Enhanced confinement with plasma biasing in the MST reversed field pinch

D. Craig; A. F. Almagri; J. K. Anderson; J. T. Chapman; C. S. Chiang; N. A. Crocker; D. J. Den Hartog; G. Fiksel; S. C. Prager; J. S. Sarff; M. R. Stoneking

doi:10.1103/PhysRevLett.79.1865

Enhanced confinement with plasma biasing in the MST reversed field pinch

D. Craig, A. F. Almagri, J. K. Anderson, J. T. Chapman, C. S. Chiang, N. A. Crocker, D. J. Den Hartog, G. Fiksel, S. C. Prager, J. S. Sarff, M. R. Stoneking

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42 Scopus citations

Abstract

We report an increase in particle confinement with plasma biasing in a reversed field pinch. Miniature plasma sources are used as electrodes to negatively bias the plasma at the edge (r/a∼0.9) Particle content increases and H_α radiation decreases upon application of bias and global particle confinement roughly doubles as a result. Energy confinement is not significantly affected by biasing the edge. Measurements of plasma potential, impurity flow, and floating potential fluctuations indicate that strong flows are produced and that electrostatic fluctuations are reduced.

Original language	English (US)
Pages (from-to)	1865-1868
Number of pages	4
Journal	Physical review letters
Volume	79
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.79.1865
State	Published - 1997

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.79.1865

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title = "Enhanced confinement with plasma biasing in the MST reversed field pinch",

abstract = "We report an increase in particle confinement with plasma biasing in a reversed field pinch. Miniature plasma sources are used as electrodes to negatively bias the plasma at the edge (r/a∼0.9) Particle content increases and Hα radiation decreases upon application of bias and global particle confinement roughly doubles as a result. Energy confinement is not significantly affected by biasing the edge. Measurements of plasma potential, impurity flow, and floating potential fluctuations indicate that strong flows are produced and that electrostatic fluctuations are reduced.",

author = "D. Craig and Almagri, {A. F.} and Anderson, {J. K.} and Chapman, {J. T.} and Chiang, {C. S.} and Crocker, {N. A.} and {Den Hartog}, {D. J.} and G. Fiksel and Prager, {S. C.} and Sarff, {J. S.} and Stoneking, {M. R.}",

year = "1997",

doi = "10.1103/PhysRevLett.79.1865",

language = "English (US)",

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journal = "Physical review letters",

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T1 - Enhanced confinement with plasma biasing in the MST reversed field pinch

AU - Craig, D.

AU - Almagri, A. F.

AU - Anderson, J. K.

AU - Chapman, J. T.

AU - Chiang, C. S.

AU - Crocker, N. A.

AU - Den Hartog, D. J.

AU - Fiksel, G.

AU - Prager, S. C.

AU - Sarff, J. S.

AU - Stoneking, M. R.

PY - 1997

Y1 - 1997

N2 - We report an increase in particle confinement with plasma biasing in a reversed field pinch. Miniature plasma sources are used as electrodes to negatively bias the plasma at the edge (r/a∼0.9) Particle content increases and Hα radiation decreases upon application of bias and global particle confinement roughly doubles as a result. Energy confinement is not significantly affected by biasing the edge. Measurements of plasma potential, impurity flow, and floating potential fluctuations indicate that strong flows are produced and that electrostatic fluctuations are reduced.

AB - We report an increase in particle confinement with plasma biasing in a reversed field pinch. Miniature plasma sources are used as electrodes to negatively bias the plasma at the edge (r/a∼0.9) Particle content increases and Hα radiation decreases upon application of bias and global particle confinement roughly doubles as a result. Energy confinement is not significantly affected by biasing the edge. Measurements of plasma potential, impurity flow, and floating potential fluctuations indicate that strong flows are produced and that electrostatic fluctuations are reduced.

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U2 - 10.1103/PhysRevLett.79.1865

DO - 10.1103/PhysRevLett.79.1865

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VL - 79

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EP - 1868

JO - Physical review letters

JF - Physical review letters

IS - 10

ER -

Enhanced confinement with plasma biasing in the MST reversed field pinch

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All Science Journal Classification (ASJC) codes

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