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Please use this identifier to cite or link to this item: http://purl.org/purl/2457

Title: Electron density and temperature measurements in a laser produced carbon plasma
Authors: Harilal, S S
Bindhu, C V
Issac, Riju C
Nampoori, V P N
Vallabhan, C P G
Technology
Keywords: plasma density
plasma temperature
plasma production by laser
spectral line intensity
Stark effect
plasma thermodynamics
CARBON
Issue Date: 1-Sep-1997
Publisher: American Institute of Physics
Abstract: Plasma generated by fundamental radiation from a Nd:YAG laser focused onto a graphite target is studied spectroscopically. Measured line profiles of several ionic species were used to infer electron temperature and density at several sections located in front of the target surface. Line intensities of successive ionization states of carbon were used for electron temperature calculations. Stark broadened profiles of singly ionized species have been utilized for electron density measurements. Electron density as well as electron temperature were studied as functions of laser irradiance and time elapsed after the incidence of laser pulse. The validity of the assumption of local thermodynamic equilibrium is discussed in light of the results obtained.
URI: http://dyuthi.cusat.ac.in/purl/2457
Appears in Collections:Dr.C P Girijavallabhan

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