Numerical analysis of TDS spectra under high and low flux plasma exposure conditions

被引：11

作者：

Grigorev, P. ^{[1
,4
]}

Buzi, L. ^{[3
,4
,5
,6
]}

Bakaeva, A. ^{[1
,4
]}

Terentyev, D. ^{[1
]}

De Temmerman, G. ^{[2
]}

Van Oost, G. ^{[4
]}

Noterdaeme, J-M ^{[4
,7
]}

机构：

[1] CEN SCK, Nucl Mat Sci Inst, Boeretang 200, B-2400 Mol, Belgium

[2] ITER Org, Route Vinon Sur Verdon CS 90 046, F-13067 St Paul Les Durance, France

[3] 3FOM Inst DIFFER, Edisonbaan 14, NL-3439 MN Nieuwegein, Netherlands

[4] Univ Ghent, Dept Appl Phys, St Pietersnieuwstr 41, B-9000 Ghent, Belgium

[5] Forschungszentrum Julich, Inst Energie & Klimaforsch Plasmaphys, Leo Brandt Str, D-52425 Julich, Germany

[6] Univ Lorraine, Inst Jean Lamour, CNRS UMR 7198, Bvd Aiguillettes, F-54506 Vandoeuvre Les Nancy, France

[7] Max Planck Inst Plasma Phys, Garching, Germany

来源：

PHYSICA SCRIPTA | 2016年 / T167卷

关键词：

hydrogen; retention; plasma; blisters; bubbles; DEUTERIUM RETENTION; SURFACE-MORPHOLOGY; TUNGSTEN; HYDROGEN; TEMPERATURE; DEPENDENCE; DIFFUSION; VOIDS;

D O I：

10.1088/0031-8949/T167/1/014039

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A recently developed numerical model, based on the dislocation-driven nucleation of gas bubbles, is used to analyse experimental results on deuterium retention in tungsten under ITER relevant plasma exposure conditions. Focus is placed on understanding the relation between exposure temperature and flux on primary features of thermal desorption spectra: peak positions and intensities of the desorption flux. The model allows one to relate the peak positions with the size of plasma induced deuterium bubbles and envisage exposure conditions (temperature and flux) for their formation. Based on the performed analysis, dedicated experimental conditions to validate the model are proposed.

引用

页数：5

共 18 条

[1] Temperature dependence of surface morphology and deuterium retention in polycrystalline ITER-grade tungsten exposed to low-energy, high-flux D plasma [J].

Alimov, V. Kh. ;

Tyburska-Pueschel, B. ;

Lindig, S. ;

Hatano, Y. ;

Balden, M. ;

Roth, J. ;

Isobe, K. ;

Matsuyama, M. ;

Yamanishi, T. .

JOURNAL OF NUCLEAR MATERIALS, 2012, 420 (1-3) :519-524

[2] Influence of particle flux density and temperature on surface modifications of tungsten and deuterium retention [J].

Buzi, Luxherta ;

De Temmerman, Greg ;

Unterberg, Bernhard ;

Reinhart, Michael ;

Litnovsky, Andrey ;

Philipps, Volker ;

Van Oost, Guido ;

Moeller, Soeren .

JOURNAL OF NUCLEAR MATERIALS, 2014, 455 (1-3) :316-319

[3]

ELEVELD H, 1992, J NUCL MATER, V191, P433

[4] VOID GROWTH AND THERMAL-DESORPTION OF DEUTERIUM FROM VOIDS IN TUNGSTEN [J].

ELEVELD, H ;

VANVEEN, A .

JOURNAL OF NUCLEAR MATERIALS, 1994, 212 :1421-1425

[5] Plasma-material interactions in current tokamaks and their implications for next step fusion reactors [J].

Federici, G ;

Skinner, CH ;

Brooks, JN ;

Coad, JP ;

Grisolia, C ;

Haasz, AA ;

Hassanein, A ;

Philipps, V ;

Pitcher, CS ;

Roth, J ;

Wampler, WR ;

Whyte, DG .

NUCLEAR FUSION, 2001, 41 (12R) :1967-2137

[6] SOLUTION AND DIFFUSION OF HYDROGEN IN TUNGSTEN [J].

FRAUENFELDER, R .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY, 1969, 6 (03) :388-+

[7] Nucleation and growth of hydrogen bubbles on dislocations in tungsten under high flux low energy plasma exposure [J].

Grigorev, Petr ;

Terentyev, Dmitry ;

Dubinko, Vladimir ;

Bonny, Giovanni ;

Van Oost, Guido ;

Noterdaeme, Jean-Marie ;

Zhurkin, Evgeny E. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2015, 352 :96-99

[8] Hydrogen interaction with point defects in tungsten [J].

Heinola, K. ;

Ahlgren, T. ;

Nordlund, K. ;

Keinonen, J. .

PHYSICAL REVIEW B, 2010, 82 (09)

[9] Surface morphology and deuterium retention in tungsten exposed to high flux D plasma at high temperatures [J].

Jia, Y. Z. ;

De Temmerman, G. ;

Luo, G. -N. ;

Xu, H. Y. ;

Li, C. ;

Fu, B. Q. ;

Liu, W. .

JOURNAL OF NUCLEAR MATERIALS, 2015, 457 :213-219

[10] Hydrogen in tungsten: Absorption, diffusion, vacancy trapping, and decohesion [J].

Johnson, Donald F. ;

Carter, Emily A. .

JOURNAL OF MATERIALS RESEARCH, 2010, 25 (02) :315-327

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