Erosion and deposition in the JET MkII-SRP divertor

J.P. Coad (Corresponding Author), P. Andrew, S.K. Erents, D.E. Hole, Jari Likonen, M. Mayer, R. Pitts, M. Rubel, J.D. Strachan, Elizaveta Vainonen-Ahlgren, A. Widdowson

Research output: Contribution to journalArticleScientificpeer-review

30 Citations (Scopus)

Abstract

Carbon-13 labelled methane was injected into the outer divertor during a series of H-mode discharges on the last day of operations with the JET MkII-SRP divertor.
Tiles from around the vessel were removed during the subsequent shutdown and surface deposits were analysed by IBA techniques and SIMS. First attempts to model the pattern of 13C deposition using EDGE2D are reported.
Erosion of W markers at the outer divertor was observed, with implications for the ITER-like wall experiment planned for JET, whilst thin film growth in the same region has been followed by the effect on infra-red measurements.
The composition of thick films deposited at the inner divertor during the MkII-SRP campaign, and the migration to the inner corner of the divertor observed by a quartz micro-balance, provide further information on divertor transport.
Original languageEnglish
Pages (from-to)287-293
JournalJournal of Nuclear Materials
Volume363-365
DOIs
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

Fingerprint

Quartz
Methane
Film growth
Tile
Secondary ion mass spectrometry
Thick films
erosion
Erosion
Carbon
Deposits
Infrared radiation
Thin films
Chemical analysis
Experiments
carbon 13
shutdowns
tiles
markers
secondary ion mass spectrometry
thick films

Keywords

  • erosion
  • deposition
  • divertor
  • surface analysis
  • impurities
  • deuterium inventory
  • JET
  • ITER
  • fusion energy

Cite this

Coad, J. P., Andrew, P., Erents, S. K., Hole, D. E., Likonen, J., Mayer, M., ... Widdowson, A. (2007). Erosion and deposition in the JET MkII-SRP divertor. Journal of Nuclear Materials, 363-365, 287-293. https://doi.org/10.1016/j.jnucmat.2007.01.074
Coad, J.P. ; Andrew, P. ; Erents, S.K. ; Hole, D.E. ; Likonen, Jari ; Mayer, M. ; Pitts, R. ; Rubel, M. ; Strachan, J.D. ; Vainonen-Ahlgren, Elizaveta ; Widdowson, A. / Erosion and deposition in the JET MkII-SRP divertor. In: Journal of Nuclear Materials. 2007 ; Vol. 363-365. pp. 287-293.
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abstract = "Carbon-13 labelled methane was injected into the outer divertor during a series of H-mode discharges on the last day of operations with the JET MkII-SRP divertor. Tiles from around the vessel were removed during the subsequent shutdown and surface deposits were analysed by IBA techniques and SIMS. First attempts to model the pattern of 13C deposition using EDGE2D are reported. Erosion of W markers at the outer divertor was observed, with implications for the ITER-like wall experiment planned for JET, whilst thin film growth in the same region has been followed by the effect on infra-red measurements. The composition of thick films deposited at the inner divertor during the MkII-SRP campaign, and the migration to the inner corner of the divertor observed by a quartz micro-balance, provide further information on divertor transport.",
keywords = "erosion, deposition, divertor, surface analysis, impurities, deuterium inventory, JET, ITER, fusion energy",
author = "J.P. Coad and P. Andrew and S.K. Erents and D.E. Hole and Jari Likonen and M. Mayer and R. Pitts and M. Rubel and J.D. Strachan and Elizaveta Vainonen-Ahlgren and A. Widdowson",
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Coad, JP, Andrew, P, Erents, SK, Hole, DE, Likonen, J, Mayer, M, Pitts, R, Rubel, M, Strachan, JD, Vainonen-Ahlgren, E & Widdowson, A 2007, 'Erosion and deposition in the JET MkII-SRP divertor', Journal of Nuclear Materials, vol. 363-365, pp. 287-293. https://doi.org/10.1016/j.jnucmat.2007.01.074

Erosion and deposition in the JET MkII-SRP divertor. / Coad, J.P. (Corresponding Author); Andrew, P.; Erents, S.K.; Hole, D.E.; Likonen, Jari; Mayer, M.; Pitts, R.; Rubel, M.; Strachan, J.D.; Vainonen-Ahlgren, Elizaveta; Widdowson, A.

In: Journal of Nuclear Materials, Vol. 363-365, 2007, p. 287-293.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Erosion and deposition in the JET MkII-SRP divertor

AU - Coad, J.P.

AU - Andrew, P.

AU - Erents, S.K.

AU - Hole, D.E.

AU - Likonen, Jari

AU - Mayer, M.

AU - Pitts, R.

AU - Rubel, M.

AU - Strachan, J.D.

AU - Vainonen-Ahlgren, Elizaveta

AU - Widdowson, A.

PY - 2007

Y1 - 2007

N2 - Carbon-13 labelled methane was injected into the outer divertor during a series of H-mode discharges on the last day of operations with the JET MkII-SRP divertor. Tiles from around the vessel were removed during the subsequent shutdown and surface deposits were analysed by IBA techniques and SIMS. First attempts to model the pattern of 13C deposition using EDGE2D are reported. Erosion of W markers at the outer divertor was observed, with implications for the ITER-like wall experiment planned for JET, whilst thin film growth in the same region has been followed by the effect on infra-red measurements. The composition of thick films deposited at the inner divertor during the MkII-SRP campaign, and the migration to the inner corner of the divertor observed by a quartz micro-balance, provide further information on divertor transport.

AB - Carbon-13 labelled methane was injected into the outer divertor during a series of H-mode discharges on the last day of operations with the JET MkII-SRP divertor. Tiles from around the vessel were removed during the subsequent shutdown and surface deposits were analysed by IBA techniques and SIMS. First attempts to model the pattern of 13C deposition using EDGE2D are reported. Erosion of W markers at the outer divertor was observed, with implications for the ITER-like wall experiment planned for JET, whilst thin film growth in the same region has been followed by the effect on infra-red measurements. The composition of thick films deposited at the inner divertor during the MkII-SRP campaign, and the migration to the inner corner of the divertor observed by a quartz micro-balance, provide further information on divertor transport.

KW - erosion

KW - deposition

KW - divertor

KW - surface analysis

KW - impurities

KW - deuterium inventory

KW - JET

KW - ITER

KW - fusion energy

U2 - 10.1016/j.jnucmat.2007.01.074

DO - 10.1016/j.jnucmat.2007.01.074

M3 - Article

VL - 363-365

SP - 287

EP - 293

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

ER -