2026/07/28 by Aleksandr Murmantsev, A. Murmantsev, Anatoly Veklich +2
Engineering · Physics and Astronomy · #Laser-induced spectroscopy and plasma #Plasma Diagnostics and Applications #Vacuum and Plasma Arcs
paper · doi:10.1088/1361-6587/ae918c
openalex publication_date 2026/07/28 · openalex created_date 2026/07/29 · openalex updated_date 2026/07/30
Abstract The work is devoted to the development of an automated software pipeline for diagnostics of spatially inhomogeneous and temporally non-stationary plasma with axial symmetry. The method is based on the processing of 2D arrays of RGB images of emission with spectral and spatial resolution. Special attention was paid to the full automation of the preparatory stages of the calculation: identification of the spatial center, determination of the boundary radius of spectral line and verification of the axial symmetry of the plasma column. The reconstruction of local values of absolute emission is carried out by the inverse Abel transform using the Bockasten method. The final radial distributions of the excitation temperature and the number density of emitting species are calculated by the Boltzmann plots technique based on the absolute intensities of spectral lines. The validation of the developed algorithm was carried out by comparing the results with the data of manual processing of electric arc discharge spectra.