On the role of neutral particles on edge turbulence and electric fields in the Advanced Toroidal Facility

C. Hidalgo; B. Brañas; T. Uckan; J. H. Harris; R. Isler; Ch P. Ritz; A. Wootton

doi:10.1063/1.870556

On the role of neutral particles on edge turbulence and electric fields in the Advanced Toroidal Facility

C. Hidalgo, B. Brañas, T. Uckan, J. H. Harris, R. Isler, Ch P. Ritz, A. Wootton

Power Exhaust and Particle Control

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Abstract

Measurements of edge plasma turbulence properties have been carried out in the Advanced Toroidal Facility (ATF) [Fusion Technol. 10, 179 (1986)] during experiments in which hydrogen and neon gas puffing are used to vary the edge temperature in the range 5 < T_e < 40 eV in a controlled way. In the temperature range where the rate coefficients for ionization processes are strongly temperature dependent (5 < T_e < 15 eV) the electron temperature plays an important role in determining the level of edge turbulence and the value of the self-generated radial electric fields. These results provide evidence of edge turbulence and flows modified by the presence of neutral particles.

Original language	English
Pages (from-to)	3-5
Number of pages	3
Journal	Physics of Plasmas
Volume	1
Issue number	1
DOIs	https://doi.org/10.1063/1.870556
State	Published - 1994

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10.1063/1.870556

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abstract = "Measurements of edge plasma turbulence properties have been carried out in the Advanced Toroidal Facility (ATF) [Fusion Technol. 10, 179 (1986)] during experiments in which hydrogen and neon gas puffing are used to vary the edge temperature in the range 5 < Te < 40 eV in a controlled way. In the temperature range where the rate coefficients for ionization processes are strongly temperature dependent (5 < Te < 15 eV) the electron temperature plays an important role in determining the level of edge turbulence and the value of the self-generated radial electric fields. These results provide evidence of edge turbulence and flows modified by the presence of neutral particles.",

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AU - Hidalgo, C.

AU - Brañas, B.

AU - Uckan, T.

AU - Harris, J. H.

AU - Isler, R.

AU - Ritz, Ch P.

AU - Wootton, A.

PY - 1994

Y1 - 1994

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AB - Measurements of edge plasma turbulence properties have been carried out in the Advanced Toroidal Facility (ATF) [Fusion Technol. 10, 179 (1986)] during experiments in which hydrogen and neon gas puffing are used to vary the edge temperature in the range 5 < Te < 40 eV in a controlled way. In the temperature range where the rate coefficients for ionization processes are strongly temperature dependent (5 < Te < 15 eV) the electron temperature plays an important role in determining the level of edge turbulence and the value of the self-generated radial electric fields. These results provide evidence of edge turbulence and flows modified by the presence of neutral particles.

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On the role of neutral particles on edge turbulence and electric fields in the Advanced Toroidal Facility

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