Title :
Imaging of Pressure-Dependent High-Power Microwave Surface Flashover
Author :
Beeson, Sterling R. ; Ford, Patrick J. ; Foster, Jonathan ; Krompholz, Hermann G. ; Neuber, Andreas A.
Author_Institution :
Center for Pulsed Power & Power Electron., Texas Tech Univ., Lubbock, TX, USA
Abstract :
Open-shutter and intensified charge-coupled device images of high-power microwave breakdown were taken in an effort to characterize the pressure dependence of plasma development. These images were taken with a Nikon D200 and Andor iStar DH734-25U-03, respectively. With the pressures increasing from 200 mtorr to 155 torr, the plasma changes from a diffuse discharge encompassing a large volume to a multichannel structure following the electric field lines.
Keywords :
flashover; high-frequency discharges; plasma diagnostics; plasma pressure; plasma transport processes; Andor iStar DH734-25U-03; Nikon D200; diffuse discharge analysis; high-power microwave breakdown; intensified charge-coupled device image; multichannel structure; plasma pressure; pressure 200 mtorr to 155 torr; pressure-dependent microwave surface flashover; Cameras; Discharges; Lenses; Microwave imaging; Plasmas; Dielectric breakdown; flashover; high-power microwaves (HPMs); low-pressure discharge; plasma imaging;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2149546
