omarun / libs

Analysis codes for Laser-Induced Breakdown Spectroscopy data

LIBS

Analysis codes for Laser-Induced Breakdown Spectroscopy data

Temperature

Utilizes Boltzmann method to estimate plasma excitation temperature.

temperature.py: calculates temperature using one spectra for a series of delays, useful for initial experiment. | Temperature

Calculations.py: calculates average temperature for a series of delays with multiple trials, as well as different energies/pulse types and compares them on one figure with error propogation.

Electron Density

Utilizes Stark broadening method with Voigt fitting to estimate plasma electron number density

Voigt.py: uses lmfit library to calculate Lorentzian FWHM, associated error, and R^2 of fit for individual spectra

edTest.py: calculates FWHM and electron density using one spectra for a series of delays, with ability to tune window size used in Voigt fitting

Electron Density.py: calculates average electron density for a series of delays with multiple trials, as well as different energies/pulse types and compares them on one figure with error propogation

fwhm_to_ED.py: calculates electron density from stark impact parameter (including temperature dependence if available) form FWHM values

Plasma Persistence

Figures generated for multiple energies/pulse types using contour maps with signal-to-noise ratio as scale