Heat wave experiments on TJ-II flexible heliac

被引：37

作者：

Eguilior, S ^{[1
]}

Castejón, F ^{[1
]}

de la Luna, E ^{[1
]}

Cappa, A ^{[1
]}

Likin, K ^{[1
]}

Fernández, A ^{[1
]}

机构：

[1] CIEMAT Fus, Asociac Euratom, Lab Nacl Fus, Madrid 28040, Spain

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2003年 / 45卷 / 02期

关键词：

D O I：

10.1088/0741-3335/45/2/303

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Heat wave experiments are performed on TJ-II stellarator plasmas to estimate both heat diffusivity and power deposition profiles. High frequency electron cyclotron resonance heating (ECRH) modulation experiments are used to obtain the power deposition profile, which is observed to be wider and duller than that estimated by ray tracing techniques. The causes of this difference are discussed in the paper. Fourier analysis techniques are used to estimate the heat diffusivity in low frequency ECRH modulation experiments. This includes the power deposition profile as a new ingredient. ECRH switch-on/off experiments are exploited to obtain power deposition and heat diffusivities profiles. These quantities are compared with those obtained by modulation experiments and transport analysis, showing good agreement.

引用

页码：105 / 120

页数：16

共 25 条

[1] MICROWAVE-ABSORPTION IN STELLARATORS WITH A NON-MAXWELLIAN ELECTRON-DISTRIBUTION FUNCTION [J].

ALEJALDRE, C ;

CASTEJON, F .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1989, 1 (11) :2201-2206

[2] RECONSTRUCTION OF TRANSPORT-COEFFICIENTS FROM TOKAMAK EXPERIMENTAL-DATA [J].

ANDREEV, VF ;

DNESTROVSKIJ, YN ;

POPOV, AM .

NUCLEAR FUSION, 1993, 33 (03) :499-504

[3]

ANDREEV VF, 1999, P 26 EPS C CONTR FUS

[4] Atomic beam diagnostics for characterization of edge plasma in TJ-II stellarator [J].

Brañas, B ;

Tafalla, D ;

Tabarés, FL ;

Ortiz, P .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (01) :602-606

[5]

CARDOZO NJL, 1990, PLASMA PHYS CONTROL, V11, P983

[6]

Carslaw H. S., 1959, CONDUCTION HEAT SOLI

[7] Enhanced heat confinement in the flexible heliac TJ-II [J].

Castejón, F ;

Tribaldos, V ;

García-Cortés, I ;

de la Luna, E ;

Herranz, J ;

Pastor, I ;

Estrada, T .

NUCLEAR FUSION, 2002, 42 (03) :271-280

[8]

CASTEJON F, 1999, P 26 EPS C CONTR FUS

[9] THERMAL-WAVE STUDIES OF ELECTRON-TRANSPORT USING MODULATED ECRH [J].

COX, M ;

DELIYANAKIS, N ;

HUGILL, J ;

ROBINSON, DC ;

ASHRAF, M ;

FIELDING, SJ ;

LEAN, HW ;

MANTICA, P ;

MILLAR, W ;

OBRIEN, MR ;

PARHAM, BJ ;

PITTS, RA ;

SIMONETTO, A ;

VAYAKIS, G .

NUCLEAR FUSION, 1993, 33 (11) :1657-1676

[10] Multichannel electron cyclotron emission radiometry in TJ-II stellarator [J].

de la Luna, E ;

Sánchez, J ;

Tribaldos, V ;

Estrada, T .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (01) :379-382

← 1 2 3 →