Simulation of light emission from hydrocarbon injection in TEXTOR using the ERO code

被引：12

作者：

Ding, R. ^{[1
,2
]}

Kirschner, A. ^{[2
]}

Borodin, D. ^{[2
]}

Brezinsek, S. ^{[2
]}

Pospieszczyk, A. ^{[2
]}

Schmitz, O. ^{[2
]}

Philipps, V. ^{[2
]}

Samm, U. ^{[2
]}

Chen, J. ^{[1
]}

Li, J. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China

[2] Assoc EURATOM FZJ, KFA Julich GmbH, Forschungszentrum, Inst Energieforsch Plasmaphys, D-52425 Julich, Germany

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2009年 / 51卷 / 05期

关键词：

CHEMICAL EROSION; FLUX; SPECTROSCOPY; TOKAMAKS; HYDROGEN; IONS;

D O I：

10.1088/0741-3335/51/5/055019

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：

Reaction rate coefficients for higher hydrocarbon molecules (ethane family) have been implemented into the 3D Monte Carlo code ERO, which is used for modelling of hydrocarbon transport and light emission of spectroscopically observable radicals in the edge plasma of fusion experiments. For benchmarking of the ERO modelling, dedicated experiments were carried out at TEXTOR in which different hydrocarbon molecules (CD(4), C(2)D(4) and C(2)D(6)) were injected into the plasma near the last closed flux surface. The light emission of the hydrocarbon break-up products CD, C(2) and C(+) was observed. The modelled penetration depths of the light emission from the CD Geroband, C(2) Swan band and C II are in good agreement with the experiments. The effective inverse photon efficiencies (D/XB values) for CD and C(2), which include the dissociation chains of the initial molecules, are more dependent on local electron temperature than on electron density. The calculated D/XB values are in fair agreement with the experimental ones.

引用

页数：12

共 19 条

[1] MEASUREMENT OF CH4/CD4 FLUXES AND OF CHEMICAL CARBON EROSION FROM CH/CD BAND EMISSION [J].

BEHRINGER, K .

JOURNAL OF NUCLEAR MATERIALS, 1990, 176 :606-610

[2] Vacuum ultraviolet spectroscopy at TEXTOR [J].

Biel, W .

FUSION SCIENCE AND TECHNOLOGY, 2005, 47 (02) :246-252

[3] Hydrocarbon injection for quantification of chemical erosion yields in tokamaks [J].

Brezinsek, S. ;

Pospieszczyk, A. ;

Borodin, D. ;

Stamp, M. F. ;

Pugno, R. ;

McLean, A. G. ;

Fantz, U. ;

Manhard, A. ;

Kallenbach, A. ;

Brooks, N. H. ;

Groth, M. ;

Mertens, Ph. ;

Philipps, V. ;

Samm, U. .

JOURNAL OF NUCLEAR MATERIALS, 2007, 363 :1119-1128

[4] Characterization of the deuterium recycling flux in front of a graphite surface in the TEXTOR tokamak [J].

Brezinsek, S ;

Sergienko, G ;

Pospieszczyk, A ;

Mertens, P ;

Samm, U ;

Greenland, PT .

PLASMA PHYSICS AND CONTROLLED FUSION, 2005, 47 (04) :615-634

[5] Chemical erosion measurements in tokamaks by spectroscopy [J].

Brezinsek, S. ;

Pospieszczyk, A. ;

Kirschner, A. ;

Sergienko, G. ;

Huber, A. ;

Philipps, V. ;

Mertens, Ph. ;

Samm, U. ;

Stamp, M. F. ;

Meigs, A. ;

Greenland, P. T. .

PHYSICA SCRIPTA, 2004, T111 :42-48

[6] RECOMBINATION AND LEVEL POPULATIONS OF IONS .1. HYDROGEN AND HYDROGENIC IONS [J].

BURGESS, A ;

SUMMERS, HP .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1976, 174 (02) :345-391

[7]

CELIBERTO R, 2008, COMMUNICATION, pF516

[8] Correlation of the intensity ratio of C2/CH molecular bands with the flux ratio of C2Hy/CH4 particles [J].

Fantz, U ;

Meir, S .

JOURNAL OF NUCLEAR MATERIALS, 2005, 337 (1-3) :1087-1091

[9]

JANEV R, 2003, JUL4005 FORSCH JULL, pF516

[10]

JANEV R, 2002, JUL3966 FORSCH JUL, pF516

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