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Negative-polarity Rod-pinch diode experiments on RITS-6

The Negative-polarity Rod-pinch (NPRP) diode is being developed and tested on the RITS-6 accelerator to expand radiographic capabilities. Experimental results include shots where the diode impedance is relatively constant and the x-ray dose is as high as 175 Rad@1m with a 2.5-mm source spot size. Other shots have a rapidly decreasing diode impedance and much lower x-ray dose. Data presented here include measurements of beam current, dose rate, forward and backward directed dose, and x-ray source spot size.