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; Markus Airila; J. Miettunen; M. Groth; M. Firdaouss; JET Contributors

doi:10.1016/j.nme.2016.08.013

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, Markus Airila, J. Miettunen, M. Groth, M. Firdaouss, JET Contributors

^*Corresponding author for this work

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

20 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 language	English
Pages (from-to)	604-609
Journal	Nuclear Materials and Energy
Volume	9
DOIs	https://doi.org/10.1016/j.nme.2016.08.013
Publication status	Published - 1 Dec 2016
MoE publication type	A1 Journal article-refereed

Keywords

Beryllium
Erosion
JET ITER-like wall
Spectroscopy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.nme.2016.08.013

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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, 9, 604-609. https://doi.org/10.1016/j.nme.2016.08.013

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

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 {\textquoteleft}ERO-min{\textquoteright} 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 Markus Airila and J. Miettunen and M. Groth and M. Firdaouss and {JET Contributors}",

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doi = "10.1016/j.nme.2016.08.013",

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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

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, Markus

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

KW - JET ITER-like wall

KW - Spectroscopy

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DO - 10.1016/j.nme.2016.08.013

M3 - Article

AN - SCOPUS:85006043011

SN - 2352-1791

VL - 9

SP - 604

EP - 609

JO - Nuclear Materials and Energy

JF - Nuclear Materials and Energy

ER -

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

Abstract

Keywords

UN SDGs

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