Langmuir probe diagnostics of plasma produced by laser ablation

D. Margarone, D. Mascali, L. Torrisi, R. Miracoli*, N. Gambino, S. Gammino, G. Ciavola, L. Celona, F. Maimone

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A non-equilibrium plasma has been produced at INFN-LNS of Catania by means of laser ablation of a tantalum target placed in vacuum and by using a 9 ns Nd:YAG laser with 900 mJ maximum pulse energy and 1064 nm wavelength. The plasma plume is emitted mainly along the normal to the irradiated target surface. Plasma characterization has been performed "in situ" with a millimetric Langmuir Probe measuring the probe current vs. the polarization voltage and the time delay from the laser shot. The analysis of the I-V curve has permitted to characterize the plasma plume in terms of electron temperature, electron density, ion current density and plasma potential.

Original languageEnglish
Title of host publication35th EPS Conference on Plasma Physics 2008, EPS 2008 - Europhysics Conference Abstracts
Pages1186-1189
Number of pages4
Edition2
Publication statusPublished - 2008
Externally publishedYes
Event35th European Physical Society Conference on Plasma Physics, EPS 2008 Combined with the 10th International Workshop on Fast Ignition of Fusion Targets - Hersonissos, Crete, Greece
Duration: 09 Jun 200813 Jun 2008

Publication series

Name35th EPS Conference on Plasma Physics 2008, EPS 2008 - Europhysics Conference Abstracts
Number2
Volume32

Conference

Conference35th European Physical Society Conference on Plasma Physics, EPS 2008 Combined with the 10th International Workshop on Fast Ignition of Fusion Targets
CountryGreece
CityHersonissos, Crete
Period09/06/200813/06/2008

Bibliographical note

Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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