Modeling of impurity transport in the divertor of JET

JET-EFDA collaborators

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

Deposition/erosion measurements by means of a Quartz Micro Balance (QMB) located below the Load Bearing Septum Replacement Plate in the private flux region of the inner divertor of JET (with full carbon wall) revealed net deposition with the inner strike point located on the vertical tile and net erosion with the inner strike point on the horizontal tile [H.G. Esser et al., J. Nucl. Mater. 390–391, 148 (2009)]. ERO calculations show about 3.5 times larger flux entering the QMB aperture when the inner strike point is located on the vertical plate compared to the case when strike point is on the horizontal plate – thus indicating similar behavior. Using these fluxes from ERO as input, detailed modeling of erosion/deposition at the QMB itself considering the realistic geometry of the QMB housing has been performed with the 3D-GAPS code. The QMB measurements can be reproduced with combined ERO/3D-GAPS modeling if erosion due to deuterium atoms within the QMB housing is taken into account.
Original languageEnglish
Article number2402038
JournalPlasma and Fusion Research
Volume8
DOIs
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed

Fingerprint

quartz
impurities
erosion
tiles
septum
deuterium
apertures
carbon
geometry
atoms

Keywords

  • deposition
  • divertor
  • erosion
  • impurity transport
  • JET
  • plasma-wall interaction
  • Quartz Micro Balance

Cite this

@article{74109f5aadcf486e8a3737cecd10e696,
title = "Modeling of impurity transport in the divertor of JET",
abstract = "Deposition/erosion measurements by means of a Quartz Micro Balance (QMB) located below the Load Bearing Septum Replacement Plate in the private flux region of the inner divertor of JET (with full carbon wall) revealed net deposition with the inner strike point located on the vertical tile and net erosion with the inner strike point on the horizontal tile [H.G. Esser et al., J. Nucl. Mater. 390–391, 148 (2009)]. ERO calculations show about 3.5 times larger flux entering the QMB aperture when the inner strike point is located on the vertical plate compared to the case when strike point is on the horizontal plate – thus indicating similar behavior. Using these fluxes from ERO as input, detailed modeling of erosion/deposition at the QMB itself considering the realistic geometry of the QMB housing has been performed with the 3D-GAPS code. The QMB measurements can be reproduced with combined ERO/3D-GAPS modeling if erosion due to deuterium atoms within the QMB housing is taken into account.",
keywords = "deposition, divertor, erosion, impurity transport, JET, plasma-wall interaction, Quartz Micro Balance",
author = "A. Kirschner and D. Matveev and M. Groth and S. Brezinsek and V. Kotov and K. Krieger and D. Borodin and C. Bj{\"o}rkas and Markus Airila and H.G. Esser and G. Sergienko and U. Samm and {JET-EFDA collaborators}",
year = "2013",
doi = "10.1585/pfr.8.2402038",
language = "English",
volume = "8",
journal = "Plasma and Fusion Research",
issn = "1880-6821",

}

Modeling of impurity transport in the divertor of JET. / JET-EFDA collaborators.

In: Plasma and Fusion Research, Vol. 8, 2402038, 2013.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Modeling of impurity transport in the divertor of JET

AU - Kirschner, A.

AU - Matveev, D.

AU - Groth, M.

AU - Brezinsek, S.

AU - Kotov, V.

AU - Krieger, K.

AU - Borodin, D.

AU - Björkas, C.

AU - Airila, Markus

AU - Esser, H.G.

AU - Sergienko, G.

AU - Samm, U.

AU - JET-EFDA collaborators

PY - 2013

Y1 - 2013

N2 - Deposition/erosion measurements by means of a Quartz Micro Balance (QMB) located below the Load Bearing Septum Replacement Plate in the private flux region of the inner divertor of JET (with full carbon wall) revealed net deposition with the inner strike point located on the vertical tile and net erosion with the inner strike point on the horizontal tile [H.G. Esser et al., J. Nucl. Mater. 390–391, 148 (2009)]. ERO calculations show about 3.5 times larger flux entering the QMB aperture when the inner strike point is located on the vertical plate compared to the case when strike point is on the horizontal plate – thus indicating similar behavior. Using these fluxes from ERO as input, detailed modeling of erosion/deposition at the QMB itself considering the realistic geometry of the QMB housing has been performed with the 3D-GAPS code. The QMB measurements can be reproduced with combined ERO/3D-GAPS modeling if erosion due to deuterium atoms within the QMB housing is taken into account.

AB - Deposition/erosion measurements by means of a Quartz Micro Balance (QMB) located below the Load Bearing Septum Replacement Plate in the private flux region of the inner divertor of JET (with full carbon wall) revealed net deposition with the inner strike point located on the vertical tile and net erosion with the inner strike point on the horizontal tile [H.G. Esser et al., J. Nucl. Mater. 390–391, 148 (2009)]. ERO calculations show about 3.5 times larger flux entering the QMB aperture when the inner strike point is located on the vertical plate compared to the case when strike point is on the horizontal plate – thus indicating similar behavior. Using these fluxes from ERO as input, detailed modeling of erosion/deposition at the QMB itself considering the realistic geometry of the QMB housing has been performed with the 3D-GAPS code. The QMB measurements can be reproduced with combined ERO/3D-GAPS modeling if erosion due to deuterium atoms within the QMB housing is taken into account.

KW - deposition

KW - divertor

KW - erosion

KW - impurity transport

KW - JET

KW - plasma-wall interaction

KW - Quartz Micro Balance

U2 - 10.1585/pfr.8.2402038

DO - 10.1585/pfr.8.2402038

M3 - Article

VL - 8

JO - Plasma and Fusion Research

JF - Plasma and Fusion Research

SN - 1880-6821

M1 - 2402038

ER -