Distribution of hydrogen isotopes, carbon and beryllium on in-vessel surfaces in the various JET divertors

J.P. Coad, M. Rubel, N. Bekris, D. Brennan, D. Hole, Jari Likonen, Elizaveta Vainonen-Ahlgren, JET-EFDA Contributors

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Abstract

JET has operated with divertors of differing geometries since 1994. Impurities accumulated in the inner leg of all the divertors, and operation of the first (Mk I) divertor with beryllium tiles demonstrated that most are eroded from the main chamber walls and swept along the scrape-off layer to the inner divertor. Carbon deposited at the inner divertor is then locally transported to shadowed regions such as the inner louvres, where, for example, most of the tritium was trapped during the deuterium-tritium experiment (DTE1). Factors affecting these transport processes (e.g. temperature) are important for ITER, but are not well understood.
Original languageEnglish
Pages (from-to)551 - 556
Number of pages6
JournalFusion Science and Technology
Volume48
Issue number1
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

Fingerprint

Carbon Isotopes
Beryllium
hydrogen isotopes
Tritium
beryllium
Isotopes
vessels
Hydrogen
Carbon
Deuterium
carbon
Tile
tritium
Impurities
louvers
Geometry
tiles
Experiments
deuterium
Temperature

Cite this

Coad, J.P. ; Rubel, M. ; Bekris, N. ; Brennan, D. ; Hole, D. ; Likonen, Jari ; Vainonen-Ahlgren, Elizaveta ; JET-EFDA Contributors. / Distribution of hydrogen isotopes, carbon and beryllium on in-vessel surfaces in the various JET divertors. In: Fusion Science and Technology. 2005 ; Vol. 48, No. 1. pp. 551 - 556.
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abstract = "JET has operated with divertors of differing geometries since 1994. Impurities accumulated in the inner leg of all the divertors, and operation of the first (Mk I) divertor with beryllium tiles demonstrated that most are eroded from the main chamber walls and swept along the scrape-off layer to the inner divertor. Carbon deposited at the inner divertor is then locally transported to shadowed regions such as the inner louvres, where, for example, most of the tritium was trapped during the deuterium-tritium experiment (DTE1). Factors affecting these transport processes (e.g. temperature) are important for ITER, but are not well understood.",
author = "J.P. Coad and M. Rubel and N. Bekris and D. Brennan and D. Hole and Jari Likonen and Elizaveta Vainonen-Ahlgren and {JET-EFDA Contributors}",
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Coad, JP, Rubel, M, Bekris, N, Brennan, D, Hole, D, Likonen, J, Vainonen-Ahlgren, E & JET-EFDA Contributors 2005, 'Distribution of hydrogen isotopes, carbon and beryllium on in-vessel surfaces in the various JET divertors', Fusion Science and Technology, vol. 48, no. 1, pp. 551 - 556. https://doi.org/10.13182/FST05-A985

Distribution of hydrogen isotopes, carbon and beryllium on in-vessel surfaces in the various JET divertors. / Coad, J.P.; Rubel, M.; Bekris, N.; Brennan, D.; Hole, D.; Likonen, Jari; Vainonen-Ahlgren, Elizaveta; JET-EFDA Contributors.

In: Fusion Science and Technology, Vol. 48, No. 1, 2005, p. 551 - 556.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Distribution of hydrogen isotopes, carbon and beryllium on in-vessel surfaces in the various JET divertors

AU - Coad, J.P.

AU - Rubel, M.

AU - Bekris, N.

AU - Brennan, D.

AU - Hole, D.

AU - Likonen, Jari

AU - Vainonen-Ahlgren, Elizaveta

AU - JET-EFDA Contributors,

PY - 2005

Y1 - 2005

N2 - JET has operated with divertors of differing geometries since 1994. Impurities accumulated in the inner leg of all the divertors, and operation of the first (Mk I) divertor with beryllium tiles demonstrated that most are eroded from the main chamber walls and swept along the scrape-off layer to the inner divertor. Carbon deposited at the inner divertor is then locally transported to shadowed regions such as the inner louvres, where, for example, most of the tritium was trapped during the deuterium-tritium experiment (DTE1). Factors affecting these transport processes (e.g. temperature) are important for ITER, but are not well understood.

AB - JET has operated with divertors of differing geometries since 1994. Impurities accumulated in the inner leg of all the divertors, and operation of the first (Mk I) divertor with beryllium tiles demonstrated that most are eroded from the main chamber walls and swept along the scrape-off layer to the inner divertor. Carbon deposited at the inner divertor is then locally transported to shadowed regions such as the inner louvres, where, for example, most of the tritium was trapped during the deuterium-tritium experiment (DTE1). Factors affecting these transport processes (e.g. temperature) are important for ITER, but are not well understood.

U2 - 10.13182/FST05-A985

DO - 10.13182/FST05-A985

M3 - Article

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SP - 551

EP - 556

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JF - Fusion Science and Technology

SN - 1536-1055

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