Experimental pressure dependence of positive corona discharge in N2
Università degli Studi di Milano-Bicocca, Dipartimento di Fisica “G. Occhialini”, P.zza della Scienza 3, 20126 Milano, Italy
Corresponding author: a firstname.lastname@example.org
Published online: 30 July 2003
This paper presents the experimental pressure dependence, in the range Pa, of the characteristic of a N2 positive corona discharge. The pressure raise is related to the gas flow increase into the chamber where the corona is ignited. Experimental measurements confirm Townsend's characteristic. For a fixed potential difference between the electrodes, corona currents decrease as the gas flow increases (pressure increase): this has been ascribed to a lower ionization rate close to the stressed electrode and a lower charge mobility in the drift region. Both these processes result in a lower current generated by the discharge.
PACS: 52.80.Hc – Glow; corona
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003