Further study of electromagnetically convoluted arc plasmas in atmospheric pressure air

The formation of convoluted arc plasma columns, concentric with a magnetic field (B-field) producing coil are considered. Preliminary experimental investigations are described on the effect on such electromagnetically convoluted arcs of a vertically inclined, electrically insulated plate attached to the outside of the Polytetrafluoroethylene (PTFE) cylinder containing the B-field producing coil. Experimental results are presented for the time variation of arc current and voltage along with post arc, photographic images of arc tracks on the PTFE cylinder and vertical plate, and video photographs of the plasma volume so formed. The results show that a new form of post arc plasma pulse appears to be formed with the deployment of the vertical PTFE plate.