Erosion and deposition in the JET divertor during the second ITER-like wall campaign

被引：32

作者：

Mayer, M. ^{[1
,68
]}

Krat, S. ^{[1
,2
]}

Baron-Wiechec, A. ^{[3
]}

Gasparyan, Yu ^{[2
]}

Heinola, K. ^{[4
,107
]}

Koivuranta, S. ^{[5
,117
]}

Likonen, J. ^{[5
,117
]}

Ruset, C. ^{[6
,92
]}

de Saint-Aubin, G. ^{[1
]}

Widdowson, A. ^{[3
]}

Abduallev, S. ^{[45
]}

Abhangi, M. ^{[52
]}

Abreu, P. ^{[59
]}

Afzal, M. ^{[13
]}

Aggarwal, K. M. ^{[35
]}

Ahlgren, T. ^{[107
]}

Ahn, J. H. ^{[14
]}

Aho-Mantila, L. ^{[117
]}

Aiba, N. ^{[75
]}

Airila, M. ^{[117
]}

Albanese, R. ^{[110
]}

Aldred, V. ^{[13
]}

Alegre, D. ^{[99
]}

Alessi, E. ^{[51
]}

Aleynikov, P. ^{[61
]}

Alfier, A. ^{[18
]}

Alkseev, A. ^{[78
]}

Allinson, M. ^{[13
]}

Alper, B. ^{[13
]}

Alves, E. ^{[59
]}

Ambrosino, G. ^{[110
]}

Ambrosino, R. ^{[111
]}

Amicucci, L. ^{[96
]}

Amosov, V. ^{[94
]}

Sunden, E. Andersson ^{[28
]}

Angelone, M. ^{[96
]}

Anghel, M. ^{[91
]}

Angioni, C. ^{[68
]}

Appel, L. ^{[13
]}

Appelbee, C. ^{[13
]}

Arena, P. ^{[36
]}

Ariola, M. ^{[111
]}

Arnichand, H. ^{[14
]}

Arshad, S. ^{[47
]}

Ash, A. ^{[13
]}

Ashikawa, N. ^{[74
]}

Aslanyan, V. ^{[70
]}

Asunta, O. ^{[7
]}

Auriemma, F. ^{[18
]}

Austin, Y. ^{[13
]}

机构：

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

[2] Natl Res Nucl Univ, MEPhI Moscow Engn Phys Inst, Moscow, Russia

[3] Culham Sci Ctr, Culham Ctr Fus Energy, Abingdon, Oxon, England

[4] Univ Helsinki, Helsinki, Finland

[5] VTT Tech Res Ctr Finland, Espoo, Finland

[6] Natl Inst Laser Plasma & Radiat Phys, Bucharest, Romania

[7] Aalto Univ, POB 14100, FIN-00076 Aalto, Finland

[8] Aix Marseille Univ, CNRS, Ctr Marseille, M2P2 UMR 7340, F-13451 Marseille, France

[9] Aix Marseille Univ, CNRS, IUSTI UMR 7343, F-13013 Marseille, France

[10] Aix Marseille Univ, CNRS, PIIM, UMR 7345, F-13013 Marseille, France

[11] Arizona State Univ, Tempe, AZ USA

[12] Barcelona Supercomp Ctr, Barcelona, Spain

[13] CCFE Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

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

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

[16] Ctr Brasileiro Pesquisas Fis, Rua Xavier Sigaud 160, BR-22290180 Rio De Janeiro, Brazil

[17] Consorzio CREATE, Via Claudio 21, I-80125 Naples, Italy

[18] Consorzio RFX, Corso Stati Uniti 4, I-35127 Padua, Italy

[19] Daegu Univ, Gyongsan 712174, Gyeongbuk, South Korea

[20] Univ Carlos III Madrid, Dept Fis, Madrid 28911, Spain

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

[22] Chalmers Univ Technol, Dept Earth & Space Sci, SE-41296 Gothenburg, Sweden

[23] Univ Cagliari, Dept Elect & Elect Engn, Piazza Armi 09123, Cagliari, Italy

[24] Comenius Univ, Dept Expt Phys, Fac Math Phys & Informat, Mlynska Dolina F2, Bratislava 84248, Slovakia

