Experimental investigation of line-tying effects on the spheromak tilt mode

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Description

A variety of passive stabilization techniques compatible with S-1 inductive spheromak formation has been evaluated for effectiveness against the MHD tilting instability. A line-tying stabilization effect has been previously identified theoretically. In the present work, the effects have been experimentally identified and investigated. The perturbed current patterns within passive stabilizing structures have been measured, and line-tying currents have been identified. The simple ring model of tilting has been expanded to include line-tying, and has provided estimates for growth rates which agree well with the measured values. 51 refs., 18 figs., 1 tab.

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Pages: 64

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Wysocki, F.J. February 1, 1986.

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Description

A variety of passive stabilization techniques compatible with S-1 inductive spheromak formation has been evaluated for effectiveness against the MHD tilting instability. A line-tying stabilization effect has been previously identified theoretically. In the present work, the effects have been experimentally identified and investigated. The perturbed current patterns within passive stabilizing structures have been measured, and line-tying currents have been identified. The simple ring model of tilting has been expanded to include line-tying, and has provided estimates for growth rates which agree well with the measured values. 51 refs., 18 figs., 1 tab.

Physical Description

Pages: 64

Notes

NTIS, PC A04/MF A01; 1.

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  • Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted

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  • Other: DE86006362
  • Report No.: PPPL-2302
  • Grant Number: AC02-76CH03073
  • Office of Scientific & Technical Information Report Number: 6245796
  • Archival Resource Key: ark:/67531/metadc1108866

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • February 1, 1986

Added to The UNT Digital Library

  • Feb. 22, 2018, 7:45 p.m.

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  • May 11, 2018, 3:22 p.m.

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Wysocki, F.J. Experimental investigation of line-tying effects on the spheromak tilt mode, report, February 1, 1986; New Jersey. (digital.library.unt.edu/ark:/67531/metadc1108866/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.