Time-resolved deposition in the remote region of the JET-ILW divertor: measurements and modelling

被引：8

作者：

Catarino, N. ^{[1
,58
]}

Widdowson, A. ^{[2
]}

Baron-Wiechec, A. ^{[2
]}

Coad, J. P. ^{[2
,12
]}

Heinola, K. ^{[3
,106
]}

Rubel, M. ^{[4
,47
]}

Alves, E. ^{[1
,58
]}

Abduallev, S. ^{[44
]}

Abhangi, M. ^{[51
]}

Abreu, P. ^{[58
]}

Afzal, M. ^{[12
]}

Aggarwal, K. M. ^{[34
]}

Ahlgren, T. ^{[106
]}

Ahn, J. H. ^{[13
]}

Aho-Mantila, L. ^{[116
]}

Aiba, N. ^{[74
]}

Airila, M. ^{[116
]}

Albanese, R. ^{[109
]}

Aldred, V. ^{[12
]}

Alegre, D. ^{[98
]}

Alessi, E. ^{[50
]}

Aleynikov, P. ^{[60
]}

Alfier, A. ^{[17
]}

Alkseev, A. ^{[77
]}

Allinson, M. ^{[12
]}

Alper, B. ^{[12
]}

Alves, E. ^{[1
,58
]}

Ambrosino, G. ^{[109
]}

Ambrosino, R. ^{[110
]}

Amicucci, L. ^{[95
]}

Amosov, V. ^{[93
]}

Sunden, E. Andersson ^{[27
]}

Angelone, M. ^{[95
]}

Anghel, M. ^{[90
]}

Angioni, C. ^{[67
]}

Appel, L. ^{[12
]}

Appelbee, C. ^{[12
]}

Arena, P. ^{[35
]}

Ariola, M. ^{[110
]}

Arnichand, H. ^{[13
]}

Arshad, S. ^{[46
]}

Ash, A. ^{[12
]}

Ashikawa, N. ^{[73
]}

Aslanyan, V. ^{[69
]}

Asunta, O. ^{[6
]}

Auriemma, F. ^{[17
]}

Austin, Y. ^{[12
]}

Avotina, L. ^{[108
]}

Axton, M. D. ^{[12
]}

Ayres, C. ^{[12
]}

机构：

[1] Univ Lisbon, IPFN, Inst Super Tecn, P-1049001 Lisbon, Portugal

[2] Culham Sci Ctr, Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England

[3] Univ Helsinki, POB 64, Helsinki 00560, Finland

[4] Royal Inst Technol, Assoc EURATOM VR, SE-10044 Stockholm, Sweden

[5] EUROfus Consortium, Culham Sci Ctr, JET, Abingdon OX14 3DB, Oxon, England

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

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

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

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

[10] Arizona State Univ, Tempe, AZ USA

[11] Barcelona Supercomp Ctr, Barcelona, Spain

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[37] Dublin City Univ, Dublin, Ireland

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

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

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

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

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

[43] FOM Inst DIFFER, Eindhoven, Netherlands

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

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

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

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

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

[49] HRS Fusion, W Orange, NJ USA

[50] IFP CNR, Via R Cozzi 53, I-20125 Milan, Italy

来源：

PHYSICA SCRIPTA | 2017年 / T170卷

关键词：

JET divertor; sputtering; deposition; beryllium; EROSION;

D O I：

10.1088/1402-4896/aa8c9a

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

One crucial requirement for the development of fusion power is to know where, and how much, impurities collect in the machine, and how much of the fuelling isotope tritium will be trapped therein. The most relevant information on this issue comes from the operation of the Joint European Tokamak (JET), which is the world's largest operating tokamak and has the same interior plasma-facing materials as the next step machine, ITER. Much of the information gained so far has been from post-mortem analysis of samples collected after whole campaigns involving varied types of operation. This paper describes time-resolved measurements of the deposition rate using rotating collectors (RC) placed in remote areas of the JET divertor during the 2013-2014 campaign with the ITER-like Wall (ILW). These techniques allow the effects of different types of operation to be distinguished. Rotating collectors made of silicon discs housed behind an aperture are exposed to the plasma. Each time the magnetic field coils are ramped up for a discharge the disc rotates, providing a linear relationship between the exposed region and the discharge number. Post-mortem ion beam analyses provide information on the deposit composition as a function of the discharge number. The results show that the Be deposition average for the RC in the corners of the inner and outer divertor are 4.9 x 10(16) cm(-2) and 1.8 x 10(17) cm(-2), respectively, accumulated over an average of similar to 25 pulses. Data from the rotating collector below Tile 5 in the central region of divertor indicate a Be deposition rate of 9.3 x 10(15) cm(-2), per similar to 25 pulses.

引用

页数：6

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