Improved ERO modelling for spectroscopy of physically and chemically assisted eroded beryllium from the JET-ILW

D. Borodin, S. Brezinsek, I. Borodkina, J. Romazanov, D. Matveev, A. Kirschner, A. Lasa, K. Nordlund, C. Björkas, M. Airila, J. Miettunen, M. Groth, M. Firdaouss, JET Contributors

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Abstract

Physical and chemical assisted physical sputtering were characterised by the Be I and Be II line and BeD band emission in the observation chord measuring the sightline integrated emission in front of the inner beryllium limiter at the torus midplane. The 3D local transport and plasma-surface interaction Monte-Carlo modelling (ERO code [18]) is a key for the interpretation of the observations in the vicinity of the shaped solid Be limiter. The plasma parameter variation (density scan) in limiter regime has provided a useful material for the simulation benchmark. The improved background plasma parameters input, the new analytical expression for particle tracking in the sheath region and implementation of the BeD release into ERO has helped to clarify some deviations between modelling and experiments encountered in the previous studies [4,5]. Reproducing the observations provides additional confidence in our ‘ERO-min’ fit for the physical sputtering yields for the plasma-wetted areas based on simulated data.

Original languageEnglish
Pages (from-to)604-609
Number of pages6
JournalNuclear Materials and Energy
Volume9
DOIs
Publication statusPublished - 1 Dec 2016
MoE publication typeA1 Journal article-refereed

Fingerprint

Beryllium
beryllium
Limiters
Spectroscopy
Plasmas
spectroscopy
Sputtering
sputtering
Beam plasma interactions
sheaths
surface reactions
confidence
deviation
simulation
Experiments

Keywords

  • Beryllium
  • Erosion
  • JET ITER-like wall
  • Spectroscopy

Cite this

Borodin, D., Brezinsek, S., Borodkina, I., Romazanov, J., Matveev, D., Kirschner, A., ... JET Contributors (2016). Improved ERO modelling for spectroscopy of physically and chemically assisted eroded beryllium from the JET-ILW. Nuclear Materials and Energy, 9, 604-609. https://doi.org/10.1016/j.nme.2016.08.013
Borodin, D. ; Brezinsek, S. ; Borodkina, I. ; Romazanov, J. ; Matveev, D. ; Kirschner, A. ; Lasa, A. ; Nordlund, K. ; Björkas, C. ; Airila, M. ; Miettunen, J. ; Groth, M. ; Firdaouss, M. ; JET Contributors. / Improved ERO modelling for spectroscopy of physically and chemically assisted eroded beryllium from the JET-ILW. In: Nuclear Materials and Energy. 2016 ; Vol. 9. pp. 604-609.
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abstract = "Physical and chemical assisted physical sputtering were characterised by the Be I and Be II line and BeD band emission in the observation chord measuring the sightline integrated emission in front of the inner beryllium limiter at the torus midplane. The 3D local transport and plasma-surface interaction Monte-Carlo modelling (ERO code [18]) is a key for the interpretation of the observations in the vicinity of the shaped solid Be limiter. The plasma parameter variation (density scan) in limiter regime has provided a useful material for the simulation benchmark. The improved background plasma parameters input, the new analytical expression for particle tracking in the sheath region and implementation of the BeD release into ERO has helped to clarify some deviations between modelling and experiments encountered in the previous studies [4,5]. Reproducing the observations provides additional confidence in our ‘ERO-min’ fit for the physical sputtering yields for the plasma-wetted areas based on simulated data.",
keywords = "Beryllium, Erosion, JET ITER-like wall, Spectroscopy",
author = "D. Borodin and S. Brezinsek and I. Borodkina and J. Romazanov and D. Matveev and A. Kirschner and A. Lasa and K. Nordlund and C. Bj{\"o}rkas and M. Airila and J. Miettunen and M. Groth and M. Firdaouss and {JET Contributors}",
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Borodin, D, Brezinsek, S, Borodkina, I, Romazanov, J, Matveev, D, Kirschner, A, Lasa, A, Nordlund, K, Björkas, C, Airila, M, Miettunen, J, Groth, M, Firdaouss, M & JET Contributors 2016, 'Improved ERO modelling for spectroscopy of physically and chemically assisted eroded beryllium from the JET-ILW', Nuclear Materials and Energy, vol. 9, pp. 604-609. https://doi.org/10.1016/j.nme.2016.08.013

Improved ERO modelling for spectroscopy of physically and chemically assisted eroded beryllium from the JET-ILW. / Borodin, D.; Brezinsek, S.; Borodkina, I.; Romazanov, J.; Matveev, D.; Kirschner, A.; Lasa, A.; Nordlund, K.; Björkas, C.; Airila, M.; Miettunen, J.; Groth, M.; Firdaouss, M.; JET Contributors.

In: Nuclear Materials and Energy, Vol. 9, 01.12.2016, p. 604-609.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Improved ERO modelling for spectroscopy of physically and chemically assisted eroded beryllium from the JET-ILW

AU - Borodin, D.

AU - Brezinsek, S.

AU - Borodkina, I.

AU - Romazanov, J.

AU - Matveev, D.

AU - Kirschner, A.

AU - Lasa, A.

AU - Nordlund, K.

AU - Björkas, C.

AU - Airila, M.

AU - Miettunen, J.

AU - Groth, M.

AU - Firdaouss, M.

AU - JET Contributors

PY - 2016/12/1

Y1 - 2016/12/1

N2 - Physical and chemical assisted physical sputtering were characterised by the Be I and Be II line and BeD band emission in the observation chord measuring the sightline integrated emission in front of the inner beryllium limiter at the torus midplane. The 3D local transport and plasma-surface interaction Monte-Carlo modelling (ERO code [18]) is a key for the interpretation of the observations in the vicinity of the shaped solid Be limiter. The plasma parameter variation (density scan) in limiter regime has provided a useful material for the simulation benchmark. The improved background plasma parameters input, the new analytical expression for particle tracking in the sheath region and implementation of the BeD release into ERO has helped to clarify some deviations between modelling and experiments encountered in the previous studies [4,5]. Reproducing the observations provides additional confidence in our ‘ERO-min’ fit for the physical sputtering yields for the plasma-wetted areas based on simulated data.

AB - Physical and chemical assisted physical sputtering were characterised by the Be I and Be II line and BeD band emission in the observation chord measuring the sightline integrated emission in front of the inner beryllium limiter at the torus midplane. The 3D local transport and plasma-surface interaction Monte-Carlo modelling (ERO code [18]) is a key for the interpretation of the observations in the vicinity of the shaped solid Be limiter. The plasma parameter variation (density scan) in limiter regime has provided a useful material for the simulation benchmark. The improved background plasma parameters input, the new analytical expression for particle tracking in the sheath region and implementation of the BeD release into ERO has helped to clarify some deviations between modelling and experiments encountered in the previous studies [4,5]. Reproducing the observations provides additional confidence in our ‘ERO-min’ fit for the physical sputtering yields for the plasma-wetted areas based on simulated data.

KW - Beryllium

KW - Erosion

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M3 - Article

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JO - Nuclear Materials and Energy

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SN - 2352-1791

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