Title :
X-ray spectrum and spatial stability of hot spots in gas-puff z-pinch plasmas driven by inductive energy storage pulsed power generator with a plasma opening switch
Author :
Murayama, K. ; Teramoto, Y. ; Katsuki, S. ; Akiyama, H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Kumamoto Univ., Japan
Abstract :
Gas-puff z-pinch plasmas are driven by an inductive voltage adder inductive energy storage pulsed power generator "ASO-X". ASO-X has the performance of the maximum output voltage and current are 180 kV and 400 kA respectively and can provide a fast rise time current with operating POS. Spectrum radiated from z-pinch plasmas and the spatial distribution of hot spots are investigated in the case with and without operating POS. By driving ASO-X with operating POS the soft x-ray intensity in the range of He-like argon resonance line is increased and the spatial distribution of hot spots are 50% improved with regard to kurtosis of the intensity profile of pinhole photographs compared to those without operating POS.
Keywords :
Z pinch; plasma diagnostics; plasma switches; pulsed power supplies; 180 kV; 400 kA; ASO-X; fast rise time current; gas-puff Z-pinch plasmas; hot spots; inductive energy storage pulsed power generator; inductive voltage adder; pinhole photographs; soft X-ray intensity; Capacitors; Cathodes; Energy storage; Plasma measurements; Plasma stability; Plasma x-ray sources; Power generation; Pulse generation; Switches; Voltage;
Conference_Titel :
Pulsed Power Plasma Science, 2001. PPPS-2001. Digest of Technical Papers
Conference_Location :
Las Vegas, NV, USA
Print_ISBN :
0-7803-7120-8
DOI :
10.1109/PPPS.2001.1002210
