Plasma fluctuation spectra as a diagnostic tool for submicron dust

S. Ratynskaia, M. De Angeli, E. Lazzaro, C. Marmolino, U. De Angelis, C. Castaldo, A. Cremona, L. Laguardia, G. Gervasini, G. Grosso

Research output: Contribution to journalArticle

15 Citations (Scopus)


It is shown that the measurements of density fluctuation spectra in dusty plasmas can constitute a basis for in situ diagnostic of invisible submicron dust. The self-consistent kinetic theory that includes the charging processes and the natural density fluctuations of the dust particles predicts modifications of the spectra due to the presence of dust. A laboratory experiment was carried out where submicron dust was produced in a gas phase and diagnosed by surface analysis of samples and by measurements of its influence on the plasma density fluctuation spectra. Quantitative comparison of the latter with the theory yields information on dust density, size, and distribution in agreement with the results of the surface analysis. The method can be applied to various plasma environments in laboratory and space. © 2010 American Institute of Physics.
Original languageEnglish
Article number043703
Pages (from-to)-
JournalPhysics of Plasmas
Issue number4
Publication statusPublished - Apr 2010
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Ratynskaia, S., De Angeli, M., Lazzaro, E., Marmolino, C., De Angelis, U., Castaldo, C., ... Grosso, G. (2010). Plasma fluctuation spectra as a diagnostic tool for submicron dust. Physics of Plasmas, 17(4), -. [043703].