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ITPA Avilla January 2008 © Matej Mayer Surface modifications and blistering of tungsten exposed in ASDEX Upgrade M. Mayer, M. Balden, S. Lindig, J. Roth, R. Neu, ASDEX Upgrade team Max-Planck-Institut für Plasmaphysik, EURATOM Association, Garching, Germany
ITPA Avilla January 2008 © Matej Mayer Blister formation in W, laboratory studies W. Wang et al., JNM 299 (2001) 124 Surface modifications observed after bombardment of W by hydrogen in laboratory studies Blister formation Polycrystalline tungsten samples (Langmuir probes) exposed in AUG outer divertor in 2007 for 2620 s
ITPA Avilla January 2008 © Matej Mayer Langmuir probes from outer divertor Blister-like structures are observed
ITPA Avilla January 2008 © Matej Mayer Langmuir probes from outer divertor Do these structures contain voids? FIB using 30 keV Ga
ITPA Avilla January 2008 © Matej Mayer Langmuir probes from outer divertor Protective carbon coating for FIB
ITPA Avilla January 2008 © Matej Mayer Langmuir probes from outer divertor Blister-like structures filled with material, no voids These are no blisters
ITPA Avilla January 2008 © Matej Mayer Langmuir probes from outer divertor But:
ITPA Avilla January 2008 © Matej Mayer Langmuir probes from outer divertor A few blisters are observed in this area of the sample
ITPA Avilla January 2008 © Matej Mayer Summary Blister-like structures are observed, but they are solid and do not contain voids No blisters A few blisters are observed in some areas of the sample Surface modifications of W due to plasma exposure are small
SEWG Fuel Retention July 2008 © Matej Mayer Fuel retention in ASDEX Upgrade tungsten coatings M. Mayer, M. Balden, K. Krieger, S. Lindig, O. Ogorodnikova,
SEWG Gas Balance 2007 © Matej Mayer First results on deuterium depth profiling in W tiles M. Mayer 1, V.Kh. Alimov, V. Rohde 1, J. Roth 1, A. Herrmann.
Annual High-Z /Metal PFC SEWG Meeting, Ljubljana 1-2 October 2009 Studies of Plasma-Wall Interactions Post mortem characterization of exposed tungsten.
Kazuyoshi Sugiyama, SEWG meeting on Fuel retention, Garching, July Contribution of Boron on the D retention in the AUG full-W wall regime Max-Planck-Institut.
Report IPP Garching EU Task Force PWI Meeting, Cadarache Oct Max-Planck-Institut für Plasmaphysik compiled by Arne Kallenbach (IPP - EU-PWI.
M. Mayer SEWG Fuel Retention June Sample Analysis for TS, AUG and JET: Depth Profiling of Deuterium M. Mayer Max-Planck-Institut für Plasmaphysik,
Report IPP EU Task Force PWI Meeting, Arne Kallenbach, Ljubljana Nov Compiled by Arne Kallenbach Report from IPP Garching on work.
Trilateral Euregio Cluster A.Kreter, V.Philipps et al "Retention in W, Mo and graphite samples simultaneously exposed to SOL plasma in TEXTOR" Assoziation.
K. Krieger, SEWG Meeting on Material Migration and ITER Material Mix, JET, Max-Planck-Institut für Plasmaphysik Carbon local transport and redeposition.
WP10-PWI (02)/TEKES/BS(PS) Characterization of retention mechanisms in AUG Monitoring meeting of the EFDA PWI SEWG on Gas Balance and Fuel Retention,
Kazuyoshi Sugiyama, SEWG meeting, Culham, July Outline: 1.Introduction 2.Experimental procedure 3.Result 4.Summary Kazuyoshi Sugiyama First.
EU Plasma-Wall Interaction TF – Meeting Frascati SEWG Erosion & Transport S. Brezinsek Institut für Energieforschung –Plasmaphysik.
CIPS SEWG FR, JET 2008C. Hopf O 2 /He glow discharge cleaning: Experience at IPP Christian Hopf, Volker Rohde, Wolfgang Jacob Max-Planck-Institut für Plasmaphysik.
1 Th LoarerGas balance and fuel retention – EU TF on PWI – 13 November 2006 Th Loarer with contributions from C. Brosset 1, J. Bucalossi 1, P Coad 2, G.
EU Plasma-Wall Interaction TF – Meeting – SFA Ljublijana SEWG Chemical Erosion S. Brezinsek EU Plasma-Wall Interaction TF – Meeting
SEWG Meeting HIGH-Z, Ljubljana, October 2009 I. Tungsten distribution on limiters after WF 6 injection in TEXTOR II. SEM and EDX of Melted Tungsten Rods.
Kazuyoshi Sugiyama, SEWG meeting on Fuel retention, Garching, July Max-Planck-Institut für Plasmaphysik D retention and release behaviour of.
Vienna University of Technology (TU Wien) slides provided by F. Aumayr EURATOM – ÖAW: Contribution of the Austrian Fusion Association 2006 Innsbruck University.
R. Doerner, Oct. 18, 2005 EU PWI TF meeting, France Beryllium and carbon mixed-material studies R. P. Doerner, M. J. Baldwin, J. Hanna and D. Nishijima.
EU Plasma-Wall Interaction TF – Meeting FZJ SEWG Chemical Erosion S. Brezinsek TEC 1 Report of the Special Expert Working Group on Chemical.
Report on SEWG ITER like Material Mix V. Philipps on behalf of SEWG working group* Decided during EU -TF meeting Cadarache, 2005 Work programme defined.
1 Th LoarerGas balance and fuel retention – EU TF on PWI – 29 October 2007 Madrid Th Loarer with contributions from D Borodin, C Brosset, J Bucalossi,
A new look at the specification of ITER plasma wall interaction and tritium retention J. Roth a, J. Davis c, R. Doerner d, A. Haasz c, A. Kallenbach a,
Max-Planck-Institut für Plasmaphysik EURATOM Assoziation Interaction of nitrogen plasmas with tungsten Klaus Schmid, A. Manhard, Ch. Linsmeier, A. Wiltner,
Institute for Plasma Physics Rijnhuizen D retention in W and mixed systems in Pilot-PSI G. De Temmerman a, K. Bystrov a, L. Marot b, M. Mayer c, J.J. Zielinski.
Max-Planck-Institut für Plasmaphysik EURATOM Assoziation K. Schmid SWEG Deuterium retention in graphite samples exposed to beryllium-seeded.
C. Björkas, K. Vörtler and K. Nordlund Department of Physics, University of Helsinki Joint TFE-SEWG - Material Migration and Material Mixing meeting MD.
6 th EU PWI TF Meeting Madrid, Oct Tritium Inventory in ITER: Laboratory data and extrapolation from tokamaks Th Loarer, J Roth, S Brezinsek, A.
V.Philipps, SEWG mixed materials, EU PWI meeting Frascati, Oct 2008 EU Task Force Plasma Wall Interaction SEWG material mixing, report on 2008 activities.
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