Rotation characteristics of main ions and impurity ions in H-mode tokamak plasma

J. Kim; K. H. Burrell; P. Gohil; R. J. Groebner; Y. B. Kim; H. E. St. John; R. P. Seraydarian; M. R. Wade

doi:10.1103/PhysRevLett.72.2199

Rotation characteristics of main ions and impurity ions in H-mode tokamak plasma

J. Kim, K. H. Burrell, P. Gohil, R. J. Groebner, Y. B. Kim, H. E. St. John, R. P. Seraydarian, M. R. Wade

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162 Scopus citations

Abstract

Poloidal and toroidal rotation of the main ions (He2+) and the impurity ions (C6+ and B5+) in H-mode helium plasmas have been measured via charge exchange recombination spectroscopy in the DIII-D tokamak. It was discovered that the main ion poloidal rotation is in the ion diamagnetic drift direction while the impurity ion rotation is in the electron diamagnetic drift direction, in qualitative agreement with the neoclassical theory. The deduced radial electric field in the edge is of the same negative-well shape regardless of which ion species is used, validating the fundamental nature of the electric field in L-H transition phenomenology.

Original language	English
Pages (from-to)	2199-2202
Number of pages	4
Journal	Physical Review Letters
Volume	72
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.72.2199
State	Published - 1994
Externally published	Yes

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10.1103/PhysRevLett.72.2199

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title = "Rotation characteristics of main ions and impurity ions in H-mode tokamak plasma",

abstract = "Poloidal and toroidal rotation of the main ions (He2+) and the impurity ions (C6+ and B5+) in H-mode helium plasmas have been measured via charge exchange recombination spectroscopy in the DIII-D tokamak. It was discovered that the main ion poloidal rotation is in the ion diamagnetic drift direction while the impurity ion rotation is in the electron diamagnetic drift direction, in qualitative agreement with the neoclassical theory. The deduced radial electric field in the edge is of the same negative-well shape regardless of which ion species is used, validating the fundamental nature of the electric field in L-H transition phenomenology.",

author = "J. Kim and Burrell, {K. H.} and P. Gohil and Groebner, {R. J.} and Kim, {Y. B.} and {St. John}, {H. E.} and Seraydarian, {R. P.} and Wade, {M. R.}",

year = "1994",

doi = "10.1103/PhysRevLett.72.2199",

language = "English",

volume = "72",

pages = "2199--2202",

journal = "Physical Review Letters",

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TY - JOUR

T1 - Rotation characteristics of main ions and impurity ions in H-mode tokamak plasma

AU - Kim, J.

AU - Burrell, K. H.

AU - Gohil, P.

AU - Groebner, R. J.

AU - Kim, Y. B.

AU - St. John, H. E.

AU - Seraydarian, R. P.

AU - Wade, M. R.

PY - 1994

Y1 - 1994

N2 - Poloidal and toroidal rotation of the main ions (He2+) and the impurity ions (C6+ and B5+) in H-mode helium plasmas have been measured via charge exchange recombination spectroscopy in the DIII-D tokamak. It was discovered that the main ion poloidal rotation is in the ion diamagnetic drift direction while the impurity ion rotation is in the electron diamagnetic drift direction, in qualitative agreement with the neoclassical theory. The deduced radial electric field in the edge is of the same negative-well shape regardless of which ion species is used, validating the fundamental nature of the electric field in L-H transition phenomenology.

AB - Poloidal and toroidal rotation of the main ions (He2+) and the impurity ions (C6+ and B5+) in H-mode helium plasmas have been measured via charge exchange recombination spectroscopy in the DIII-D tokamak. It was discovered that the main ion poloidal rotation is in the ion diamagnetic drift direction while the impurity ion rotation is in the electron diamagnetic drift direction, in qualitative agreement with the neoclassical theory. The deduced radial electric field in the edge is of the same negative-well shape regardless of which ion species is used, validating the fundamental nature of the electric field in L-H transition phenomenology.

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DO - 10.1103/PhysRevLett.72.2199

M3 - Article

AN - SCOPUS:0141909251

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VL - 72

SP - 2199

EP - 2202

JO - Physical Review Letters

JF - Physical Review Letters

IS - 14

ER -

Rotation characteristics of main ions and impurity ions in H-mode tokamak plasma

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