Deuterium in-vessel retention characterisation through the use of particle balance on Tore Supra

被引：15

作者：

Bucalossi, J. ^{[1
]}

Brosset, C. ^{[1
]}

Ngouri, B. ^{[1
]}

Tsitrone, E. ^{[1
]}

Dufour, E. ^{[1
]}

Eckedahl, A. ^{[1
]}

Geraud, A. ^{[1
]}

Goniche, M. ^{[1
]}

Gunn, J. ^{[1
]}

Loarer, T. ^{[1
]}

Monier-Garbet, P. ^{[1
]}

Vallet, J. C. ^{[1
]}

Vartanian, S. ^{[1
]}

机构：

[1] CEA Cadarache, CEA DSM DRFC, Assoc EURATOM CEA, F-13108 St Paul Les Durance, France

来源：

JOURNAL OF NUCLEAR MATERIALS | 2007年 / 363卷

关键词：

particle balance; deuterium inventory; retention; gas injection and fueling; Tore Supra;

D O I：

10.1016/j.jnucmat.2007.01.071

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fuel retention inside plasma facing components will be a crucial issue not only in fusion reactors of the future, but also in ITER. The estimation of the fraction of the fuel which remains trapped inside the vessel is quite a difficult task. Particle balance analysis provides information for the whole vacuum chamber as a function of time and can be use to monitor the tritium in-vessel retention in real-time. On Tore Supra with a careful choice and position of pressure sensors, proper calibration procedures, the accuracy of the balance is around 10%. Particle balance analysis have been performed on many long pulse discharges and deuterium in-vessel retention has been found to be a constant around 5 x 10(20) D/s after several minutes of plasma. The evolution of the retention rate with plasma parameters indicates that deuterium bulk implantation and diffusion could dominate codeposition with carbon atoms. Particle balance is a powerful tool that should be implemented in ITER. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：759 / 763

页数：5

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