Long-term fuel retention in JET ITER-like wall

K. Heinola; A. Widdowson; J. Likonen; E. Alves; A. Baron-Wiechec; N. Barradas; S. Brezinsek; N. Catarino; P. Coad; S. Koivuranta; S. Krat; G. F. Matthews; M. Mayer; P. Petersson; Jet Contributors

doi:10.1088/0031-8949/T167/1/014075

Long-term fuel retention in JET ITER-like wall

K. Heinola, A. Widdowson, J. Likonen, E. Alves, A. Baron-Wiechec, N. Barradas, S. Brezinsek, N. Catarino, P. Coad, S. Koivuranta, S. Krat, G. F. Matthews, M. Mayer, P. Petersson, Jet Contributors

Research output: Contribution to journal › Conference article › peer-review

60 Scopus citations

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 ITERlike 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.

Original language	English
Article number	014075
Journal	Physica Scripta
Volume	2016
Issue number	T167
DOIs	https://doi.org/10.1088/0031-8949/T167/1/014075
State	Published - 25 Jan 2016
Externally published	Yes
Event	15th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2015 - Aix-en-Provence, France Duration: 18 May 2015 → 22 May 2015

Keywords

TDS
deposition
fuel retention
fusion energy
ion beam analysis

Access to Document

10.1088/0031-8949/T167/1/014075

Cite this

@article{4a54802f2237469e81118e09e336990a,

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 ITERlike 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 = "TDS, deposition, fuel retention, fusion energy, ion beam analysis",

author = "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 Jet Contributors",

note = "Publisher Copyright: {\textcopyright} 2016 The Royal Swedish Academy of Sciences.; 15th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2015 ; Conference date: 18-05-2015 Through 22-05-2015",

year = "2016",

month = jan,

day = "25",

doi = "10.1088/0031-8949/T167/1/014075",

language = "英语",

volume = "2016",

journal = "Physica Scripta",

issn = "0281-1847",

publisher = "IOP Publishing Ltd.",

number = "T167",

}

TY - JOUR

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

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 - Contributors, Jet

PY - 2016/1/25

Y1 - 2016/1/25

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 ITERlike 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 ITERlike 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 - TDS

KW - deposition

KW - fuel retention

KW - fusion energy

KW - ion beam analysis

UR - http://www.scopus.com/inward/record.url?scp=84959902947&partnerID=8YFLogxK

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

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

M3 - 会议文章

AN - SCOPUS:84959902947

SN - 0281-1847

VL - 2016

JO - Physica Scripta

JF - Physica Scripta

IS - T167

M1 - 014075

T2 - 15th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2015

Y2 - 18 May 2015 through 22 May 2015

ER -

Long-term fuel retention in JET ITER-like wall

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this