Overview of fuel inventory in JET with the ITER-like wall

A. Widdowson; J.P. Coad; E. Alves; A. Baron-Wiechec; N.P. Barradas; S. Brezinsek; N. Catarino; V. Corregidor; K. Heinola; Seppo Koivuranta; S. Krat; A. Lahtinen; Jari Likonen; G.F. Matthews; M. Mayer; P. Petersson; M. Rubel; JET Contributors

doi:10.1088/1741-4326/aa7475

Overview of fuel inventory in JET with the ITER-like wall

A. Widdowson, J.P. Coad, E. Alves, A. Baron-Wiechec, N.P. Barradas, S. Brezinsek, N. Catarino, V. Corregidor, K. Heinola, Seppo Koivuranta, S. Krat, A. Lahtinen, Jari Likonen, G.F. Matthews, M. Mayer, P. Petersson, M. Rubel, JET Contributors

Research output: Contribution to journal › Article › Scientific › peer-review

55 Citations (Scopus)

Abstract

Post mortem analyses of JET ITER-Like-Wall tiles and passive diagnostics have been completed after each of the first two campaigns (ILW-1 and ILW-2). They show that the global fuel inventory is still dominated by co-deposition; hence plasma parameters and sputtering processes affecting material migration influence the distribution of retained fuel. In particular, differences between results from the two campaigns may be attributed to a greater proportion of pulses run with strike points in the divertor corners, and having about 300 discharges in hydrogen at the end of ILW-2. Recessed and remote areas can contribute to fuel retention due to the larger areas involved, e.g. recessed main chamber walls, gaps in castellated Be main chamber tiles and material migration to remote divertor areas. The fuel retention and material migration due to the bulk W Tile 5 during ILW-1 are presented. Overall these tiles account for only a small percentage of the global accountancy for ILW-1.

Original language	English
Article number	086045
Journal	Nuclear Fusion
Volume	57
Issue number	8
Early online date	2017
DOIs	https://doi.org/10.1088/1741-4326/aa7475
Publication status	Published - 17 Jul 2017
MoE publication type	A1 Journal article-refereed

Keywords

JET ITER-like wall
fuel retention
material migration

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1088/1741-4326/aa7475

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Widdowson, A., Coad, J. P., Alves, E., Baron-Wiechec, A., Barradas, N. P., Brezinsek, S., Catarino, N., Corregidor, V., Heinola, K., Koivuranta, S., Krat, S., Lahtinen, A., Likonen, J., Matthews, G. F., Mayer, M., Petersson, P., Rubel, M., & JET Contributors (2017). Overview of fuel inventory in JET with the ITER-like wall. Nuclear Fusion, 57(8), Article 086045. https://doi.org/10.1088/1741-4326/aa7475

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abstract = "Post mortem analyses of JET ITER-Like-Wall tiles and passive diagnostics have been completed after each of the first two campaigns (ILW-1 and ILW-2). They show that the global fuel inventory is still dominated by co-deposition; hence plasma parameters and sputtering processes affecting material migration influence the distribution of retained fuel. In particular, differences between results from the two campaigns may be attributed to a greater proportion of pulses run with strike points in the divertor corners, and having about 300 discharges in hydrogen at the end of ILW-2. Recessed and remote areas can contribute to fuel retention due to the larger areas involved, e.g. recessed main chamber walls, gaps in castellated Be main chamber tiles and material migration to remote divertor areas. The fuel retention and material migration due to the bulk W Tile 5 during ILW-1 are presented. Overall these tiles account for only a small percentage of the global accountancy for ILW-1.",

keywords = "JET ITER-like wall, fuel retention, material migration",

author = "A. Widdowson and J.P. Coad and E. Alves and A. Baron-Wiechec and N.P. Barradas and S. Brezinsek and N. Catarino and V. Corregidor and K. Heinola and Seppo Koivuranta and S. Krat and A. Lahtinen and Jari Likonen and G.F. Matthews and M. Mayer and P. Petersson and M. Rubel and {JET Contributors}",

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Widdowson, A, Coad, JP, Alves, E, Baron-Wiechec, A, Barradas, NP, Brezinsek, S, Catarino, N, Corregidor, V, Heinola, K, Koivuranta, S, Krat, S, Lahtinen, A, Likonen, J, Matthews, GF, Mayer, M, Petersson, P, Rubel, M & JET Contributors 2017, 'Overview of fuel inventory in JET with the ITER-like wall', Nuclear Fusion, vol. 57, no. 8, 086045. https://doi.org/10.1088/1741-4326/aa7475

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T1 - Overview of fuel inventory in JET with the ITER-like wall

AU - Widdowson, A.

AU - Coad, J.P.

AU - Alves, E.

AU - Baron-Wiechec, A.

AU - Barradas, N.P.

AU - Brezinsek, S.

AU - Catarino, N.

AU - Corregidor, V.

AU - Heinola, K.

AU - Koivuranta, Seppo

AU - Krat, S.

AU - Lahtinen, A.

AU - Likonen, Jari

AU - Matthews, G.F.

AU - Mayer, M.

AU - Petersson, P.

AU - Rubel, M.

AU - JET Contributors

PY - 2017/7/17

Y1 - 2017/7/17

N2 - Post mortem analyses of JET ITER-Like-Wall tiles and passive diagnostics have been completed after each of the first two campaigns (ILW-1 and ILW-2). They show that the global fuel inventory is still dominated by co-deposition; hence plasma parameters and sputtering processes affecting material migration influence the distribution of retained fuel. In particular, differences between results from the two campaigns may be attributed to a greater proportion of pulses run with strike points in the divertor corners, and having about 300 discharges in hydrogen at the end of ILW-2. Recessed and remote areas can contribute to fuel retention due to the larger areas involved, e.g. recessed main chamber walls, gaps in castellated Be main chamber tiles and material migration to remote divertor areas. The fuel retention and material migration due to the bulk W Tile 5 during ILW-1 are presented. Overall these tiles account for only a small percentage of the global accountancy for ILW-1.

AB - Post mortem analyses of JET ITER-Like-Wall tiles and passive diagnostics have been completed after each of the first two campaigns (ILW-1 and ILW-2). They show that the global fuel inventory is still dominated by co-deposition; hence plasma parameters and sputtering processes affecting material migration influence the distribution of retained fuel. In particular, differences between results from the two campaigns may be attributed to a greater proportion of pulses run with strike points in the divertor corners, and having about 300 discharges in hydrogen at the end of ILW-2. Recessed and remote areas can contribute to fuel retention due to the larger areas involved, e.g. recessed main chamber walls, gaps in castellated Be main chamber tiles and material migration to remote divertor areas. The fuel retention and material migration due to the bulk W Tile 5 during ILW-1 are presented. Overall these tiles account for only a small percentage of the global accountancy for ILW-1.

KW - JET ITER-like wall

KW - fuel retention

KW - material migration

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DO - 10.1088/1741-4326/aa7475

M3 - Article

SN - 0029-5515

VL - 57

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 8

M1 - 086045

ER -

Overview of fuel inventory in JET with the ITER-like wall

Abstract

Keywords

UN SDGs

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