Revised scaling equation for the prediction of tritium retention in beryllium co-deposited layers

被引：31

作者：

De Temmerman, G. ^{[1
]}

Doerner, R. P. ^{[2
]}

机构：

[1] UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon, Oxon, England

[2] Univ Calif San Diego, Energy Res Ctr, La Jolla, CA 92093 USA

来源：

NUCLEAR FUSION | 2009年 / 49卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

REFLECTION; ION;

D O I：

10.1088/0029-5515/49/4/042002

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：

The prediction of tritium retention in ITER relies on the extrapolation from present data. An empirical equation was proposed in (De Temmerman G. et al 2008 Nucl. Fusion 48 075008) to account for the influence of the beryllium deposition rate, the substrate temperature and the average energy of the deuterium neutrals on the deuterium retention. However, the beryllium deposition rate observed in PISCES-B is much lower than that expected in the ITER divertor. On the other hand, the flux ratios of deuterium and beryllium are comparable in magnitude. Therefore, a revised scaling equation is proposed here to take into account the flux ratio of deuterium to beryllium arriving at the co-depositing surface and to match the validity range of the scaling equation with the ITER parameters.

引用

页数：3

共 11 条

[1] Deuterium retention and release in tungsten co-deposited layers [J].

De Temmerman, G. ;

Doerner, R. P. .

JOURNAL OF NUCLEAR MATERIALS, 2009, 389 (03) :479-483

[2] Insight into the co-deposition of deuterium with beryllium: Influence of the deposition conditions on the deuterium retention and release [J].

De Temmerman, G. ;

Baldwin, M. J. ;

Doerner, R. P. ;

Nishijima, D. ;

Seraydarian, R. ;

Schmid, K. .

JOURNAL OF NUCLEAR MATERIALS, 2009, 390-91 :564-567

[3] An empirical scaling for deuterium retention in co-deposited beryllium layers [J].

De Temmerman, G. ;

Baldwin, M. J. ;

Doerner, R. P. ;

Nishijima, D. ;

Schmid, K. .

NUCLEAR FUSION, 2008, 48 (07)

[4] Codeposition of deuterium with ITER materials [J].

Doerner, R. P. ;

Baldwin, M. J. ;

De Temmerman, G. ;

Hanna, J. ;

Nishijima, D. ;

Roth, J. ;

Schmid, K. ;

Tynan, G. R. ;

Umstadter, K. .

NUCLEAR FUSION, 2009, 49 (03)

[5]

Eckstein Wolfgang., 2002, Calculated sputtering, reflection and range values

[6] Measurement and modeling of molecular ion concentrations in a hydrogen reflex-arc discharge [J].

Hollmann, EM ;

Pigarov, AY .

PHYSICS OF PLASMAS, 2002, 9 (10) :4330-4339

[7] Gas balance and fuel retention in fusion devices [J].

Loarer, T. ;

Brosset, C. ;

Bucalossi, J. ;

Coad, P. ;

Esser, G. ;

Hogan, J. ;

Likonen, J. ;

Mayer, M. ;

Morgan, Ph. ;

Philipps, V. ;

Rohde, V. ;

Roth, J. ;

Rubel, M. ;

Tsitrone, E. ;

Widdowson, A. .

NUCLEAR FUSION, 2007, 47 (09) :1112-1120

[8] Tritium inventory in ITER plasma-facing materials and tritium removal procedures [J].

Roth, Joachim ;

Tsitrone, Emmanuelle ;

Loarer, Thierry ;

Philipps, Volker ;

Brezinsek, Sebastijan ;

Loarte, Alberto ;

Counsell, Glenn F. ;

Doerner, Russell P. ;

Schmid, Klaus ;

Ogorodnikova, Olga V. ;

Causey, Rion A. .

PLASMA PHYSICS AND CONTROLLED FUSION, 2008, 50 (10)

[9] Beryllium flux distribution and layer deposition in the ITER divertor [J].

Schmid, K. .

NUCLEAR FUSION, 2008, 48 (10)

[10] Experiment on atomic hydrogen reflection by use of a permeation probe [J].

Takagi, I ;

Toyoda, K ;

Katayama, M ;

Fujita, H ;

Higashi, K .

JOURNAL OF NUCLEAR MATERIALS, 1998, 258 :1082-1086

← 1 2 →