Modelling of the internal dynamics and density in a tens of joules plasma focus device

Journal Article · Sun Jan 15 00:00:00 EST 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3672005· OSTI ID:22043588

Marquez, Ariel ^[1]; Gonzalez, Jose ^[2]; Tarifeno-Saldivia, Ariel; Pavez, Cristian; Soto, Leopoldo ^[3]; Clausse, Alejandro ^[4]

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1. CNEA and Instituto Balseiro, 8402 Bariloche (Argentina)
2. INVAP-CONICET and Instituto Balseiro, 8402 Bariloche, Argentina. (Argentina)
3. CCHEN, Comision Chilena de Energia Nuclear, Casilla 188-D, Santiago (Chile)
4. CNEA-CONICET and Universidad Nacional del Centro, 7000 Tandil (Argentina)

Using MHD theory, coupled differential equations were generated using a lumped parameter model to describe the internal behaviour of the pinch compression phase in plasma focus discharges. In order to provide these equations with appropriate initial conditions, the modelling of previous phases was included by describing the plasma sheath as planar shockwaves. The equations were solved numerically, and the results were contrasted against experimental measurements performed on the device PF-50J. The model is able to predict satisfactorily the timing and the radial electron density profile at the maximum compression.

• OSTI ID: 22043588
• Journal Information: Physics of Plasmas, Vol. 19, Issue 1; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPRESSION
DENSITY
DIFFERENTIAL EQUATIONS
ELECTRIC DISCHARGES
ELECTRON DENSITY
MAGNETOHYDRODYNAMICS
NUMERICAL ANALYSIS
PINCH EFFECT
PLASMA
PLASMA DENSITY
PLASMA FOCUS
PLASMA FOCUS DEVICES
PLASMA SHEATH
SHOCK WAVES
SIMULATION