus to sample distance (LFTSD) settings, and gate delay, were studied under conditions of room temperature and atmospheric pressure. The experimental results show that the LFTSD was one of the most important parameters for plasma formation and spectral collection in comparison with other parameters by means of plasma spectra and images. So the effects of the LFTSD on the spectra, plasma evolution, and craters are specially discussed in this paper. At last, we calculated the plasma temperature and electron density under optimal parameters for quantitative analysis. The result shows that the established system is available for qualitative and quantitative analysis of films under conditions of single pulse and low ablation energy.

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“…However, the relative intensity of lines associated with different elements depends on a variety of natural and analytical factors (e.g., element ionisation potential, plasma temperature, spectrometer gate delay). Despite such complications, quantitative analysis is possible by LIBS and excellent precision and accuracy can be obtained using either an external calibration approach that utilises reference materials that are very closely matrix matched to the type of samples being analysed (e.g., Fabr e et al 2002, Stipe et al 2012 or through internal calibration techniques (Praher et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Geochemical Fingerprinting by Handheld Laser‐Induced Breakdown Spectroscopy

Harmon

Hark

Throckmorton

et al. 2017

Geostandard Geoanalytic Res

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A broad suite of geological materials was studied a using a handheld laser‐induced breakdown spectroscopy (LIBS) instrument. Because LIBS is simultaneously sensitive to all elements, the full broadband emission spectrum recorded from a single laser shot provides a ‘chemical fingerprint’ of any material – solid, liquid or gas. The distinguishing chemical characteristics of the samples analysed were identified through principal component analysis (PCA), which demonstrates how this technique for statistical analysis can be used to identify spectral differences between similar sample types based on minor and trace constituents. Partial least squares discriminant analysis (PLSDA) was used to distinguish and classify the materials, with excellent discrimination achieved for all sample types. This study illustrates through four examples (carbonate minerals and rocks, the oxide mineral pair columbite–tantalite, the silicate mineral garnet and native gold) how portable, handheld LIBS analysers can be used for real‐time chemical analysis under simulated field conditions for element or mineral identification, plus such applications as stratigraphic correlation, provenance determination and natural resource exploration.

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Quantitative laser-induced breakdown spectroscopy of potassium for in-situ geochronology on Mars

Cited by 27 publications

References 20 publications

An in-situ K–Ar isochron dating method for planetary landers using a spot-by-spot laser-ablation technique

An in-situ K–Ar isochron dating method for planetary landers using a spot-by-spot laser-ablation technique

Nanometer-film analysis by the laser-induced breakdown spectroscopy method: the effects of laser focus to sample distance

Geochemical Fingerprinting by Handheld Laser‐Induced Breakdown Spectroscopy

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