Title :
Space- and time-resolved interferometry of plasma-filled rod-pinch diodes
Author :
Ponce, David M. ; Phipps, David ; Hinshelwood, David D. ; Weber, B.V.
Author_Institution :
Div. of Plasma Phys., Naval Res. Lab., Washington, DC, USA
Abstract :
This paper presents results from interferometric diagnosis of plasma dynamics in a plasma-filled rod-pinch diode (PFRP) on GAMBLE II at NRL, with diode voltages and currents of 1MV and 600 kA respectively. A high sensitivity interferometer shows the time history of the prefill plasma moving past the anode tip propelled by a J/spl I.oarr//spl times/B/spl I.oarr/ snowplow. Images from a 2-D holographic interferometer show the gun plasma MHD evolution and show the anode tip explode after the start of the X-ray pulse. The results of these studies will be used as experimental benchmarks in the theoretical studies of the PFRP.
Keywords :
holographic interferometry; plasma X-ray sources; plasma diagnostics; plasma diodes; plasma guns; plasma magnetohydrodynamics; pulse generators; 2-D holographic interferometer; GAMBLE II; NRL; X-ray pulse; diode current; diode voltage; gun plasma MHD; high sensitivity interferometer; interferometric diagnosis; plasma dynamic; plasma-filled rod-pinch diode; snowplow; space-resolved interferometry; time-resolved interferometry; Anodes; Diodes; History; Holography; Interferometry; Magnetohydrodynamics; Plasma diagnostics; Plasma x-ray sources; Propulsion; Voltage;
Conference_Titel :
Pulsed Power Conference, 2003. Digest of Technical Papers. PPC-2003. 14th IEEE International
Conference_Location :
Dallas, TX, USA
Print_ISBN :
0-7803-7915-2
DOI :
10.1109/PPC.2003.1277760
