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We have developed conceptual designs of two next-generation petawatt-class pulsed-power accelerators. The designs are based on the architecture described in Ref. [1]. The prime power source of both designs is a system of lineartransformer drivers (LTDs) [2,3]. Both designs use six water-insulated radial-transmission-line impedance transformers [1,4,5] to transport the power generated by the LTDs to...
We have developed and tested two prototype linear transformer drivers (LTDs): LTD III [1], which is a single LTD cavity that generates a peak electrical power of 79 GW, and Mykonos II [2,3], which is a two-cavity 142 GW LTD module. LTD III is driven by 20 bricks, each of which includes an 85-nH gas switch and two 60-nF capacitors. LTD III has been successfully tested on 3,500 shots at a charge voltage...
A system of 36 laser-triggered gas switches (LTGS) serves as the last set of command-triggered switches in the 80-TW refurbished Z accelerator at Sandia National Laboratories (SNL). The system is instrumental in the overall performance of Z and allows for flexibility in pulse shaping for various experimental campaigns. It is desirable to push the operating envelope of the switches to higher voltages...
A 500 kV HVDC breaker prototype for switching load and fault currents up to 2200A was designed, manufactured, tested, and delivered to the Celilo terminal of BPA for field trial. This prototype breaker was a result of integrating a HVDC SF6 puffer interrupter into a Westinghouse LWER HVAC breaker. Detailed developments are presented here including design of the components, interrupter development???...
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