James Petrosky

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A new methodology for radiation induced real-time fault detection and diagnosis, utilizing FPGA-based architectures was developed. The methodology includes a full test platform to evaluate a circuit while under radiation and an algorithm to detect and diagnose fault locations within a circuit using Triple Design Triple Modular Redundancy (TDTMR). An(More)
The energy spectrum of the Neutron Radiation Effects Program (NREP) beam line, Target-ModeratorReflector-1 (TMR-1), at Indiana University has not been previously characterized. The facility has a unique proton source with variable pulse length (15-600 s) and energy (13 MeV). Thus, it can produce a unique and tailored neutron beam when incident on a(More)
UWBSP EM systems typically rely on spark gap or vacuum tube-based devices because of the significant current and voltage magnitudes involved. Historically, solid-state devices have not been able to resist dielectric breakdown and the subsequent catastrophic failure modes that result in device damage when the large, pulsed bias voltages associated with UWBSP(More)
The integration of optoelectronic devices, such as photoconductive semiconductor switches (PCSS), into existing antenna source architectures for the generation of radio frequency (RF) pulses may yield higher switching speeds and improved power efficiency over conventional switching methods while reducing size/weight. The key enabling technologies for this(More)
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