[25] Warsaw Univ Technol, Dept Mat Sci, PL-01152 Warsaw, Poland

[26] Korea Adv Inst Sci & Technol, Dept Nucl & Quantum Engn, Daejeon 34141, South Korea

[27] Univ Strathclyde, Dept Phys & Appl Phys, Glasgow G4 ONG, Lanark, Scotland

[28] Uppsala Univ, Dept Phys & Astron, SE-75120 Uppsala, Sweden

[29] Chalmers Univ Technol, Dept Phys, S-41296 Gothenburg, Sweden

[30] Imperial Coll London, Dept Phys, London SW7 2AZ, England

[31] KTH, SCI, Dept Phys, SE-10691 Stockholm, Sweden

[32] Univ Basel, Dept Phys, Basel, Switzerland

[33] Univ Oxford, Dept Phys, Oxford OX1 2JD, England

[34] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[35] Queens Univ, Dept Pure & Appl Phys, Belfast BT7 1NN, Antrim, North Ireland

[36] Univ Catania, Dipartimento Ingn Elettr Elettron & Informat, I-95125 Catania, Italy

[37] Univ Trento, Dipartimento Ingn Ind, Trento, Italy

[38] Dublin City Univ, Dublin, Ireland

[39] Swiss Plasma Ctr, EPFL, CH-1015 Lausanne, Switzerland

[40] EUROfus Programme Management Unit, Boltzmannstr 2, D-85748 Garching, Germany

[41] Culham Sci Ctr, EUROfus Programme Management Unit, Culham OX14 3DB, England

[42] European Commiss, B-1049 Brussels, Belgium

[43] ULB, Fluid & Plasma Dynam, Campus Plaine CP 231 Blvd Triomphe, B-1050 Brussels, Belgium

[44] FOM Inst DIFFER, Eindhoven, Netherlands

[45] Forschungszentrum Julich GmbH, Inst Energie & Klimaforsch Plasmaphys, D-52425 Julich, Germany

[46] Fourth State Res, 503 Lockhart Dr, Austin, TX USA

[47] Fus Energy Joint Undertaking, Josep Pl 2,Torres Diagonal Litoral B3, Barcelona 08019, Spain

[48] KTH, Fusion Plasma Phys, EES, SE-10044 Stockholm, Sweden

[49] Gen Atom, POB 85608, San Diego, CA 92186 USA

[50] HRS Fusion, W Orange, NJ USA

来源：

PHYSICA SCRIPTA | 2017年 / T170卷

关键词：

JET-ILW; material erosion; material deposition; surface analysis; divertor; ION-BEAM ANALYSIS; INNER WALL;

D O I：

10.1088/1402-4896/aa8ff9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Erosion of plasma-facing materials and successive transport and redeposition of eroded material are crucial processes determining the lifetime of plasma-facing components and the trapped tritium inventory in redeposited material layers. Erosion and deposition in the JET divertor were studied during the second JET ITER-like wall campaign ILW-2 in 2013-2014 by using a poloidal row of specially prepared divertor marker tiles including the tungsten bulk tile 5. The marker tiles were analyzed using elastic backscattering with 3-4.5 MeV incident protons and nuclear reaction analysis using 0.8-4.5 MeV He-3 ions before and after the campaign. The erosion/deposition pattern observed during ILW-2 is qualitatively comparable to the first campaign ILW-1 in 2011-2012: deposits consist mainly of beryllium with 5-20 at.% of carbon and oxygen and small amounts of Ni and W. The highest deposition with deposited layer thicknesses up to 30 mu m per campaign is still observed on the upper and horizontal parts of the inner divertor. Outer divertor tiles 5, 6, 7 and 8 are net W erosion areas. The observed D inventory is roughly comparable to the inventory observed during ILW-1. The results obtained during ILW-2 therefore confirm the positive results observed in ILW-1 with respect to reduced material deposition and hydrogen isotopes retention in the divertor.

引用

页数：8

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