Comparison of long term fuel retention in JET between carbon and the ITER-Like Wall

被引：48

作者：

Loarer, T. ^{[2
]}

Brezinsek, S. ^{[3
]}

Philipps, V. ^{[3
]}

Bucalossi, J. ^{[2
]}

Douai, D. ^{[2
]}

Esser, H. G. ^{[3
]}

Grunhagen, S. ^{[4
]}

Hobirk, J. ^{[5
]}

Jachmich, S. ^{[6
]}

Joffrin, E. ^{[2
]}

Kruezi, U. ^{[4
]}

Lowry, C. ^{[4
]}

Matthews, G. ^{[4
]}

Smith, R. ^{[4
]}

Tsitrone, E. ^{[2
]}

Vartanian, S. ^{[2
]}

机构：

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

[2] CEA, IRFM, F-13108 St Paul Les Durance, France

[3] Assoc EURATOM FZJ, Forschungszentrum Julich, Inst Energieforsch Plasmaphys, TEC, D-52425 Julich, Germany

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

[5] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany

[6] Assoc EURATOM Belgian State, ERM KMS, Plasma Phys Lab, B-1000 Brussels, Belgium

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：

Carbon;

D O I：

10.1016/j.jnucmat.2013.01.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Long term fuel retention experiments have been performed in JET with the ITER-Like Wall (JET-ILW) and compared with reference discharges in the preceding phase with carbon wall (JET-C) in ohmic, L and Hmode plasma scenarios. The long term fuel retention is evaluated through global gas balance with an accuracy of 1.2% for series of repetitive pulses (10-25) carried out over a full day of experiments. Compared to carbon wall, with the JET-ILW, for L mode, the retention exhibits also a drop from 1.26 x 1021 Ds x 1 to 4-8 x 1019 Ds x 1. Finally for Type III and type I ELMy H-mode, the retention decreases from 1.37 x 10(21) Ds x 1 to 7.2 x 1019 Ds x 1 and from 1.7 x 1021 Ds x 1 to 2.7 x 1020 Ds x 1 respectively. The retention rates with the JET-ILW exhibit a decrease by a factor of about 10 compared to JET-C attributed to a reduction of carbon impurities and less fuel content in Be codeposition. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：S108 / S113

页数：6