Modelling the erosion/deposition pattern of the Tore Supra Toroidal Pumped Limiter

S. Panayotis; B. Pégourié; D. Borodin; A. Kirschner; J. Gunn; Y. Marandet; N. Mellet

doi:10.1016/j.jnucmat.2014.09.050

Modelling the erosion/deposition pattern of the Tore Supra Toroidal Pumped Limiter

S. Panayotis, B. Pégourié, D. Borodin, A. Kirschner, J. Gunn, Y. Marandet, N. Mellet

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

Abstract

Abstract This paper aims at understanding the main processes responsible for the erosion/deposition pattern observed on the surface of the Toroidal Pumped Limiter of Tore Supra, using the 3D local impurity transport code ERO. The influence of the plasma impurity content, CX-flux and surface temperature on the global carbon balance and erosion/deposition pattern is discussed. Main results are (1) that considering medium-range transport of C ions is mandatory for reproducing the main characteristics of the global C balance and erosion/deposition pattern, (2) that impurities and CX-atoms increase the erosion by a factor ≤2 (without changing the net/gross erosion ratio), and (3) that chemical erosion is governed by the re-erosion of deposits, which depends strongly on the surface temperature.

Original language	English
Article number	48463
Pages (from-to)	827-831
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	463
DOIs	https://doi.org/10.1016/j.jnucmat.2014.09.050
State	Published - 22 Jul 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2014 Elsevier B.V.

Funding

This work, supported by the European Communities under the contract of Association between EURATOM and CEA, was carried out within the framework of the European Fusion development Agreement. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

Funders	Funder number
H2020 Euratom
Commissariat à l'Énergie Atomique et aux Énergies Alternatives

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10.1016/j.jnucmat.2014.09.050

Cite this

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title = "Modelling the erosion/deposition pattern of the Tore Supra Toroidal Pumped Limiter",

abstract = "Abstract This paper aims at understanding the main processes responsible for the erosion/deposition pattern observed on the surface of the Toroidal Pumped Limiter of Tore Supra, using the 3D local impurity transport code ERO. The influence of the plasma impurity content, CX-flux and surface temperature on the global carbon balance and erosion/deposition pattern is discussed. Main results are (1) that considering medium-range transport of C ions is mandatory for reproducing the main characteristics of the global C balance and erosion/deposition pattern, (2) that impurities and CX-atoms increase the erosion by a factor ≤2 (without changing the net/gross erosion ratio), and (3) that chemical erosion is governed by the re-erosion of deposits, which depends strongly on the surface temperature.",

author = "S. Panayotis and B. P{\'e}gouri{\'e} and D. Borodin and A. Kirschner and J. Gunn and Y. Marandet and N. Mellet",

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AU - Panayotis, S.

AU - Pégourié, B.

AU - Borodin, D.

AU - Kirschner, A.

AU - Gunn, J.

AU - Marandet, Y.

AU - Mellet, N.

PY - 2015/7/22

Y1 - 2015/7/22

N2 - Abstract This paper aims at understanding the main processes responsible for the erosion/deposition pattern observed on the surface of the Toroidal Pumped Limiter of Tore Supra, using the 3D local impurity transport code ERO. The influence of the plasma impurity content, CX-flux and surface temperature on the global carbon balance and erosion/deposition pattern is discussed. Main results are (1) that considering medium-range transport of C ions is mandatory for reproducing the main characteristics of the global C balance and erosion/deposition pattern, (2) that impurities and CX-atoms increase the erosion by a factor ≤2 (without changing the net/gross erosion ratio), and (3) that chemical erosion is governed by the re-erosion of deposits, which depends strongly on the surface temperature.

AB - Abstract This paper aims at understanding the main processes responsible for the erosion/deposition pattern observed on the surface of the Toroidal Pumped Limiter of Tore Supra, using the 3D local impurity transport code ERO. The influence of the plasma impurity content, CX-flux and surface temperature on the global carbon balance and erosion/deposition pattern is discussed. Main results are (1) that considering medium-range transport of C ions is mandatory for reproducing the main characteristics of the global C balance and erosion/deposition pattern, (2) that impurities and CX-atoms increase the erosion by a factor ≤2 (without changing the net/gross erosion ratio), and (3) that chemical erosion is governed by the re-erosion of deposits, which depends strongly on the surface temperature.

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Modelling the erosion/deposition pattern of the Tore Supra Toroidal Pumped Limiter

Abstract

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