Steady state Z-pinch profiles
Book
·
OSTI ID:6399449
- Cornell Univ., Ithaca, NY (USA). Lab. of Plasma Studies
The one dimensional, steady-state solutions of a Z-pinch are re-examined, especially to see how the competition between ohmic heating and radiative cooling affects the profiles of plasma properties. It is found that the profiles are sensitive to the particular model adopted for the transport of current (resistivity) and energy (thermal conductivity). Strictly speaking, none of the solutions examined provides a physically satisfactory solution for pinch equilibria within a finite radius. Nor is there clear evidence that equilibrium solutions contract in radius as the pinch current is increased and the Pease value is approached, although in some models a singularity of sorts occurs at a critical value of the current. As a consequence, one might question the usefulness of one dimensional, stead-state formulations in trying to understand the dynamics of high current Z-pinches and their apparent stability.
- OSTI ID:
- 6399449
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700103 -- Fusion Energy-- Plasma Research-- Kinetics
700200 -- Fusion Energy-- Fusion Power Plant Technology
COOLING
ELECTRIC HEATING
HEATING
JOULE HEATING
LINEAR PINCH DEVICES
LINEAR Z PINCH DEVICES
ONE-DIMENSIONAL CALCULATIONS
OPEN PLASMA DEVICES
PINCH DEVICES
PLASMA HEATING
RADIATIVE COOLING
RESISTANCE HEATING
STEADY-STATE CONDITIONS
THERMONUCLEAR DEVICES
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700103 -- Fusion Energy-- Plasma Research-- Kinetics
700200 -- Fusion Energy-- Fusion Power Plant Technology
COOLING
ELECTRIC HEATING
HEATING
JOULE HEATING
LINEAR PINCH DEVICES
LINEAR Z PINCH DEVICES
ONE-DIMENSIONAL CALCULATIONS
OPEN PLASMA DEVICES
PINCH DEVICES
PLASMA HEATING
RADIATIVE COOLING
RESISTANCE HEATING
STEADY-STATE CONDITIONS
THERMONUCLEAR DEVICES