Spectroscopic measurements of Be erosion at JET ILW and interpretation with ERO modelling

被引：27

作者：

Borodin, D. ^{[2
]}

Stamp, M. F. ^{[3
]}

Kirschner, A. ^{[2
]}

Bjoerkas, C. ^{[2
,4
]}

Brezinsek, S. ^{[2
]}

Miettunen, J. ^{[5
]}

Matveev, D. ^{[2
]}

Silva, C. ^{[6
]}

Van Hoey, O. ^{[7
]}

Groth, M. ^{[5
]}

Marsen, S. ^{[8
]}

Philipps, V. ^{[2
]}

机构：

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

[2] Assoc EURATOM FZJ, Forschungszentrum Julich GmbH, Inst Energy & Climate Res Plasma Phys, Julich, Germany

[3] EURATOM CCFE Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[4] Univ Helsinki, Dept Phys, EURATOM Tekes, FI-00014 Helsinki, Finland

[5] Aalto Univ, EURATOM Tekes, Espoo, Finland

[6] Assoc Euratom IST, Inst Plasmas & Fusao Nucl, Inst Super Tecn, Lisbon, Portugal

[7] Univ Ghent, Dept Appl Phys, B-9000 Ghent, Belgium

[8] EURATOM, Max Planck Inst Plasma Phys, Greifswald, Germany

来源：

JOURNAL OF NUCLEAR MATERIALS | 2013年 / 438卷

基金：

英国工程与自然科学研究理事会;

关键词：

Plasma devices - Electric discharges - Beryllium - Electromagnetic fields;

D O I：

10.1016/j.jnucmat.2013.01.043

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Beryllium (Be) erosion has been studied in dedicated limiter discharges in JET with the recently installed ITER-like wall [1]. Passive spectroscopy [2] in the vicinity of the solid Be limiter is used for measurement of the Be physical sputtering as the main erosion mechanism. To consider the 3D configuration of plasma parameters and the electromagnetic field, the actual limiter shape and the local transport affecting the fraction of Be coming into the observation volume, a detailed modelling with the ERO code has been applied to interpret the experimental data. The observed dependence of BeI and BeII line intensities on plasma parameters during the density scan and various line ratios are used to validate the model and the underlying data including the recently introduced assumptions for Be physical sputtering, the very same which were used before for ITER predictive modelling [3]. (C) 2013 Published by Elsevier B.V.

引用

页码：S267 / S271

页数：5

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