Title :
Comparison of POS-load dynamics using different plasma sources on Hawk
Author :
Weber, B.V. ; Black, D.C. ; Moosman, B. ; Stephanakis, S.J. ; Hinshelwood, D.D. ; Commisso, R.J. ; Swanekamp, S.B. ; Schumer, J.W. ; Ottinger, P.F. ; Moschella, J.J. ; Vidoli, C.
Author_Institution :
Div. of Plasma Phys., Naval Res. Lab., Washington, DC, USA
fDate :
6/20/1905 12:00:00 AM
Abstract :
Hydrogen Plasma Opening Switch (POS) experiments on Hawk show potential for increasing bremsstrahlung radiation on DECADE. Interferometry indicates that the density of POS plasma is greatly reduced over a large fraction of the interelectrode region (>1 cm out of 2.2 cm) at the time of opening. This low-density region is much larger for the hydrogen POS than for flashover-source POSs used previously on Hawk (and DECADE), and may result in a significantly larger effective vacuum gap, improving the efficiency of energy coupling to loads. Species separation may be responsible for the difference in plasma dynamics between single- and multispecies POSs
Keywords :
hydrogen; load (electric); plasma density; plasma production; plasma switches; pulsed power switches; 2.2 cm; DECADE generator; H; H plasma opening switch; Hawk generator; POS plasma; POS-load dynamics; bremsstrahlung radiation; density; flashover-source POS; interelectrode region; plasma dynamics; plasma sources; AC generators; Current measurement; Hydrogen; Interferometry; Plasma density; Plasma measurements; Plasma sources; Plasma waves; Switches; Voltage;
Conference_Titel :
High-Power Particle Beams, 1998. BEAMS '98. Proceedings of the 12th International Conference on
Conference_Location :
Haifa
Print_ISBN :
0-7803-4287-9
DOI :
10.1109/BEAMS.1998.822261
