Long-term fuel retention in JET ITER-like wall

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Long-term fuel retention in JET ITER-like wall. / JET contributors.

In: Physica Scripta, Vol. T167, 014075, 20.02.2016.

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JET contributors. / Long-term fuel retention in JET ITER-like wall. In: Physica Scripta. 2016 ; Vol. T167.

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@article{94ce2e34a1554659aeda4c462b5bd296,
title = "Long-term fuel retention in JET ITER-like wall",
abstract = "Post-mortem studies with ion beam analysis, thermal desorption, and secondary ion mass spectrometry have been applied for investigating the long-term fuel retention in the JET ITER-like wall components. The retention takes place via implantation and co-deposition, and the highest retention values were found to correlate with the thickness of the deposited impurity layers. From the total amount of retained D fuel over half was detected in the divertor region. The majority of the retained D is on the top surface of the inner divertor, whereas the least retention was measured in the main chamber on the mid-plane of the inner wall limiter. The recessed areas of the inner wall showed significant contribution to the main chamber total retention. Thermal desorption spectroscopy analysis revealed the energetic T from DD reactions being implanted in the divertor. The total T inventory was assessed to be >0.3 mg.",
keywords = "fusion energy, fuel retention, ion beam analysis, TDS, deposition",
author = "{JET contributors} and K. Heinola and A. Widdowson and J. Likonen and E. Alves and A. Baron-Wiechec and N. Barradas and S. Brezinsek and N. Catarino and P. Coad and S. Koivuranta and S. Krat and Matthews, {G. F.} and M. Mayer and P. Petersson and L. Aho-Mantila and M. Airila and O. Asunta and Chang, {C. S.} and S. Collins and J. Eriksson and Eriksson, {L. G.} and J. Evans and X. Gao and M. Groth and A. Hakola and Horton, {A. R.} and M. Hughes and J. Karhunen and T. Koskela and T. Kurki-Suonio and S. Lee and G. Liu and Y. Liu and J. Lopez and J. Lopez and T. Makkonen and Martin, {D. L.} and J. Miettunen and S. Moradi and D. Moulton and S. Ranjan and A. Salmi and Santala, {M. I. K.} and C. Silva and A. Sinha and P. Siren and Smith, {T. J.} and Y. Sun and P. Thomas and L. Yao",
year = "2016",
month = "2",
day = "20",
doi = "10.1088/0031-8949/T167/1/014075",
language = "English",
volume = "T167",
journal = "Physica Scripta",
issn = "0031-8949",

}

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TY - JOUR

T1 - Long-term fuel retention in JET ITER-like wall

AU - JET contributors

AU - Heinola, K.

AU - Widdowson, A.

AU - Likonen, J.

AU - Alves, E.

AU - Baron-Wiechec, A.

AU - Barradas, N.

AU - Brezinsek, S.

AU - Catarino, N.

AU - Coad, P.

AU - Koivuranta, S.

AU - Krat, S.

AU - Matthews, G. F.

AU - Mayer, M.

AU - Petersson, P.

AU - Aho-Mantila, L.

AU - Airila, M.

AU - Asunta, O.

AU - Chang, C. S.

AU - Collins, S.

AU - Eriksson, J.

AU - Eriksson, L. G.

AU - Evans, J.

AU - Gao, X.

AU - Groth, M.

AU - Hakola, A.

AU - Horton, A. R.

AU - Hughes, M.

AU - Karhunen, J.

AU - Koskela, T.

AU - Kurki-Suonio, T.

AU - Lee, S.

AU - Liu, G.

AU - Liu, Y.

AU - Lopez, J.

AU - Lopez, J.

AU - Makkonen, T.

AU - Martin, D. L.

AU - Miettunen, J.

AU - Moradi, S.

AU - Moulton, D.

AU - Ranjan, S.

AU - Salmi, A.

AU - Santala, M. I. K.

AU - Silva, C.

AU - Sinha, A.

AU - Siren, P.

AU - Smith, T. J.

AU - Sun, Y.

AU - Thomas, P.

AU - Yao, L.

PY - 2016/2/20

Y1 - 2016/2/20

N2 - Post-mortem studies with ion beam analysis, thermal desorption, and secondary ion mass spectrometry have been applied for investigating the long-term fuel retention in the JET ITER-like wall components. The retention takes place via implantation and co-deposition, and the highest retention values were found to correlate with the thickness of the deposited impurity layers. From the total amount of retained D fuel over half was detected in the divertor region. The majority of the retained D is on the top surface of the inner divertor, whereas the least retention was measured in the main chamber on the mid-plane of the inner wall limiter. The recessed areas of the inner wall showed significant contribution to the main chamber total retention. Thermal desorption spectroscopy analysis revealed the energetic T from DD reactions being implanted in the divertor. The total T inventory was assessed to be >0.3 mg.

AB - Post-mortem studies with ion beam analysis, thermal desorption, and secondary ion mass spectrometry have been applied for investigating the long-term fuel retention in the JET ITER-like wall components. The retention takes place via implantation and co-deposition, and the highest retention values were found to correlate with the thickness of the deposited impurity layers. From the total amount of retained D fuel over half was detected in the divertor region. The majority of the retained D is on the top surface of the inner divertor, whereas the least retention was measured in the main chamber on the mid-plane of the inner wall limiter. The recessed areas of the inner wall showed significant contribution to the main chamber total retention. Thermal desorption spectroscopy analysis revealed the energetic T from DD reactions being implanted in the divertor. The total T inventory was assessed to be >0.3 mg.

KW - fusion energy

KW - fuel retention

KW - ion beam analysis

KW - TDS

KW - deposition

U2 - 10.1088/0031-8949/T167/1/014075

DO - 10.1088/0031-8949/T167/1/014075

M3 - Article

VL - T167

JO - Physica Scripta

JF - Physica Scripta

SN - 0031-8949

M1 - 014075

ER -

ID: 38666355