Spectroscopic evaluation of the effect of the microparticles on radiofrequency argon plasma

Details Spectroscopic evaluation of the effect of the microparticles on radiofrequency argon plasma Spectroscopic evaluation of the effect of the microparticles on radiofrequency argon plasma

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009njph...11h3020m&link_type=abstract

New Journal of Physics, Volume 11, Issue 8, pp. 083020 (2009).

Physics

7

Scientific paper

Axial distributions of 1s excited states of argon were measured in a radiofrequency (RF) discharge by a self-absorption method. Experiments were performed in the PK-3+ chamber, designed for microgravity experiments in complex (dusty) plasmas on board the International Space Station. A correction of a standard self-absorption method for the extinction of the light by the levitating microparticles is proposed. Distributions, measured at the same discharge conditions in a microparticle-free discharge and a discharge containing a cloud of levitating microparticles, revealed the non-local influence of the microparticle cloud on the discharge plasma. The most probable cause of this influence is the disturbance of the ionization balance by the levitating microparticles.

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