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.
|Title of host publication||Proceedings of the 18th Euregional Workshop on the Exploration of Low Temperature Plasma Physics (WELTPP-18 2015), 3-4 December 2015, Kerkrade, The Netherlands|
|Publication status||Published - 3 Dec 2015|
|Event||18th Euregional Workshop on the Exploration of Low Temperature Plasma Physics (WELTPP 2015) - Conference centre "Rolduc", Kerkrade, Netherlands|
Duration: 3 Dec 2015 → 4 Dec 2015
|Workshop||18th Euregional Workshop on the Exploration of Low Temperature Plasma Physics (WELTPP 2015)|
|Period||3/12/15 → 4/12/15|