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Overview of self-magnetic pinch diode investigations on RITS-6

By: Johnston, M.D.; Webb, T.; Molina, I.; Leckbee, J.J.; Cordova, S.R.; Oliver, B.V.; Hahn, K.; Threadgold, J.; Jones, A.; Heathcoat, A.; Crotch, I.; Critchley, A.; Clough, S.; Ziska, D.; Portillo, S.; Welch, D.R.; Rose, D.V.;

2009 / IEEE / 978-1-4244-2617-1

Description

This item was taken from the IEEE Conference ' Overview of self-magnetic pinch diode investigations on RITS-6 ' The self-magnetic pinch diode is currently fielded on the RITS-6 accelerator at Sandia National Laboratories operating between 7-12 MV and is the leading candidate for future radiographic source development at the Atomic Weapons Establishment. The diode is capable of producing sub 3-mm radiation spot sizes and greater than 350 Rads measured at 1m. Complex physical processes affect the diode operation which in turn may affect its radiographic potential. High-resolution, time-resolved diagnostics have been utilized to help quantify the diode physics which include plasma spectroscopy, gated imaging, X-ray p-i-n diodes, spot size, and diode current measurements. The data from these diagnostics are also used to benchmark particle-in-cell simulations in order to better understand the underlying physics of operation. An overview of these experiments and simulations including future plans is presented.