Experimental investigation of a compact L-band magnetically insulated transmission line oscillator

A compact L-band magnetically insulated transmission line oscillator(MILO),which has a new-type mode converter and a vewtype beam dump which increases a beam dump disk,a noe-cavity RF choke and a carefully designed impedance discontinuity between the choke-vane section and the SWS-vane section, is experimentally investigated. The compact MILO is driven by a self-built 600kV, 8Ω, 100ns pulser:SPARK０１.When the input voltage is 515～538kV, and the diode current is 58～61kA, high power microwaves of the TM01 mode are generated from the device with a frequency of 1.76～1.78GHz, an output power of 2.2～2.5GW, and the power conversion efficiency of 7.3%～7.9% in experiments. In this case, the duration of the effective voltage (above the threshold voltage, 500kV) is 30ns, and the duration o