Detail publikace

Multivariate classification of echellograms: a new perspective in Laser-Induced Breakdown Spectroscopy analysis

Originální název

Multivariate classification of echellograms: a new perspective in Laser-Induced Breakdown Spectroscopy analysis

Anglický název

Multivariate classification of echellograms: a new perspective in Laser-Induced Breakdown Spectroscopy analysis

Jazyk

en

Originální abstrakt

In this work, we proposed a new data acquisition approach that significantly improves the repetition rates of Laser-Induced Breakdown Spectroscopy (LIBS) experiments, where high-end echelle spectrometers and intensified detectors are commonly used. The moderate repetition rates of recent LIBS systems are caused by the utilization of intensified detectors and their slow full frame (i.e. echellogram) readout speeds with consequent necessity for echellogram-to-1D spectrum conversion (intensity vs. wavelength). Therefore, we investigated a new methodology where only the most effective pixels of the echellogram were selected and directly used in the LIBS experiments. Such data processing resulted in significant variable down-selection (more than four orders of magnitude). Samples of 50 sedimentary ores samples (distributed in 13 ore types) were analyzed by LIBS system and then classified by linear and non-linear Multivariate Data Analysis algorithms. The utilization of selected pixels from an echellogram yielded increased classification accuracy compared to the utilization of common 1D spectra.

Anglický abstrakt

In this work, we proposed a new data acquisition approach that significantly improves the repetition rates of Laser-Induced Breakdown Spectroscopy (LIBS) experiments, where high-end echelle spectrometers and intensified detectors are commonly used. The moderate repetition rates of recent LIBS systems are caused by the utilization of intensified detectors and their slow full frame (i.e. echellogram) readout speeds with consequent necessity for echellogram-to-1D spectrum conversion (intensity vs. wavelength). Therefore, we investigated a new methodology where only the most effective pixels of the echellogram were selected and directly used in the LIBS experiments. Such data processing resulted in significant variable down-selection (more than four orders of magnitude). Samples of 50 sedimentary ores samples (distributed in 13 ore types) were analyzed by LIBS system and then classified by linear and non-linear Multivariate Data Analysis algorithms. The utilization of selected pixels from an echellogram yielded increased classification accuracy compared to the utilization of common 1D spectra.

Plný text v Digitální knihovně

BibTex


@article{BUT136910,
  author="Pavel {Pořízka} and Jakub {Klus} and Jan {Mašek} and Martin {Rajnoha} and David {Prochazka} and Pavlína {Modlitbová} and Jan {Novotný} and Radim {Burget} and Karel {Novotný} and Jozef {Kaiser}",
  title="Multivariate classification of echellograms: a new perspective in Laser-Induced Breakdown Spectroscopy analysis",
  annote="In this work, we proposed a new data acquisition approach that significantly improves the repetition rates of Laser-Induced Breakdown Spectroscopy (LIBS) experiments, where high-end echelle spectrometers and intensified detectors are commonly used. The moderate repetition rates of recent LIBS systems are caused by the utilization of intensified detectors and their slow full frame (i.e. echellogram) readout speeds with consequent necessity for echellogram-to-1D spectrum conversion (intensity vs. wavelength). Therefore, we investigated a new methodology where only the most effective pixels of the echellogram were selected and directly used in the LIBS experiments. Such data processing resulted in significant variable down-selection (more than four orders of magnitude). Samples of 50 sedimentary ores samples (distributed in 13 ore types) were analyzed by LIBS system and then classified by linear and non-linear Multivariate Data Analysis algorithms. The utilization of selected pixels from an echellogram yielded increased classification accuracy compared to the utilization of common 1D spectra.",
  address="Springer Nature",
  chapter="136910",
  doi="10.1038/s41598-017-03426-0",
  institution="Springer Nature",
  number="3160",
  volume="7",
  year="2017",
  month="december",
  pages="1--12",
  publisher="Springer Nature",
  type="journal article in Web of Science"
}