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conference paper

Nitrogen and neon retention in plasma-facing materials

Rubel, M.
•
Philipps, V.
•
Marot, L.
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2011
Journal Of Nuclear Materials
19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI)

Tungsten plate was exposed in the TEXTOR tokamak during nitrogen-assisted discharges. In order to determine material mixing on tungsten, the plate was examined ex situ with ion beam analysis techniques including time-of-flight heavy ion elastic recoil detection analysis and also with X-ray photoelectron spectroscopy. Nitrogen content in the range from 1.3 x 10(15) to 3.4 x 10(15) cm(-2) is measured in the outermost surface layer (20 nm) of the W plate. Photoelectron spectroscopy detects nitrogen both in the elemental and compound form, i.e. tungsten nitride (WN/W2N). Nitrogen is measured even in hot areas free from deuterium. Also neon co-implantation into the plasma-facing components has been identified following Ne-cooled pulses. (C) 2010 EURATOM. Published by Elsevier B.V. All rights reserved.

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Type
conference paper
DOI
10.1016/j.jnucmat.2010.08.035
Web of Science ID

WOS:000298128100049

Author(s)
Rubel, M.
Philipps, V.
Marot, L.
Petersson, P.
Pospieszczyk, A.
Schweer, B.
Date Issued

2011

Published in
Journal Of Nuclear Materials
Volume

415

Start page

S223

End page

S226

Subjects

Graphite

•

Limiter

•

Textor

•

Operation

•

Fluxes

Editorial or Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
CRPP  
SPC  
Event nameEvent placeEvent date
19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI)

San Diego, CA

May 24-28, 2010

Available on Infoscience
June 25, 2012
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/82168
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