Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experiment

A. L. Rosenberg; J. E. Menard; J. R. Wilson; S. S. Medley; R. Andre; C. K. Phillips; D. S. Darrow; B. P. LeBlanc; M. H. Redi; N. J. Fisch; R. W. Harvey; T. K. Mau; E. F. Jaeger; P. M. Ryan; D. W. Swain; S. A. Sabbagh; J. Egedal

doi:10.1063/1.1651099

Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experiment

A. L. Rosenberg, J. E. Menard, J. R. Wilson, S. S. Medley, R. Andre, C. K. Phillips, D. S. Darrow, B. P. LeBlanc, M. H. Redi, N. J. Fisch, R. W. Harvey, T. K. Mau, E. F. Jaeger, P. M. Ryan, D. W. Swain, S. A. Sabbagh, J. Egedal

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Abstract

The phenomena of ion absorption of the high harmonic fast wave in a spherical torus was investigated. It was observed that the rf-induced fast ion tail strength and neutron rate at lower B-fields were less enhanced due to a larger β profile. The absorption by fast ions was predicted to be competitive with electron absorption. The study revealed that under some conditions when neutral beam and rf power are injected into the plasma simultaneously, a fast ion population with energy above the beam injection energy is sustained by the wave.

Original language	English (US)
Pages (from-to)	2441-2452
Number of pages	12
Journal	Physics of Plasmas
Volume	11
Issue number	5 PART 2
DOIs	https://doi.org/10.1063/1.1651099
State	Published - May 2004

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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Rosenberg, A. L., Menard, J. E., Wilson, J. R., Medley, S. S., Andre, R., Phillips, C. K., Darrow, D. S., LeBlanc, B. P., Redi, M. H., Fisch, N. J., Harvey, R. W., Mau, T. K., Jaeger, E. F., Ryan, P. M., Swain, D. W., Sabbagh, S. A., & Egedal, J. (2004). Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experiment. Physics of Plasmas, 11(5 PART 2), 2441-2452. https://doi.org/10.1063/1.1651099

@article{48baeb0c83854a648ebaa66533849834,

title = "Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experiment",

abstract = "The phenomena of ion absorption of the high harmonic fast wave in a spherical torus was investigated. It was observed that the rf-induced fast ion tail strength and neutron rate at lower B-fields were less enhanced due to a larger β profile. The absorption by fast ions was predicted to be competitive with electron absorption. The study revealed that under some conditions when neutral beam and rf power are injected into the plasma simultaneously, a fast ion population with energy above the beam injection energy is sustained by the wave.",

author = "Rosenberg, {A. L.} and Menard, {J. E.} and Wilson, {J. R.} and Medley, {S. S.} and R. Andre and Phillips, {C. K.} and Darrow, {D. S.} and LeBlanc, {B. P.} and Redi, {M. H.} and Fisch, {N. J.} and Harvey, {R. W.} and Mau, {T. K.} and Jaeger, {E. F.} and Ryan, {P. M.} and Swain, {D. W.} and Sabbagh, {S. A.} and J. Egedal",

year = "2004",

month = may,

doi = "10.1063/1.1651099",

language = "English (US)",

volume = "11",

pages = "2441--2452",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "5 PART 2",

}

Rosenberg, AL, Menard, JE, Wilson, JR, Medley, SS, Andre, R, Phillips, CK, Darrow, DS, LeBlanc, BP, Redi, MH, Fisch, NJ, Harvey, RW, Mau, TK, Jaeger, EF, Ryan, PM, Swain, DW, Sabbagh, SA & Egedal, J 2004, 'Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experiment', Physics of Plasmas, vol. 11, no. 5 PART 2, pp. 2441-2452. https://doi.org/10.1063/1.1651099

TY - JOUR

T1 - Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experiment

AU - Rosenberg, A. L.

AU - Menard, J. E.

AU - Wilson, J. R.

AU - Medley, S. S.

AU - Andre, R.

AU - Phillips, C. K.

AU - Darrow, D. S.

AU - LeBlanc, B. P.

AU - Redi, M. H.

AU - Fisch, N. J.

AU - Harvey, R. W.

AU - Mau, T. K.

AU - Jaeger, E. F.

AU - Ryan, P. M.

AU - Swain, D. W.

AU - Sabbagh, S. A.

AU - Egedal, J.

PY - 2004/5

Y1 - 2004/5

N2 - The phenomena of ion absorption of the high harmonic fast wave in a spherical torus was investigated. It was observed that the rf-induced fast ion tail strength and neutron rate at lower B-fields were less enhanced due to a larger β profile. The absorption by fast ions was predicted to be competitive with electron absorption. The study revealed that under some conditions when neutral beam and rf power are injected into the plasma simultaneously, a fast ion population with energy above the beam injection energy is sustained by the wave.

AB - The phenomena of ion absorption of the high harmonic fast wave in a spherical torus was investigated. It was observed that the rf-induced fast ion tail strength and neutron rate at lower B-fields were less enhanced due to a larger β profile. The absorption by fast ions was predicted to be competitive with electron absorption. The study revealed that under some conditions when neutral beam and rf power are injected into the plasma simultaneously, a fast ion population with energy above the beam injection energy is sustained by the wave.

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U2 - 10.1063/1.1651099

DO - 10.1063/1.1651099

M3 - Article

AN - SCOPUS:2942547745

SN - 1070-664X

VL - 11

SP - 2441

EP - 2452

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 5 PART 2

ER -

Fast ion absorption of the high harmonic fast wave in the National Spherical Torus Experiment

Abstract

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