Technical note on the linearity and power dependence of the diffusion coefficient in W7-AS

M. van Berkel; H. J. Zwart; G.M.D. Hogeweij; M.R. de Baar

doi:10.1088/1361-6587/aa6a2b

Technical note on the linearity and power dependence of the diffusion coefficient in W7-AS

M. van Berkel, H. J. Zwart, G.M.D. Hogeweij, M.R. de Baar

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Abstract

Transient electron temperature measurements of a step power experiment at W7-AS are reassessed by direct comparison of the up- and downward responses of the electron temperature. The analysis shows that the response at some distance to the center behaves linearly and the model predicted responses based on a power-dependent diffusion coefficient that vary from the measured step responses.

Original language	English
Article number	062001
Journal	Plasma physics and controlled fusion
Volume	59
Issue number	6
DOIs	https://doi.org/10.1088/1361-6587/aa6a2b
Publication status	Published - 3 May 2017

Keywords

electron heat transport
perturbative experiments
power dependence
stellarator
step response
W7-AS
22/4 OA procedure

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1088/1361-6587/aa6a2b

van_Berkel_2017_Plasma_Phys._Control._Fusion_59_062001Final published version, 650 KBLicence: Taverne

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abstract = "Transient electron temperature measurements of a step power experiment at W7-AS are reassessed by direct comparison of the up- and downward responses of the electron temperature. The analysis shows that the response at some distance to the center behaves linearly and the model predicted responses based on a power-dependent diffusion coefficient that vary from the measured step responses.",

keywords = "electron heat transport, perturbative experiments, power dependence, stellarator, step response, W7-AS, 22/4 OA procedure",

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AU - Hogeweij, G.M.D.

AU - de Baar, M.R.

PY - 2017/5/3

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N2 - Transient electron temperature measurements of a step power experiment at W7-AS are reassessed by direct comparison of the up- and downward responses of the electron temperature. The analysis shows that the response at some distance to the center behaves linearly and the model predicted responses based on a power-dependent diffusion coefficient that vary from the measured step responses.

AB - Transient electron temperature measurements of a step power experiment at W7-AS are reassessed by direct comparison of the up- and downward responses of the electron temperature. The analysis shows that the response at some distance to the center behaves linearly and the model predicted responses based on a power-dependent diffusion coefficient that vary from the measured step responses.

KW - electron heat transport

KW - perturbative experiments

KW - power dependence

KW - stellarator

KW - step response

KW - W7-AS

KW - 22/4 OA procedure

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Technical note on the linearity and power dependence of the diffusion coefficient in W7-AS

Abstract

Keywords

UN SDGs

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