Spatial distribution of electron temperature of laser-induced aluminum alloy E414d plasma

zhao xiaoxia

Volume 23 Issue 09

Sep. 2012

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Article Navigation > High Power Laser and Particle Beams > 2011 > 23(09): 0-

shi jun, xiao sha-li, wang hong-jian, et al. Diagnosis of X-ray spectrum of Z-pinch plasma with mica curved crystal spectrometer[J]. High Power Laser and Particle Beams, 2008, 20.

Citation:

zhao xiaoxia. Spatial distribution of electron temperature of laser-induced aluminum alloy E414d plasma[J]. High Power Laser and Particle Beams, 2011, 23.

shi jun, xiao sha-li, wang hong-jian, et al. Diagnosis of X-ray spectrum of Z-pinch plasma with mica curved crystal spectrometer[J]. High Power Laser and Particle Beams, 2008, 20.

Citation:

zhao xiaoxia. Spatial distribution of electron temperature of laser-induced aluminum alloy E414d plasma[J]. High Power Laser and Particle Beams, 2011, 23.

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Spatial distribution of electron temperature of laser-induced aluminum alloy E414d plasma

zhao xiaoxia

1.
Department of Physics and Opto-Electronic Engineering,Xi’an University of Arts and Science,Xi’an 710065,China

Publish Date: 2011-09-15

Abstract

Abstract

Parameters of the laser-induced aluminum alloy E414d plasma are studied. The Local Thermodynamic Equilibrium (LTE) is proved valid for the electron number density (1.9×1018 cm-3), inferred from the Lorentz fit of Mg (Ⅰ) 285.21 nm, is lager than the lower limit (9.8×1015 cm-3) for LTE exists. The electron temperatures at different height are determined using the Blotzmann plot method with Al (Ⅰ) 256.80 nm, Al (Ⅰ) 308.21 nm and Al (Ⅰ) 396.15 nm. The electron temperature is maximum at the distance of 1.5 mm above the target surface and it decreases both at the plasma edge and close to the target surface. The physical explanations for this spatial distribution are presented.
- laser-induced breakdown spectroscopy,
- atomic emission spectroscopy,
- plasma,
- electron temperature,
- electron number density

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