Progress on 20 GW compact repetitive Marx generator development

Development of a 20 GW compact repetitive Marx generator using voltage pulse trigger is summarized in this paper. Some new methods and structure models are firstly put forward in this device. Key techniques such as rectangular pulse forming, high voltage, repetition rate, long time stable operation are realized. The technical problems about repetitive and stable operation of high energy Marx generator are solved. The output power of the compact repetitive pulsed driver is aimed to exceed 20 GW, the pulse width is about 180 ns, the repetition rate is set from 1 Hz to 50 Hz. In addition, the output power and the repetition rate can be set in certain ranges. The volume of this generator is only 2.5 m3 and the weight is 2.2 t. The energy density of a pulse forming network model is 23 kJm-3. As an electron beam source, the output power of this generator is about 20 GW with singe pulse operation. The pulsed driver generator can operate stably at the output power of 16 GW, repetition rate of 30 Hz, the operating time of 10 s and the jitter of 6 ns.