Abstract
| Original language | English |
|---|---|
| Article number | 014051 |
| Number of pages | 9 |
| Journal | Physica Scripta |
| Volume | 2016 |
| Issue number | T167 |
| DOIs | |
| Publication status | Published - 2016 |
| MoE publication type | A1 Journal article-refereed |
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Erosion and deposition in the JET divertor during the first ILW campaign. / Mayer, M. (Corresponding Author); Krat, S.; Van Renterghem, W.; Baron-Wiechec, A.; Brezinsek, S.; Bykov, I.; Coad, P.; Gasparyan, Yu; Heinola, K.; Likonen, J.; Pisarev, A.; Ruset, C.; de Saint-Aubin, G.; Widdowson, A.; Contributors, JET.
In: Physica Scripta, Vol. 2016, No. T167, 014051, 2016.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Erosion and deposition in the JET divertor during the first ILW campaign
AU - Mayer, M.
AU - Krat, S.
AU - Van Renterghem, W.
AU - Baron-Wiechec, A.
AU - Brezinsek, S.
AU - Bykov, I.
AU - Coad, P.
AU - Gasparyan, Yu
AU - Heinola, K.
AU - Likonen, J.
AU - Pisarev, A.
AU - Ruset, C.
AU - de Saint-Aubin, G.
AU - Widdowson, A.
AU - Contributors, JET
N1 - Project code: 104445
PY - 2016
Y1 - 2016
N2 - Erosion and deposition were studied in the JET divertor during the first JET ITER-like wall campaign 2011 to 2012 using marker tiles. An almost complete poloidal section consisting of tiles 0, 1, 3, 4, 6, 7, 8 was studied. The data from divertor tile surfaces were completed by the analysis of samples from remote divertor areas and from the inner wall cladding. The total mass of material deposited in the divertor decreased by a factor of 4-9 compared to the deposition of carbon during all-carbon JET operation before 2010. Deposits in 2011 to 2012 consist mainly of beryllium with 5-20 at.% of carbon and oxygen, respectively, and small amounts of Ni, Cr, Fe and W. This decrease of material deposition in the divertor is accompanied by a decrease of total deuterium retention inside the JET vessel by a factor of 10 to 20. The detailed erosion/deposition pattern in the divertor with the ITER-like wall configuration shows rigorous changes compared to the pattern with the all-carbon JET configuration.
AB - Erosion and deposition were studied in the JET divertor during the first JET ITER-like wall campaign 2011 to 2012 using marker tiles. An almost complete poloidal section consisting of tiles 0, 1, 3, 4, 6, 7, 8 was studied. The data from divertor tile surfaces were completed by the analysis of samples from remote divertor areas and from the inner wall cladding. The total mass of material deposited in the divertor decreased by a factor of 4-9 compared to the deposition of carbon during all-carbon JET operation before 2010. Deposits in 2011 to 2012 consist mainly of beryllium with 5-20 at.% of carbon and oxygen, respectively, and small amounts of Ni, Cr, Fe and W. This decrease of material deposition in the divertor is accompanied by a decrease of total deuterium retention inside the JET vessel by a factor of 10 to 20. The detailed erosion/deposition pattern in the divertor with the ITER-like wall configuration shows rigorous changes compared to the pattern with the all-carbon JET configuration.
U2 - 10.1088/0031-8949/T167/1/014051
DO - 10.1088/0031-8949/T167/1/014051
M3 - Article
VL - 2016
JO - Physica Scripta
JF - Physica Scripta
SN - 0031-8949
IS - T167
M1 - 014051
ER -