Radiative cooling of two-component wire-array Z-pinch plasma
نویسندگان
چکیده
منابع مشابه
Steady-state radiation ablation in the wire-array Z pinch
The mass ablation phase of a wire-array Z pinch is investigated using steady-state r , simulations. By identifying the dominant physical mechanisms governing the ablation process, a simple scaling relation is derived for the mass ablation rate ṁ with drive current I, in the case where radiation is the primary energy transport mechanism to the wire core. In order to investigate the dependence of...
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The twoand three-dimensional ~2D and 3D! versions of ALEGRA-HEDP @A. C. Robinson and C. J. Garasi, ‘‘Three-dimensional Z-pinch wire array modeling,’’ Computer Physics Communications, submitted# have been utilized to simulate discrete wire effects including precursor formation in 2D (r-u plane! and nonuniform axial ablation ~3D!. Comparisons made between 2D and 3D simulations indicate that 2D si...
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We present the application of a short rise ( 150 ns) 250 kA linear transformer driver (LTD) to wire array z-pinch loads for the first time. The generator is a modification of a previous driver in which a new conical power feed provides a low inductance coupling to wire loads. Performance of the new design using both short circuit and plasma loads is presented and discussed. The final design del...
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Z-pinch effects in a laser produced aluminium plasma were investigated with a relatively low current fast coaxial electrical discharge. The ion flux in the laser produced plasma (LPP) was monitored with a Langmuir ion probe and the line density was controlled by using an aperture to select the portion of the LPP which enters the discharge cell. The Zpinch dynamics were recorded using time-resol...
متن کاملOptical Thomson scattering measurements of plasma parameters in the ablation stage of wire array Z pinches.
A Thomson scattering diagnostic has been used to measure the parameters of cylindrical wire array Z pinch plasmas during the ablation phase. The scattering operates in the collective regime (α>1) allowing spatially localized measurements of the ion or electron plasma temperatures and of the plasma bulk velocity. The ablation flow is found to accelerate towards the axis reaching peak velocities ...
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2014
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.4892180