Characteristics of Calcium Plasma Parameters by Laser-Induced Breakdown Spectroscopy Technique

Abstract

In this work, the effect of laser energy on the properties of a calcium plasma generated by a Q-switched Nd: YAG laser at the fundamental wavelength was studied using spectroscopy. The Boltzmann plot and Stark broadening method were used to measure the main plasma parameters (electron temperature and electron density). The electron temperature ranged ( 0.169 -0.172 ) eV, the electron density ranged ( 2.10 – 2.63 ) for laser energy range of ( 400 – 700) mJ. Other basic plasma properties were also measured, including the Debye length, the number of particles in the Debye sphere, and the plasma frequency. Laser energy affects all plasma parameters, according to our results.

Plasma Optical Emission Spectroscopy Study of Some Iron Meteorites

“…The first prerequisite for plasma existence is that the Debye length should be extremely tiny in relation to the system dimension: λ D << L, where L is the dimension system (cm), e is the electron charge, ε o is the free-space permittivity, and k is the Boltzmann constant [23]. m e is the electron mass.…”