Color-based tracking of plasma dust particles

College

College of Science

Department/Unit

Physics

Document Type

Article

Source Title

Physics of Plasmas

Volume

21

First Page

023703-1

Last Page

023703-4

Publication Date

2014

Abstract

Color-based tracking to observe agglomeration of deposited particles inside a compact planar magnetron during plasma discharge was done by creating high dynamic range (HDR) images of photos captured by a Pentax K10D digital camera. Carbon erosion and redeposition was also monitored using the technique. The HDR images were subjected to a chromaticity-based constraint discoloration inside the plasma chamber indicating film formation or carbon redeposition. Results show that dust deposition occurs first near the evacuation pumps due to the pressure gradient and then accumulates at the positively charged walls of the chamber. This method can be applied to monitor dust formation during dusty plasma experiments without major modification of plasma devices, useful especially for large fusion reactors.

html

Digitial Object Identifier (DOI)

https://doi.org/10.1063/1.4865830

Disciplines

Physics

Keywords

Dust—Imaging; High dynamic range imaging

Upload File

wf_no

This document is currently not available here.

Share

COinS