Actions for SMALL-SCALE INSTABILITIES OF THE PINCH AND A SUGGESTED REMEDY--THE LEVITRON

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SMALL-SCALE INSTABILITIES OF THE PINCH AND A SUGGESTED REMEDY--THE LEVITRON

Author
Colgate, S. A.
Published
United States : [publisher not identified], 1958.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1958.
Physical Description
microopaque : positive ; 8 x 13 cm
Additional Creators
Furth, H. P.

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Summary
Experimental results on the classical stabilized pinch are reviewed. The main obstacle to further progress is shown to be small-scale turbulence of the plasma. This turbulence may either be hydromagnetic or induced by run-away electron streams. Whether or not hydromagnetic effects are important can be determined by means of a configuration having a high degree of hydromagnetic stability, the inverse stabilized pinch. In this configuration there is a rigid center conductor or "hard core," then, going radially outward, a region of B/sub theta / a cylindrical surface current concentric with the hard core, a region of B/sub z/, and finally a conducting outer shell. More general configurations are also of interest, and their stability against both bulk and surface perturbations is considered. Toroidal hard core pinches can be made in the Levitron, a toroidal pinch tube inside which a rigid toroidal conductor is levitated by means of an induced magnetic field. The usefulness of the Levitron in a Stellarator type operation is discussed. Some practical details of the levitation process are given. An alternative scheme is considered where the toroidal core is suspended from current-carrying wires. but this approach does not appear promising. In a reactor of the Levitron type, special problems arise, such as the cooling of the hard core, but no basic new obstacles are expected. (auth)
Report Numbers
UCRL-5392
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: W-7405-ENG-48
NSA number: NSA-14-026334
OSTI Identifier 4130372
Research organization: California. Univ., Livermore. Lawrence Radiation Lab.
View MARC record | catkey: 42517876