Universiti Teknologi Malaysia Institutional Repository

Laser induced graphite plasma kinetic spectroscopy under different ambient pressures

Abdullah Hamami, Nurul Faridah and Mohd. Sabri, Nursalwanie and Haider Rizvi, Syed Zuhaib and Chaudhary, Kashif Tufail and Abd. Aziz, Muhammad Safwan and Ali, Jalil (2017) Laser induced graphite plasma kinetic spectroscopy under different ambient pressures. In: 9th International Conference on Plasma Science and Applications, 28-30 Nov, 2016, Langkawi, Malaysia.

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Official URL: http://dx.doi.org/10.1063/1.4978825

Abstract

In this study, graphite laser induced plasma dynamics are investigated by optical emission spectroscopy. Graphite plasma is generated using a 1064 nm Nd:YAG laser in helium environment under different ambient pressures. Characteristics of graphite spectra as lines intensity variations and signal to noise ratio are presented with main focus on the influence of the helium environment and pressure on plasma dynamics. Carbon atomic emission lines are used to study the dynamical behavior of plasma such as the excitation temperature and electron density to describe emission differences in different ambient conditions. The excitation temperature and plasma electron density are the primary factor contribute to the differences among the atomic carbon emission in different ambient pressures.

Item Type:Conference or Workshop Item (Paper)
Additional Information:RADIS System Ref No:PB/2017/11965
Uncontrolled Keywords:plasma electron, spectroscopy
Subjects:Q Science
Divisions:Science
ID Code:66192
Deposited By: Widya Wahid
Deposited On:17 Jul 2017 10:06
Last Modified:26 Jul 2017 11:00

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