Forschungszentrum Jülich in der Helmholtz-Gemeinschaft Institut für Energieforschung - Plasmaphysik EURATOM Assoziation – FZJ TEC A. Litnovsky et al., Meeting of the EU TF PWI SEWG on mixed materials, JET, Culham, July 9, 2007 Slide 1 of 13 Formation of mixed W/C and Mo/C layers in TEXTOR A. Litnovsky, V. Philipps, P. Wienhold, S. Richter, K. Krieger, G. Sergienko, A. Kirscher, A. Kreter, S. Droste, D. Borodin and TEXTOR Team
17
Embed
Institut für Energieforschung - Plasmaphysik EURATOM Assoziation – FZJ TEC A. Litnovsky et al., Meeting of the EU TF PWI SEWG on mixed materials, JET,
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Forschungszentrum Jülich
in der Helmholtz-Gemeinschaft
Institut für Energieforschung - Plasmaphysik
EURATOM Assoziation – FZJ
TEC A. Litnovsky et al., Meeting of the EU TF PWI
SEWG on mixed materials, JET, Culham, July 9, 2007
Slide 1 of 13
Formation of mixed W/C and Mo/C layers in TEXTOR
A. Litnovsky,
V. Philipps, P. Wienhold, S. Richter, K. Krieger,
G. Sergienko, A. Kirscher, A. Kreter, S. Droste, D. Borodin
and TEXTOR Team
Forschungszentrum Jülich
in der Helmholtz-Gemeinschaft
Institut für Energieforschung - Plasmaphysik
EURATOM Assoziation – FZJ
TEC A. Litnovsky et al., Meeting of the EU TF PWI
SEWG on mixed materials, JET, Culham, July 9, 2007
Slide 2 of 13
Mixed layers in TEXTOR
“Naturally” formed during the PWI experiments
Can be observed after exposure of high-Z limiters
in the SOL plasmas using Limiter Lock systems
Example: twin limiters, castellated limiters
Forschungszentrum Jülich
in der Helmholtz-Gemeinschaft
Institut für Energieforschung - Plasmaphysik
EURATOM Assoziation – FZJ
TEC A. Litnovsky et al., Meeting of the EU TF PWI
SEWG on mixed materials, JET, Culham, July 9, 2007
Slide 3 of 13
Exposure of twin W/C limiter in the SOL plasmas of TEXTOR*
W content in the deposit is
the largest neat tangency
point
W found deposited locally on
the carbon part of the limiter
*M. Rubel, V. Philipps, A. Huber and T. Tanabe, Phys. Scr. T81 (1999) 61
Deuterium retention only in
carbon deposition area
W deposited in gaps of C
rough surface despite of C
net erosion area
Forschungszentrum Jülich
in der Helmholtz-Gemeinschaft
Institut für Energieforschung - Plasmaphysik
EURATOM Assoziation – FZJ
TEC A. Litnovsky et al., Meeting of the EU TF PWI
SEWG on mixed materials, JET, Culham, July 9, 2007
Slide 4 of 13
Exposures of castellated limiters: general parameters