Determination of elemental concentrations in underwater LIBS plasmas using spectra simulation for copper-zinc alloys - datasetThe analysis of double-pulse LIBS plasmas is a promising technique for environmental neutral under-water material exploration. Since the required spectra analysis method or suitable calibration curves have barely been investigated for deep-sea applications, a method for spectra simulation and evaluation was developed, enabling evaluation of the elemental concentrations even at non-atmospheric conditions. For this, a method for spectra simulation and evaluation was created, containing the simulation of spectra resulting from multi-elemental plasmas, calculation of data sets with spectral characteristics for various plasma pressures, temperatures and elemental concentrations and the estimation of the plasma parameters and the elemental concentrations related to the measured spectra. The spectral data was measured with an Avantes compact spectrometer. The measured data is availible in internal format .RAW8 and as converted .txt files. Metadata of the parameters is availible in xml format. The simulated data of line intensities and widths was generated using Matlab and is stored in a .mat file. In addition the used atomic data is stored.

]]>deep-sea applicationsspectra simulationunder-water material explorationPlasma in Liquids66965c44-4f02-4f99-b02c-d1998bb1c5ad2025-12-04T00:00:00+01:002025-12-04T20:58:36+01:00enINP, LZHDetermination of elemental concentrations in underwater LIBS plasmas - measured spectraThe attached zip archive contains the measured spectra in internal raw signal format from Avantes (.RAW8) and converted format (.txt). In these files, the data columns (wavelength, signal, dark signal, reference) are separated by semicolons. The metadata file MetaData-MeasuredSpectra.xml contains the variable parameters of the measurement setup. The folders "Elemental concentration", "Energy dependence", and "Water pressure" contain the measured spectra with varying zinc concentration of the probe, varying laser pulse energy and varying water pressure, respectively. The remaining parameters are fixed each time, as can be seen in the metadata file for the measured data.

]]>2025-12-04T08:36:13+01:002025-12-04T20:56:10+01:00application/zipzip394871https://www.inptdat.de/dataset/determination-elemental-concentrations-underwater-libs-plasmas-using-spectra-simulation-0Determination of elemental concentrations in underwater LIBS plasmas - simulated spectraThe simulated data are available in the internal Matlab format (.mat, version R2023b) and in a converted format (.txt). Due to the data size, only extracted parameters (line intensity, line width, line ratio) are stored. The datasets are 3-dimensional, showing the dependence on temperature, pressure, and concentration (amount of zinc). Additionally, the atomic data used in the simulation (.DAT) are provided [1,2], along with an image (.png) indicating the parameter range within which the spectral analysis is reliable.

[1] R.L. Kurucz and B. Bell: Atomic Line Data, Cambridge, Mass.: Smithsonian Astrophysical Observatory, https://lweb.cfa.harvard.edu/amp/ampdata/kurucz23/sekur.html
[2] Kramida, A., Ralchenko, Yu., Reader, J. and NIST ASD Team (2022). NIST Atomic Spectra Database (version 5.10), National Institute of Standards and Technology, Gaithersburg, MD, https://www.nist.gov/pml/atomic-spectra-database

]]>2025-12-04T08:38:41+01:002025-12-04T20:56:10+01:00application/zipzip886124551https://www.inptdat.de/dataset/determination-elemental-concentrations-underwater-libs-plasmas-using-spectra-simulation-1DKANhttps://www.inptdat.de