Balancing the fluxes : how deposited dust is charged

L.C.J. Heijmans, S. Nijdam

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

A dust particle on a surface will be electrically charged when a plasma is applied above it. This will cause an electric force on it, that is thought to be responsible for the lofting of dust grains from, for example, extra-terrestrial bodies. Control over this process might lead to a novel cleaning technique for the high-tech industry. The theory that describes this charging of deposited particles is, however, underdeveloped. In this contribution we present a novel model to simulate the charge on a non-conducting particle on a surface in a plasma. It is based on balancing the ion and electron fluxes through the plasma sheath towards the particle. With this, we show that the charge on a particle on a surface can be five orders of magnitude higher than what was previously assumed.
Original languageEnglish
Title of host publicationProceedings of the 18th Euregional Workshop on the Exploration of Low Temperature Plasma Physics (WELTPP-18 2015), 3-4 December 2015, Kerkrade, The Netherlands
Publication statusPublished - 3 Dec 2015
Event18th Euregional Workshop on the Exploration of Low Temperature Plasma Physics (WELTPP 2015) - Conference centre "Rolduc", Kerkrade, Netherlands
Duration: 3 Dec 20154 Dec 2015
http://phys.tue.nl/pmp/WELTPP/home/151001_ann_fin.pdf

Workshop

Workshop18th Euregional Workshop on the Exploration of Low Temperature Plasma Physics (WELTPP 2015)
Abbreviated titleWELTPP-18
CountryNetherlands
CityKerkrade
Period3/12/154/12/15
Internet address

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