Be wall sources and migration in L-mode discharges after Be evaporation in the JET tokamak

被引：15

作者：

Krieger, K. ^{[1
]}

Brezinsek, S. ^{[3
]}

Jachmich, S. ^{[2
]}

Lisgo, S. ^{[2
]}

Stamp, M. ^{[2
]}

Esser, H. G.

Kreter, A. ^{[3
]}

Menmuir, S. ^{[4
]}

Mertens, Ph. ^{[3
]}

Philipps, V. ^{[3
]}

Sundelin, P. ^{[4
]}

机构：

[1] Assoc EURATOM IPP, Max Planck Inst Plasmaphys, Garching, Germany

[2] UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[3] FZJ EURATOM Assoc, Inst Energieforsch, Trilateral Euregio Cluster, Julich, Germany

[4] Assoc EURATOM VR Fus Plasma Phys, EES, KTH, Stockholm, Sweden

[5] Culham Sci Ctr, JET EFDA, Abingdon OX14 3DB, Oxon, England

来源：

JOURNAL OF NUCLEAR MATERIALS | 2009年 / 390-91卷

基金：

英国工程与自然科学研究理事会;

关键词：

DIVERTOR; SOL; DEPOSITION; EROSION; CARBON; FLOW;

D O I：

10.1016/j.jnucmat.2009.01.131

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

First wall material erosion and migration after fresh Be evaporation in the JET tokamak were studied in a series of consecutive identical L-mode discharges. The evolution of Be and C wall and divertor sources towards steady state conditions after deposition of a finite amount of Be at the carbon first wall of JET by the beryllium evaporation procedure provides a data set for benchmarking impurity transport simulations. Furthermore the experiment serves as a reference case for comparison of Be erosion to that of the planned ITER-like wall experiment with mainly Be plasma facing components (PFCs) in the main chamber. The experimental results confirm the migration pattern obtained by campaign integrated accounting of impurity sources and sinks, which is characterised by the main chamber wall and outer divertor as erosion dominated zones and migration of eroded material predominantly to the inner divertor where the material is finally deposited at the target plates. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：110 / 114

页数：5

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