Journal Cover
Volume 19 No 9 (2021)
Download PDF
Calculation of the Coupling Coefficient of Electrons in Laser Induced Plasma for Samples of Writing Ink Elements Using LIBS Technique
Mohammed Abdullah Jasim, Sami Abd Al-Hussein Hatif , Alaa Hussein Ali
Abstract
The technique of laser breakdown spectroscopy (LIBS) was employed for samples of writing inks under the influence
of a Nd:YAG laser pulse 1064 nm with a pulse duration of 10 ns on different targets of writing ink models. The plasma
parameters were also calculated, which are the temperature and density of electrons, assuming local thermodynamic
equilibrium conditions (LTE) and using a spectral detector model (View spectra 2100) for the spectral range
(200nm - 900nm). The results showed differences in the values of the pairing coefficient of electrons in the plasma.
Produced due to the laser pulse used as well as in the plasma parameters mentioned, which can be applied in plasma
spectroscopy for forensic sciences in detecting forgery in documents and tracking the performance and phenomena of
the plasma formed due to the laser pulse.
Keywords
LIBS Technique, Electrons Pairing Coefficient, Plasma Parameters, Electron Temperature, Electrons Density
Copyright
Copyright © Neuroquantology
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Articles published in the Neuroquantology are available under Creative Commons Attribution Non-Commercial No Derivatives Licence (CC BY-NC-ND 4.0). Authors retain copyright in their work and grant IJECSE right of first publication under CC BY-NC-ND 4.0. Users have the right to read, download, copy, distribute, print, search, or link to the full texts of articles in this journal, and to use them for any other lawful purpose.