Electronic Resource
Springer
The European physical journal
269 (1974), S. 35-39
ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The axial contraction of linear pinches with racetrack-shaped and elliptic cross sections is studied byδW-analysis near the equilibrium shape. A surface current profile and a fixed plasma cross-section area are assumed. It is shown for the corresponding special perturbation thatδW is given by the variation of the surface energy(δW=δW s =1/8B p 2 ξ b 2 ), and thatδW is nearly independent of the shape of the plasma (racetrack or ellipse). The axial oscillation frequency is found to beΩ ax=1/2√CB p /√ρl with a constantC〈1. The model correctly predicts theB p and ρl-dependences of the experimental belt-pinch results and yields theoreticalΩ ax-values a factor of 2 above the experimental ones.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01668866
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