Coaxial 0.5 MV air-core pulse transformer

The paper describes the successful development of a novel design of high-voltage pulse transformer, having a coaxial primary winding and a toroidal secondary winding and a magnetic coupling coefficient between the windings in excess of 0.8. The air-core transformer operates in air, does not require any oil or pressurized gas, and it is capable of producing high-voltage impulses in excess of 0.5 MV with a corresponding load power of several GWs.