Preliminary Monte Carlo simulation of beryllium migration during JET ITER-like wall divertor operation

M. I. Airila, A. Järvinen, M. Groth, P. Belo, S. Wiesen, S. Brezinsek, K. Lawson, D. Borodin, A. Kirschner, J. P. Coad, K. Heinola, J. Likonen, M. Rubel, A. Widdowson

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Abstract

Abstract Migration of beryllium into the divertor and deposition on tungsten in the final phase of the first ITER-like-wall campaign of JET are modelled with the 3D Monte Carlo impurity transport code ERO. The simulation covers the inner wall and the inner divertor. To generate the plasma background for Monte Carlo tracing of impurity particles, we use the EDGE2D/EIRENE code set. At the relevant regions of the wall, the estimated plasma conditions vary around Te≈5eV and ne≈2×1017m-3 (far-scrape-off layer; more than 10 cm away from the LCFS). We calculate impurity distributions in the plasma using the main chamber source as a free parameter in modelling and attempt to reproduce inter-ELM spectroscopic Be II line (527 nm) profiles at the divertor. The present model reproduces the level of emission close to the inner wall, but further work is needed to match also the measured emission peak values and ultimately link the modelled poloidal net deposition profiles of beryllium to post mortem data.

Original languageEnglish
Article number48423
Pages (from-to)800-804
Number of pages5
JournalJournal of Nuclear Materials
Volume463
DOIs
Publication statusPublished - 22 Jul 2015
MoE publication typeA1 Journal article-refereed

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Beryllium
beryllium
Impurities
Plasmas
impurities
Tungsten
simulation
tracing
profiles
tungsten
chambers
Monte Carlo simulation

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Airila, M. I. ; Järvinen, A. ; Groth, M. ; Belo, P. ; Wiesen, S. ; Brezinsek, S. ; Lawson, K. ; Borodin, D. ; Kirschner, A. ; Coad, J. P. ; Heinola, K. ; Likonen, J. ; Rubel, M. ; Widdowson, A. / Preliminary Monte Carlo simulation of beryllium migration during JET ITER-like wall divertor operation. In: Journal of Nuclear Materials. 2015 ; Vol. 463. pp. 800-804.
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title = "Preliminary Monte Carlo simulation of beryllium migration during JET ITER-like wall divertor operation",
abstract = "Abstract Migration of beryllium into the divertor and deposition on tungsten in the final phase of the first ITER-like-wall campaign of JET are modelled with the 3D Monte Carlo impurity transport code ERO. The simulation covers the inner wall and the inner divertor. To generate the plasma background for Monte Carlo tracing of impurity particles, we use the EDGE2D/EIRENE code set. At the relevant regions of the wall, the estimated plasma conditions vary around Te≈5eV and ne≈2×1017m-3 (far-scrape-off layer; more than 10 cm away from the LCFS). We calculate impurity distributions in the plasma using the main chamber source as a free parameter in modelling and attempt to reproduce inter-ELM spectroscopic Be II line (527 nm) profiles at the divertor. The present model reproduces the level of emission close to the inner wall, but further work is needed to match also the measured emission peak values and ultimately link the modelled poloidal net deposition profiles of beryllium to post mortem data.",
author = "Airila, {M. I.} and A. J{\"a}rvinen and M. Groth and P. Belo and S. Wiesen and S. Brezinsek and K. Lawson and D. Borodin and A. Kirschner and Coad, {J. P.} and K. Heinola and J. Likonen and M. Rubel and A. Widdowson",
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Airila, MI, Järvinen, A, Groth, M, Belo, P, Wiesen, S, Brezinsek, S, Lawson, K, Borodin, D, Kirschner, A, Coad, JP, Heinola, K, Likonen, J, Rubel, M & Widdowson, A 2015, 'Preliminary Monte Carlo simulation of beryllium migration during JET ITER-like wall divertor operation', Journal of Nuclear Materials, vol. 463, 48423, pp. 800-804. https://doi.org/10.1016/j.jnucmat.2014.09.010

Preliminary Monte Carlo simulation of beryllium migration during JET ITER-like wall divertor operation. / Airila, M. I.; Järvinen, A.; Groth, M.; Belo, P.; Wiesen, S.; Brezinsek, S.; Lawson, K.; Borodin, D.; Kirschner, A.; Coad, J. P.; Heinola, K.; Likonen, J.; Rubel, M.; Widdowson, A.

In: Journal of Nuclear Materials, Vol. 463, 48423, 22.07.2015, p. 800-804.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Preliminary Monte Carlo simulation of beryllium migration during JET ITER-like wall divertor operation

AU - Airila, M. I.

AU - Järvinen, A.

AU - Groth, M.

AU - Belo, P.

AU - Wiesen, S.

AU - Brezinsek, S.

AU - Lawson, K.

AU - Borodin, D.

AU - Kirschner, A.

AU - Coad, J. P.

AU - Heinola, K.

AU - Likonen, J.

AU - Rubel, M.

AU - Widdowson, A.

N1 - Project code: 104445

PY - 2015/7/22

Y1 - 2015/7/22

N2 - Abstract Migration of beryllium into the divertor and deposition on tungsten in the final phase of the first ITER-like-wall campaign of JET are modelled with the 3D Monte Carlo impurity transport code ERO. The simulation covers the inner wall and the inner divertor. To generate the plasma background for Monte Carlo tracing of impurity particles, we use the EDGE2D/EIRENE code set. At the relevant regions of the wall, the estimated plasma conditions vary around Te≈5eV and ne≈2×1017m-3 (far-scrape-off layer; more than 10 cm away from the LCFS). We calculate impurity distributions in the plasma using the main chamber source as a free parameter in modelling and attempt to reproduce inter-ELM spectroscopic Be II line (527 nm) profiles at the divertor. The present model reproduces the level of emission close to the inner wall, but further work is needed to match also the measured emission peak values and ultimately link the modelled poloidal net deposition profiles of beryllium to post mortem data.

AB - Abstract Migration of beryllium into the divertor and deposition on tungsten in the final phase of the first ITER-like-wall campaign of JET are modelled with the 3D Monte Carlo impurity transport code ERO. The simulation covers the inner wall and the inner divertor. To generate the plasma background for Monte Carlo tracing of impurity particles, we use the EDGE2D/EIRENE code set. At the relevant regions of the wall, the estimated plasma conditions vary around Te≈5eV and ne≈2×1017m-3 (far-scrape-off layer; more than 10 cm away from the LCFS). We calculate impurity distributions in the plasma using the main chamber source as a free parameter in modelling and attempt to reproduce inter-ELM spectroscopic Be II line (527 nm) profiles at the divertor. The present model reproduces the level of emission close to the inner wall, but further work is needed to match also the measured emission peak values and ultimately link the modelled poloidal net deposition profiles of beryllium to post mortem data.

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U2 - 10.1016/j.jnucmat.2014.09.010

DO - 10.1016/j.jnucmat.2014.09.010

M3 - Article

VL - 463

SP - 800

EP - 804

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

M1 - 48423

ER -