Comparison of JET main chamber erosion with dust collected in the divertor

A. Widdowson; C.F. Ayres; S. Booth; Paul Coad; Antti Hakola; K. Heinola; D. Ivanova; Seppo Koivuranta; Jari Likonen; M. Mayer; M. Stamp; JET-EFDA contributors

doi:10.1016/j.jnucmat.2013.01.179

Comparison of JET main chamber erosion with dust collected in the divertor

A. Widdowson (Corresponding Author), C.F. Ayres, S. Booth, Paul Coad, Antti Hakola, K. Heinola, D. Ivanova, Seppo Koivuranta, Jari Likonen, M. Mayer, M. Stamp, JET-EFDA contributors

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Abstract

A complete global balance for carbon in JET requires knowledge of the net erosion in the main chamber, net deposition in the divertor and the amount of dust and flakes collecting in the divertor region. This paper describes a number of measurements on aspects of this global picture. Profiler measurements and cross section microscopy on tiles that were removed in the 2009 JET intervention are used to evaluate the net erosion in the main chamber and net deposition in the divertor. In addition the mass of dust and flakes collected from the JET divertor during the same intervention is also reported and included as part of the balance. Spectroscopic measurements of carbon erosion from the main chamber are presented and compared with the erosion measurements for the main chamber.

Original language	English
Pages (from-to)	S827-S832
Journal	Journal of Nuclear Materials
Volume	438
Issue number	Supplement
DOIs	https://doi.org/10.1016/j.jnucmat.2013.01.179
Publication status	Published - 2013
MoE publication type	A1 Journal article-refereed
Event	20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices - Aachen, Aachen, Germany Duration: 21 May 2012 → 25 May 2012

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title = "Comparison of JET main chamber erosion with dust collected in the divertor",

abstract = "A complete global balance for carbon in JET requires knowledge of the net erosion in the main chamber, net deposition in the divertor and the amount of dust and flakes collecting in the divertor region. This paper describes a number of measurements on aspects of this global picture. Profiler measurements and cross section microscopy on tiles that were removed in the 2009 JET intervention are used to evaluate the net erosion in the main chamber and net deposition in the divertor. In addition the mass of dust and flakes collected from the JET divertor during the same intervention is also reported and included as part of the balance. Spectroscopic measurements of carbon erosion from the main chamber are presented and compared with the erosion measurements for the main chamber.",

author = "A. Widdowson and C.F. Ayres and S. Booth and Paul Coad and Antti Hakola and K. Heinola and D. Ivanova and Seppo Koivuranta and Jari Likonen and M. Mayer and M. Stamp and {JET-EFDA contributors}",

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doi = "10.1016/j.jnucmat.2013.01.179",

language = "English",

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journal = "Journal of Nuclear Materials",

issn = "0022-3115",

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note = "20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, PSI-20 ; Conference date: 21-05-2012 Through 25-05-2012",

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TY - JOUR

T1 - Comparison of JET main chamber erosion with dust collected in the divertor

AU - Widdowson, A.

AU - Ayres, C.F.

AU - Booth, S.

AU - Coad, Paul

AU - Hakola, Antti

AU - Heinola, K.

AU - Ivanova, D.

AU - Koivuranta, Seppo

AU - Likonen, Jari

AU - Mayer, M.

AU - Stamp, M.

AU - JET-EFDA contributors

PY - 2013

Y1 - 2013

N2 - A complete global balance for carbon in JET requires knowledge of the net erosion in the main chamber, net deposition in the divertor and the amount of dust and flakes collecting in the divertor region. This paper describes a number of measurements on aspects of this global picture. Profiler measurements and cross section microscopy on tiles that were removed in the 2009 JET intervention are used to evaluate the net erosion in the main chamber and net deposition in the divertor. In addition the mass of dust and flakes collected from the JET divertor during the same intervention is also reported and included as part of the balance. Spectroscopic measurements of carbon erosion from the main chamber are presented and compared with the erosion measurements for the main chamber.

AB - A complete global balance for carbon in JET requires knowledge of the net erosion in the main chamber, net deposition in the divertor and the amount of dust and flakes collecting in the divertor region. This paper describes a number of measurements on aspects of this global picture. Profiler measurements and cross section microscopy on tiles that were removed in the 2009 JET intervention are used to evaluate the net erosion in the main chamber and net deposition in the divertor. In addition the mass of dust and flakes collected from the JET divertor during the same intervention is also reported and included as part of the balance. Spectroscopic measurements of carbon erosion from the main chamber are presented and compared with the erosion measurements for the main chamber.

U2 - 10.1016/j.jnucmat.2013.01.179

DO - 10.1016/j.jnucmat.2013.01.179

M3 - Article

SN - 0022-3115

VL - 438

SP - S827-S832

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - Supplement

T2 - 20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices

Y2 - 21 May 2012 through 25 May 2012

ER -

Comparison of JET main chamber erosion with dust collected in the divertor

Abstract

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