Advanced Computational Techniques for Counterproliferation Problems

OptiSwitch Technology Corporation proposes the development of a high-power, optically activated solid-state switch for the replacement of the rail gap switches on DTRA's Fast Marx Generator (FMG). The switch is packaged into 200kV/250kA modules thatdirectly connect to the output plates of the fast capacitor. The switch is based on direct connection of thyristor elements, a technique that would offer the opportunity of both a high degree of compactness as well as of manufacturability for switchapplications. The optical switching results in ultra-low jitter (ps) between switch modules and enables parallel configurations of the FMG for mega-ampere and mega-voltage applications. The switches do not require replacement or refurbishment,drastically reducing the cost of ownership and downtime. This advanced switch technology also makes feasible a new type of pulse power machine, one based on low impedance transmission lines fabricated from capacitor grade, thin film dielectrics. Such asystem will be more efficient, less costly to build and maintain and more compact than current pulse power machines. This pulse power technology, enabled by the switch, is flexible such that one machine would deliver the required currents and voltages forboth BRS and PRS load with pulsewidths of less than 100ns.The development of this advanced solid-state switch will enable simulators to be less costly to build and maintain, more compact, and higher performance. Commercial applications are numerous; someinclude protecting electric utility and telecommunication systems from high current surges caused by lightning strikes and switching transients.