Cracks avoidance with a modified solid tungsten divertor in ASDEX Upgrade

the ASDEX Upgrade Team

doi:10.1016/j.fusengdes.2018.04.066

Cracks avoidance with a modified solid tungsten divertor in ASDEX Upgrade

the ASDEX Upgrade Team

Associate Professorship of Plasma-Material-Wechselwirkung

Max Planck Institute for Plasma Physics

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

14 Scopus citations

Abstract

To clarify the suitability of solid tungsten as plasma facing material, a new divertor, DIV-III, entered in operation in ASDEX Upgrade (AUG) in 2014. Since the first experimental campaign, AUG divertor tiles faced crack issues. Trying to identify the reasoning, a new set of tiles was installed in 2016: many precautions were taken to reduce the stresses possibly causing the cracks. The AUG campaign 2017 started in March and the first results were collected during the short summer opening in 2017. This paper reports on the modification of the tile setup, based on Finite Element Modelling, and on the progress achieved in the first operation phase.

Original language	English
Pages (from-to)	1052-1057
Number of pages	6
Journal	Fusion Engineering and Design
Volume	136
DOIs	https://doi.org/10.1016/j.fusengdes.2018.04.066
State	Published - Nov 2018

Keywords

ASDEX upgrade
Tungsten crack
Tungsten divertor
Tungsten heavy alloy

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10.1016/j.fusengdes.2018.04.066

Cite this

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title = "Cracks avoidance with a modified solid tungsten divertor in ASDEX Upgrade",

abstract = "To clarify the suitability of solid tungsten as plasma facing material, a new divertor, DIV-III, entered in operation in ASDEX Upgrade (AUG) in 2014. Since the first experimental campaign, AUG divertor tiles faced crack issues. Trying to identify the reasoning, a new set of tiles was installed in 2016: many precautions were taken to reduce the stresses possibly causing the cracks. The AUG campaign 2017 started in March and the first results were collected during the short summer opening in 2017. This paper reports on the modification of the tile setup, based on Finite Element Modelling, and on the progress achieved in the first operation phase.",

keywords = "ASDEX upgrade, Tungsten crack, Tungsten divertor, Tungsten heavy alloy",

author = "\{the ASDEX Upgrade Team\} and I. Zammuto and M. Li and A. Herrmann and N. Jaksic and V. Rohde and M. Balden and S. Vorbrugg and G. Matern and H. Greuner and R. Neu and A. Kallenbach",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = nov,

doi = "10.1016/j.fusengdes.2018.04.066",

language = "English",

volume = "136",

pages = "1052--1057",

journal = "Fusion Engineering and Design",

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TY - JOUR

T1 - Cracks avoidance with a modified solid tungsten divertor in ASDEX Upgrade

AU - the ASDEX Upgrade Team

AU - Zammuto, I.

AU - Li, M.

AU - Herrmann, A.

AU - Jaksic, N.

AU - Rohde, V.

AU - Balden, M.

AU - Vorbrugg, S.

AU - Matern, G.

AU - Greuner, H.

AU - Neu, R.

AU - Kallenbach, A.

PY - 2018/11

Y1 - 2018/11

N2 - To clarify the suitability of solid tungsten as plasma facing material, a new divertor, DIV-III, entered in operation in ASDEX Upgrade (AUG) in 2014. Since the first experimental campaign, AUG divertor tiles faced crack issues. Trying to identify the reasoning, a new set of tiles was installed in 2016: many precautions were taken to reduce the stresses possibly causing the cracks. The AUG campaign 2017 started in March and the first results were collected during the short summer opening in 2017. This paper reports on the modification of the tile setup, based on Finite Element Modelling, and on the progress achieved in the first operation phase.

AB - To clarify the suitability of solid tungsten as plasma facing material, a new divertor, DIV-III, entered in operation in ASDEX Upgrade (AUG) in 2014. Since the first experimental campaign, AUG divertor tiles faced crack issues. Trying to identify the reasoning, a new set of tiles was installed in 2016: many precautions were taken to reduce the stresses possibly causing the cracks. The AUG campaign 2017 started in March and the first results were collected during the short summer opening in 2017. This paper reports on the modification of the tile setup, based on Finite Element Modelling, and on the progress achieved in the first operation phase.

KW - ASDEX upgrade

KW - Tungsten crack

KW - Tungsten divertor

KW - Tungsten heavy alloy

UR - https://www.scopus.com/pages/publications/85046690460

U2 - 10.1016/j.fusengdes.2018.04.066

DO - 10.1016/j.fusengdes.2018.04.066

M3 - Article

AN - SCOPUS:85046690460

SN - 0920-3796

VL - 136

SP - 1052

EP - 1057

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

ER -

Cracks avoidance with a modified solid tungsten divertor in ASDEX Upgrade

Abstract

Keywords

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