Surface analysis of tiles and samples exposed to the first JET campaigns with the ITER-like wall

被引：41
|
作者：
Coad, J. P. [1 ,2 ]
Alves, E. [3 ]
Barradas, N. P. [4 ]
Baron-Wiechec, A. [2 ]
Catarino, N. [3 ]
Heinola, K. [5 ]
Likonen, J. [1 ]
Mayer, M. [6 ]
Matthews, G. F. [2 ]
Petersson, P. [7 ]
Widdowson, A. [2 ]
机构：
[1] VTT, Assoc EURATOM TEKES, FI-02044 Espoo, Finland
[2] EURATOM CCFE Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
[3] Univ Lisbon, Inst Plasmas & Fusao Nucl, Associacao EURATOM IST, P-1049001 Lisbon, Portugal
[4] Univ Lisbon, Ctr Ciencias & Tecnol Nucl, Associacao EURATOM IST, P-2686953 Sacavem, Portugal
[5] Univ Helsinki, EURATOM Assoc, TEKES, FIN-00014 Helsinki, Finland
[6] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany
[7] Royal Inst Technol, Assoc EURATOM VR, Dept Fus Plasma Phys, S-10405 Stockholm, Sweden
[8] JET EFDA, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
来源：
PHYSICA SCRIPTA | 2014年 / T159卷
基金：
英国工程与自然科学研究理事会;
关键词：
divertor materials; beryllium; plasma-materials interaction; re-deposition; DIVERTOR; EROSION; DUST;
D O I：
10.1088/0031-8949/2014/T159/014012
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
This paper reports on the first post-mortem analyses of tiles removed from JET after the first campaigns with the ITER-like wall (ILW) during 2011-12 [1]. Tiles from the divertor have been analysed by ion beam analysis techniques and by secondary ion mass spectrometry to determine the amount of beryllium deposition and deuterium retention in the tiles exposed to the scrape-off layer. Films 10-20 mu m thick were present at the top of tile 1, but only very thin films (<1 mu m) were found in the shadowed areas and on other divertor tiles. The total amount of Be found in the divertor following the ILW campaign was a factor of similar to 9 less than the material deposited in the 2007-09 carbon campaign, after allowing for the longer operations in 2007-09.
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页数：5
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