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Title: Conversion of electromagnetic energy in Z-pinch process of single planar wire arrays at 1.5 MA

The electromagnetic energy conversion in the Z-pinch process of single planar wire arrays was studied on Qiangguang generator (1.5 MA, 100 ns). Electrical diagnostics were established to monitor the voltage of the cathode-anode gap and the load current for calculating the electromagnetic energy. Lumped-element circuit model of wire arrays was employed to analyze the electromagnetic energy conversion. Inductance as well as resistance of a wire array during the Z-pinch process was also investigated. Experimental data indicate that the electromagnetic energy is mainly converted to magnetic energy and kinetic energy and ohmic heating energy can be neglected before the final stagnation. The kinetic energy can be responsible for the x-ray radiation before the peak power. After the stagnation, the electromagnetic energy coupled by the load continues increasing and the resistance of the load achieves its maximum of 0.6–1.0 Ω in about 10–20 ns.
Authors:
; ; ;  [1] ;  [2] ;  [3] ;  [1] ;  [2]
  1. Northwest Institute of Nuclear Technology, Xi'an 710024 (China)
  2. (China)
  3. Xi'an Jiaotong University, Xi'an 710049 (China)
Publication Date:
OSTI Identifier:
22304144
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANODES; CATHODES; ELECTRIC POTENTIAL; ENERGY CONVERSION; HEATING; INDUCTANCE; KINETIC ENERGY; PEAK LOAD; X RADIATION