Electrical Behavior of an Ultralow-Energy Plasma-Focus Device

Measurements of electrical signals in discharges performed in a miniature plasma-focus device (5 nF capacitor bank, central electrode diameter and effective free length 2.0 and 0.5 mm, respectively, no outer electrode) are reported. A lumped model is built that gives good agreement between the model...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2014-01, Vol.42 (1), p.138-142
Main Authors: Barbaglia, Mario Oscar, Bruzzone, Horacio, Nestor Acuna, Hugo, Soto, Leopoldo, Clausse, Alejandro
Format: Article
Language:English
Subjects:
Capacitors
Discharges (electric)
Electric currents
Electric power
Electrical equipment
Electrodes
Fusion reactors
Physics
plasma devices
plasma focus
Plasma physics
Plasmas
Power transmission lines
Transmission line measurements
Voltage measurement
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Summary:Measurements of electrical signals in discharges performed in a miniature plasma-focus device (5 nF capacitor bank, central electrode diameter and effective free length 2.0 and 0.5 mm, respectively, no outer electrode) are reported. A lumped model is built that gives good agreement between the model and the recorded signals. The main conclusions are as follows: the voltage at which the chamber disk capacitor is charged is limited by the gas filling pressure inside the chamber and not just by the voltage in the capacitor energy source, and the behavior of the discharge current within the vacuum chamber depends on the whole system and not only on the last portion of the circuit, even for longer transmission line lengths.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2013.2293843