Numerical Simulation of the Inductance Variation of a Plasma Focus Based in a Two-Dimensional Model

• Published in: IEEE transactions on plasma science Vol. 40; no. 10; pp. 2312 - 2315
• Main Authors: Casanova, F., Bruzzone, H., Clausse, A.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-10-2012; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Current sheet (CS); Discharges; Electrodes; Inductance; Insulators; Measurement; Numerical models; numerical simulation; plasma focus (PF); Plasma physics; Plasmas; Sensitivity; Simulation
• ISSN: 0093-3813; 1939-9375
• DOI: 10.1109/TPS.2012.2191548

A numerical model for the calculation of the variable inductance during the current-sheet (CS) evolution in plasma-focus (PF) devices is presented. The model represents the CS by an articulated surface of many coaxial conical elements accelerated by the Lorentz force while collecting the mass swept in their paths. The numerical results are validated against the measurements of the time-varying inductance in a 6-kJ PF device, showing good agreement.