Regenerative Soot-IV: The state of the carbon vapour in the regenerative sooting discharge

TL;DR

This paper investigates the state of carbon vapour in regenerative soot discharges, focusing on how carbon clusters are recycled and influence plasma emission characteristics.

Contribution

It provides an analysis of the regeneration process of soot and the transition from sputtering to sooting modes using emission spectroscopy.

Findings

Carbon vapour state correlates with soot regeneration

Emission lines reveal plasma mode transitions

Large carbon clusters are key to soot regeneration

Abstract

Formation of the regenerative soot is the process of recycling and introduction of the cathode deposited carbon clusters into the discharge. The agglomerates of carbon clusters on the cathode release their constituents into the plasma that goes from the pure sputtering mode to the sooting one. The process of the regeneration of the soot that emits large carbon clusters is discussed by evaluating the state of the carbon vapour by using the characteristic line emissions from the discharge.