Laser assisted electron gas heating: revision of the criterion for high pressure non-thermal plasmas

E.A.D. Carbone, J.M. Palomares Linares, S. Hübner, J.J.A.M. Mullen, van der

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Abstract

Lasers are commonly used nowadays to investigate the plasma properties (laser-aided plasma diagnostics LAPD). However, in using LAPD, one should always be careful in tuning the laser power density to avoid perturbation of the plasma during the diagnostic. A general formula was given by Kunze [1] to determine the heating of electrons during laser diagnostics via electron-ion inverse bremsstrahlung (IB). In this contribution, it is shown that for low ionization degree and high pressure plasmas, electron-ion IB is a negligible heating process and that electron-atom IB becomes dominant. The criterion for non-invasive LAPD needs then to be revised consequently.
Original languageEnglish
Title of host publicationProceedings of the 30th International Conference on Phenomena in Ionized Gases (ICPIG 2011), August 28th- September 2nd, 2011, Belfast, UK
PagesB6-1/2
Publication statusPublished - 2011
Event30th International Conference on Phenomena in Ionized Gases (ICPIG 2011), August 28 - September 2, 2011, Belfast, UK - Belfast, United Kingdom
Duration: 28 Aug 20112 Sep 2011
http://www.qub.ac.uk/sites/icpig2011/

Conference

Conference30th International Conference on Phenomena in Ionized Gases (ICPIG 2011), August 28 - September 2, 2011, Belfast, UK
Abbreviated titleICPIG 2011
CountryUnited Kingdom
CityBelfast
Period28/08/112/09/11
Internet address

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