Using Boltzmann Plots Method to Calculate Plasma Parameters Generated from a Magnesium Target Using Optical Emission Spectroscopy Technique

Abstract

The laser-generated plasma was characterized using laser-induced breakdown spectroscopy after fundamental radiation from a Nd:YAG laser with an energy range of 300–500[Formula: see text]mJ was focused onto a magnesium target. Using magnesium emission lines and Boltzmann plots, the plasma parameters were computed based on experimental data. The plasma electron temperature varied between (2.36–3.12) eV as a function of laser energy, while the density of electrons varied between (1.02–1.49[Formula: see text][Formula: see text]cm3 at ([Formula: see text][Formula: see text]nm). These values grew as laser irradiation increased, albeit at varied rates depending on the wavelength.

Influence of pulse laser energy on the Nickel plasma characteristics that produced in laser-induced plasma system

“…The radiation spectrum of Ni plasma at wavelengths ranging from 200 nm to 1000 nm is depicted in Fig 2 . Several nickel emission lines (such as Ni I at 286.55 nm,366.40 nm,385.83 nm,440.15 nm,446.24 nm,460.5 nm,471.57 nm,485.54 nm,508.40 nm,and 547.08 nm, among others) are superimposed over continuous background radiation. This result can be explained according to Singh 14 , if sufficiently high energy applied to the atom (overcoming ionization potential) is available, the atom's electrons can be separated from its atom, which creates free electrons and positive ions. The atom's electrons separate is the most external (the most distant in relation to the nucleus) since it has the lowest ionization energy.…”