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Title: Influence of globalmagnetic perturbations on plasma behavior in Elmo Bumpy Torus

Abstract

The sensitivity of plasma confinement to magnetic field error effects has been tested experimentally using externally introduced global field errors on the ELMO Bumpy Torus (EBT). Below a critical error field (deltaB/sub r//B)/sub cr/ of approx. = to 0.6-1 x 10/sup -3/ the plasma was observed to be essentially free from convective cells, toroidal currents, and instabilities. This observed critical value is comparable to a neoclassical critical field error (deltaB/sub r//B)/sub cr/ approx. = rho/R, the ratio of the ion Larmor radius to the major radius of the torus.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
6191656
Report Number(s):
ORNL/TM-6704
TRN: 79-008702
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ELMO BUMPY TORUS; PLASMA CONFINEMENT; ERRORS; LARMOR RADIUS; MAGNETIC FIELD CONFIGURATIONS; PLASMA MACROINSTABILITIES; CONFINEMENT; ELMO DEVICES; INSTABILITY; MAGNETIC MIRRORS; OPEN PLASMA DEVICES; PLASMA INSTABILITY; THERMONUCLEAR DEVICES; 700101* - Fusion Energy- Plasma Research- Confinement, Heating, & Production

Citation Formats

Quon, B.H., Dandl, R.A., Colestock, P.L., :Bieniosek, F.M., and Ikegami, H. Influence of globalmagnetic perturbations on plasma behavior in Elmo Bumpy Torus. United States: N. p., 1979. Web. doi:10.2172/6191656.
Quon, B.H., Dandl, R.A., Colestock, P.L., :Bieniosek, F.M., & Ikegami, H. Influence of globalmagnetic perturbations on plasma behavior in Elmo Bumpy Torus. United States. doi:10.2172/6191656.
Quon, B.H., Dandl, R.A., Colestock, P.L., :Bieniosek, F.M., and Ikegami, H. Thu . "Influence of globalmagnetic perturbations on plasma behavior in Elmo Bumpy Torus". United States. doi:10.2172/6191656. https://www.osti.gov/servlets/purl/6191656.
@article{osti_6191656,
title = {Influence of globalmagnetic perturbations on plasma behavior in Elmo Bumpy Torus},
author = {Quon, B.H. and Dandl, R.A. and Colestock, P.L. and :Bieniosek, F.M. and Ikegami, H.},
abstractNote = {The sensitivity of plasma confinement to magnetic field error effects has been tested experimentally using externally introduced global field errors on the ELMO Bumpy Torus (EBT). Below a critical error field (deltaB/sub r//B)/sub cr/ of approx. = to 0.6-1 x 10/sup -3/ the plasma was observed to be essentially free from convective cells, toroidal currents, and instabilities. This observed critical value is comparable to a neoclassical critical field error (deltaB/sub r//B)/sub cr/ approx. = rho/R, the ratio of the ion Larmor radius to the major radius of the torus.},
doi = {10.2172/6191656},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {2}
}