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The reflex-diode HPM source on Aurora

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12 Author(s)
Huttlin, G.A. ; US Army Lab. Command, Harry Diamond Labs., Adelphi, MD, USA ; Bushell, M.S. ; Conrad, D.B. ; Davis, D.P.
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The most recent in a series of experiments to develop the reflex diode as a source of microwaves on the Aurora relativistic electron-beam pulser is described. An overall output has been achieved for radial extraction of ~400 J in microwave bursts from ~100 to 150 ns at frequencies below 1 GHz. The diagnostics for radial extraction have included directional couplers, card calorimeters, and free-field sensors. The authors have varied the anode-cathode spacing, downstream microwave reflector, and a second anode foil, but, within the range of variations, no strong trends have been noted

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Plasma Science, IEEE Transactions on  (Volume:18 ,  Issue: 3 )