Deposition of 13C tracer in the JET MkII-HD divertor

J. Likonen; A. Hakola; J. Strachan; J. P. Coad; A. Widdowson; S. Koivuranta; D. E. Hole; K. Mizohata; M. Rubel; S. Jachmich; M. Stamp

doi:10.1016/j.jnucmat.2010.10.076

Deposition of ¹³C tracer in the JET MkII-HD divertor

J. Likonen, A. Hakola, J. Strachan, J. P. Coad, A. Widdowson, S. Koivuranta, D. E. Hole, K. Mizohata, M. Rubel, S. Jachmich, M. Stamp

Laboratory for Plasma Physics

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

Abstract

Migration of ¹³C has been investigated at JET by puffing ¹³CH₄ into the outer midplane at the end of the 2007 campaign. The ¹³C deposition profile was measured with secondary ion mass spectrometry (SIMS) and Rutherford backscattering (RBS) techniques. ¹³C was mainly found on Tile 1 and near the outer strike point (OSP) on Tile 7. The ¹³C transport was modelled with the EDGE2D/NIMBUS code. Previous work indicates that migration pathways are: (1) through the main chamber scrape-off layer (SOL), (2) migration through the private flux region (PFR) aided by E × B drifts and (3) neutral migration originating near the strike points. The main contribution of this paper is to further describe the neutral migration.

Original language	English
Pages (from-to)	S250-S253
Journal	Journal of Nuclear Materials
Volume	415
Issue number	1 SUPPL
DOIs	https://doi.org/10.1016/j.jnucmat.2010.10.076
Publication status	Published - 1 Aug 2011

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10.1016/j.jnucmat.2010.10.076

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title = "Deposition of 13C tracer in the JET MkII-HD divertor",

abstract = "Migration of 13C has been investigated at JET by puffing 13CH4 into the outer midplane at the end of the 2007 campaign. The 13C deposition profile was measured with secondary ion mass spectrometry (SIMS) and Rutherford backscattering (RBS) techniques. 13C was mainly found on Tile 1 and near the outer strike point (OSP) on Tile 7. The 13C transport was modelled with the EDGE2D/NIMBUS code. Previous work indicates that migration pathways are: (1) through the main chamber scrape-off layer (SOL), (2) migration through the private flux region (PFR) aided by E × B drifts and (3) neutral migration originating near the strike points. The main contribution of this paper is to further describe the neutral migration.",

author = "J. Likonen and A. Hakola and J. Strachan and Coad, {J. P.} and A. Widdowson and S. Koivuranta and Hole, {D. E.} and K. Mizohata and M. Rubel and S. Jachmich and M. Stamp",

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doi = "10.1016/j.jnucmat.2010.10.076",

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T1 - Deposition of 13C tracer in the JET MkII-HD divertor

AU - Likonen, J.

AU - Hakola, A.

AU - Strachan, J.

AU - Coad, J. P.

AU - Widdowson, A.

AU - Koivuranta, S.

AU - Hole, D. E.

AU - Mizohata, K.

AU - Rubel, M.

AU - Jachmich, S.

AU - Stamp, M.

PY - 2011/8/1

Y1 - 2011/8/1

N2 - Migration of 13C has been investigated at JET by puffing 13CH4 into the outer midplane at the end of the 2007 campaign. The 13C deposition profile was measured with secondary ion mass spectrometry (SIMS) and Rutherford backscattering (RBS) techniques. 13C was mainly found on Tile 1 and near the outer strike point (OSP) on Tile 7. The 13C transport was modelled with the EDGE2D/NIMBUS code. Previous work indicates that migration pathways are: (1) through the main chamber scrape-off layer (SOL), (2) migration through the private flux region (PFR) aided by E × B drifts and (3) neutral migration originating near the strike points. The main contribution of this paper is to further describe the neutral migration.

AB - Migration of 13C has been investigated at JET by puffing 13CH4 into the outer midplane at the end of the 2007 campaign. The 13C deposition profile was measured with secondary ion mass spectrometry (SIMS) and Rutherford backscattering (RBS) techniques. 13C was mainly found on Tile 1 and near the outer strike point (OSP) on Tile 7. The 13C transport was modelled with the EDGE2D/NIMBUS code. Previous work indicates that migration pathways are: (1) through the main chamber scrape-off layer (SOL), (2) migration through the private flux region (PFR) aided by E × B drifts and (3) neutral migration originating near the strike points. The main contribution of this paper is to further describe the neutral migration.

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SP - S250-S253

JO - Journal of Nuclear Materials

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IS - 1 SUPPL

ER -

Deposition of ¹³C tracer in the JET MkII-HD divertor

Abstract

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