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Temporal Variation of the Current Sheet Inductance from PACO Plasma Focus Device

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Abstract

The temporal variation of the current sheet (CS) inductance in a plasma focus device can be calculated using the current derivative and the voltage signal acquired on the anode electrode, which are very common measurements in this type of device. The value of that inductance contains important information about the discharge performed including the CS lift-off from the insulator, voltage between the pinch extremes, maximum energy of the X-ray, energy delivered to the pinch and information about the actuating fusion mechanisms if the filling pressure is deuterium. This work discusses the values of the CS inductance extracted from several discharges of the Plasma Auto Confinado (PACO) plasma focus, installed in the National University of the Center of Buenos Aires—Argentina (2 kJ total energy, capacitor bank of 4 μF charged to 31 kV and a maximum current of 250 kA).

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Acknowledgments

This research was supported in part by the Fund for Scientific Research and Technology (FONCyT) PICT 2012 Nº 0926, the National Scientific and Technical Research Council (CONICET) of Argentina PIP 0391 and by the National University of the Center of the Buenos Aires Province (UNCPBA). C. Pavez, J. Moreno and L. Soto from Chile supported by CONICYT-PIA grant ACT-1115. M. Barbaglia thanks to the Argentina National Atomic Energy Commission (CNEA) and International Atomic Energy Agency (IAEA) for support to spread this knowledge.

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Authors and Affiliations

  1. CONICET - Universidad Nacional del Centro de la provincia de Buenos Aires, Buenos Aires, Argentina

    M. O. Barbaglia & M. Milanese

  2. CCHEN - Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile

    L. Soto, J. Moreno & C. Pavez

  3. Departamento de Ciencias Físicas, Facultad de Ciencias Exactas, Universidad Andrés Bello, República 220, Santiago, Chile

    L. Soto, J. Moreno & C. Pavez

  4. CNEA - CONICET and Universidad Nacional del Centro de la provincia de Buenos Aires, Buenos Aires, Argentina

    A. Clausse

  5. CONICET - Universidad de Buenos Aires, Buenos Aires, Argentina

    C. Moreno

Authors
  1. M. O. Barbaglia
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  2. M. Milanese
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  3. L. Soto
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  4. A. Clausse
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  5. J. Moreno
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  6. C. Pavez
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  7. C. Moreno
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Correspondence to M. O. Barbaglia.

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Barbaglia, M.O., Milanese, M., Soto, L. et al. Temporal Variation of the Current Sheet Inductance from PACO Plasma Focus Device. J Fusion Energ 35, 561–566 (2016). https://doi.org/10.1007/s10894-016-0061-6

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  • DOI: https://doi.org/10.1007/s10894-016-0061-6

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