A study of the atomic and molecular power loss terms in EDGE2D-EIRENE simulations of JET ITER-like wall L-mode discharges

K. D. Lawson; M. Groth; D. Harting; S. Menmuir; D. Reiter; S. Brezinsek; G. Corrigan; P. Drewelow; C. F. Maggi; A. G. Meigs; J. Simpson; M. F. Stamp; S. Wiesen; Contributors

doi:10.1016/j.nme.2017.04.015

A study of the atomic and molecular power loss terms in EDGE2D-EIRENE simulations of JET ITER-like wall L-mode discharges

K. D. Lawson^*, M. Groth, D. Harting, S. Menmuir, D. Reiter, S. Brezinsek, G. Corrigan, P. Drewelow, C. F. Maggi, A. G. Meigs, J. Simpson, M. F. Stamp, S. Wiesen, Contributors

^*Corresponding author for this work

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Abstract

A discrepancy in the divertor radiated powers between EDGE2D-EIRENE simulations and JET-ILW experiments employing a set of NBI-heated L-mode discharges with step-wise density variation is investigated. The analysis shows the importance of the contributions from the deuterium fuel to the divertor radiated power, making these discharges ideal for this study. Molecular radiation losses from D₂ molecules have been included for the first time and the present simulations allow the atomic and molecular electron power loss terms in EIRENE to be independently scaled in order to understand their importance in determining the simulated electron temperatures and distribution of radiated power.

Original language	English
Pages (from-to)	924-930
Number of pages	7
Journal	Nuclear Materials and Energy
Volume	12
DOIs	https://doi.org/10.1016/j.nme.2017.04.015
Publication status	Published - 1 Aug 2017
MoE publication type	A1 Journal article-refereed

Keywords

Divertor diagnostic
Divertor modelling
EDGE2D
ILW
JET

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10.1016/j.nme.2017.04.015

1-s2.0-S2352179116301788-mainFinal published version, 3.84 MBLicence: CC BY-NC-ND

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Lawson, K. D., Groth, M., Harting, D., Menmuir, S., Reiter, D., Brezinsek, S., Corrigan, G., Drewelow, P., Maggi, C. F., Meigs, A. G., Simpson, J., Stamp, M. F., Wiesen, S., & Contributors (2017). A study of the atomic and molecular power loss terms in EDGE2D-EIRENE simulations of JET ITER-like wall L-mode discharges. Nuclear Materials and Energy, 12, 924-930. https://doi.org/10.1016/j.nme.2017.04.015

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title = "A study of the atomic and molecular power loss terms in EDGE2D-EIRENE simulations of JET ITER-like wall L-mode discharges",

abstract = "A discrepancy in the divertor radiated powers between EDGE2D-EIRENE simulations and JET-ILW experiments employing a set of NBI-heated L-mode discharges with step-wise density variation is investigated. The analysis shows the importance of the contributions from the deuterium fuel to the divertor radiated power, making these discharges ideal for this study. Molecular radiation losses from D2 molecules have been included for the first time and the present simulations allow the atomic and molecular electron power loss terms in EIRENE to be independently scaled in order to understand their importance in determining the simulated electron temperatures and distribution of radiated power.",

keywords = "Divertor diagnostic, Divertor modelling, EDGE2D, ILW, JET",

author = "Lawson, {K. D.} and M. Groth and D. Harting and S. Menmuir and D. Reiter and S. Brezinsek and G. Corrigan and P. Drewelow and Maggi, {C. F.} and Meigs, {A. G.} and J. Simpson and Stamp, {M. F.} and S. Wiesen and Contributors",

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doi = "10.1016/j.nme.2017.04.015",

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Lawson, KD, Groth, M, Harting, D, Menmuir, S, Reiter, D, Brezinsek, S, Corrigan, G, Drewelow, P, Maggi, CF, Meigs, AG, Simpson, J, Stamp, MF, Wiesen, S & Contributors 2017, 'A study of the atomic and molecular power loss terms in EDGE2D-EIRENE simulations of JET ITER-like wall L-mode discharges', Nuclear Materials and Energy, vol. 12, pp. 924-930. https://doi.org/10.1016/j.nme.2017.04.015

TY - JOUR

T1 - A study of the atomic and molecular power loss terms in EDGE2D-EIRENE simulations of JET ITER-like wall L-mode discharges

AU - Lawson, K. D.

AU - Groth, M.

AU - Harting, D.

AU - Menmuir, S.

AU - Reiter, D.

AU - Brezinsek, S.

AU - Corrigan, G.

AU - Drewelow, P.

AU - Maggi, C. F.

AU - Meigs, A. G.

AU - Simpson, J.

AU - Stamp, M. F.

AU - Wiesen, S.

AU - Contributors,

PY - 2017/8/1

Y1 - 2017/8/1

N2 - A discrepancy in the divertor radiated powers between EDGE2D-EIRENE simulations and JET-ILW experiments employing a set of NBI-heated L-mode discharges with step-wise density variation is investigated. The analysis shows the importance of the contributions from the deuterium fuel to the divertor radiated power, making these discharges ideal for this study. Molecular radiation losses from D2 molecules have been included for the first time and the present simulations allow the atomic and molecular electron power loss terms in EIRENE to be independently scaled in order to understand their importance in determining the simulated electron temperatures and distribution of radiated power.

AB - A discrepancy in the divertor radiated powers between EDGE2D-EIRENE simulations and JET-ILW experiments employing a set of NBI-heated L-mode discharges with step-wise density variation is investigated. The analysis shows the importance of the contributions from the deuterium fuel to the divertor radiated power, making these discharges ideal for this study. Molecular radiation losses from D2 molecules have been included for the first time and the present simulations allow the atomic and molecular electron power loss terms in EIRENE to be independently scaled in order to understand their importance in determining the simulated electron temperatures and distribution of radiated power.

KW - Divertor diagnostic

KW - Divertor modelling

KW - EDGE2D

KW - ILW

KW - JET

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U2 - 10.1016/j.nme.2017.04.015

DO - 10.1016/j.nme.2017.04.015

M3 - Article

AN - SCOPUS:85019912676

SN - 2352-1791

VL - 12

SP - 924

EP - 930

JO - Nuclear Materials and Energy

JF - Nuclear Materials and Energy

ER -

A study of the atomic and molecular power loss terms in EDGE2D-EIRENE simulations of JET ITER-like wall L-mode discharges

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Keywords

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