Influence of Fe2O3 Dust Particles on the Plasma Characteristics of D.C Sputtering System

Abdulghani, Shahad Emaduldeen; Abbas, Qusay Adnan

doi:10.24996/ijs.2022.63.7.18

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…The average temperature of the electrons, denoted by T e , and the plasma density, denoted by n e , are the two most important parameters that determine the properties of plasma [21][22][23]. The intensity of electronic transition changes obeys the Boltzmann distribution principle according to the plasma temperature (T e ), the transition probability (A ji ) of the detected line, and the statistical weight (g j ) of its upper level, as presented by the formula [24].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Magnetized-Plasma System Induced by Laser

Abbas,

Abbas

2023

IJP

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This study investigated the effect of applying an external magnetic field on the characteristics of laser-induced plasma, such as its parameters plasma, magnetization properties, emission line intensities, and plasma coefficients, for plasma induced from zinc oxide: aluminum composite (ZO:AL) at an atomic ratio of 0.3 %. Plasma properties include magnetization and emission line intensities. The excitation was done by a pulsed laser of Nd:YAG with 400 mJ energy at atmospheric pressure. Both the electron temperature and number density were determined with the help of the Stark effect principle and the Boltzmann-Plot method. There was a rise in the amount of (ne) and (Te) that was produced by applying a magnetic field and, on the other hand, using the 532 nm wavelength rather than the fundamental wavelength of a laser. The emission lines in the atmosphere's plasma have an appearance of Lorentzian shape. The 532 nm laser exhibited a decrease in both the Larmor radius and the confinement factor compared with the 1064 nm laser. By applying the magnetic field, the Laser Induced Breakdown Spectroscopy (LIBS) intensities increased by 1.44 times when compared to the emissions before applying the field. In addition, the spectral line intensities improved with the fundamental wavelength compared to the second harmonic frequency as a result of the increase in the extracted materials. This is due to the increase in the absorbance of the laser by the target, as some of these materials are excited, so they act as emission sources, which makes them more detectable.

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