1. 1E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom 2010 WP for the PWI TF : Tasks agreements and priority support The EU PWI TF under new EFDA : Timeline Meetings / Reporting (2008) WP2010 : selection criteria Work Programme 2010 : Main orientations Tasks agreements for 2010 TF and SEWG leadership Summary

2. 2E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom The PWI TF under new EFDA

3. 3E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom Call for Participation for n+1 WP (summer) Task agreements drafted for n+1 WP (nov) Implemented by end of the year SEWGs meetings Definition of the Work Program for the next year(s) Annual PWI TF meeting, reporting on current WP Timeline for the PWI TF Next call : summer 2010 for WP2011 Presentation of the n+1 annual WP Reporting on n-1 WP to EFDA SC (main lines – ceiling) (feb-march) EFDA SC (Feb-March) Answer to call (early sept) Call assessment by PWI TF (end sept) Presentation to EFDA SC for approval (oct) EFDA SC (october)

4. 4E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom Meetings / Reporting Meetings : SEWG meetings : science oriented, large part for discussion, plans for collaborative work, joint SEWG meetings (fuel retention / fuel removal/ dust) Annual meeting : SEWG reports : science oriented + table indicating degree of completion EU/ International / ITER context (TG materials) « free » session for topics not covered by SEWG feedback from associations on organisation etc … discussion of next year programme Reporting : Baseline support : slides shown at annual meeting + template (degree of completion, highlights, publications) Priority support : reports to be sent by associations to SEWG leaders, justification of ppy + hardware, scientific highlights, publications …

5. 5E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom Reporting 2008 Report to STAC 2009 on activities 2008: The EU TF PWI has remained a leading contributor to the field of plasma wall interaction worldwide, focussing its work on priority PWI issues for ITER through the activities of its special expert working groups (SEWGs). A significant advantage in the EU PWI programme is the broad range of experiments, which allow the study of separate aspects of the problem and thus to address the most important ITER issues (choice of plasma facing components, fuel retention, ELMS and disruptions). 2008 WP successful (5 % delayed), TA2009 launched Scientific success demonstrated (>100 publications for 2008, strong participation in PSI and IAEA 08)

6. 6E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom Call 2009 for WP2010 : selection criteria Baseline support : ceiling (~ 90 ppy) but no strong reduction so far Priority support : ceiling for ppy (~ 21 ppy) and hardware (~ 400 kEuros) STRONG SELECTION (factor 2) Rejected : not in the scope of the PWI TF WP, JET related work Reduced ( shifted to BS) : non collaborative work (unless priority like T/Be related work) + added value of the collaboration no associated effort in BS ceiling limit Justification / Recommendation under Ecom Ecom : new challenging tool ! Quality of task description ?

7. 7E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom 2010 WP for the PWI TF

8. 8E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom Main orientations for 2010-2011 Strengthening of modelling for extrapolation to ITER and DEMO – Interpretative modelling for benchmarking tools used for ITER simulations (SOLPS, ERO, DIVIMP …) – in close connection with ITM-TF (code development) 2 years WP : 1 call for 2010-2011 TA2010 and TA2011 Integrated plasma operation : impact of impurity seeding – erosion, mixed material, fuel retention … Including recent ITER requests –W R&D –IC wall conditionning – divertor re-attachment heat loads – disruptions/runaways Bilateral collaborations : – mixed materials : PISCES (US) EFDA PWI TF – material damage : plasma guns (RF) F4E, but modelling + dust = PWI TF

9. 9E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom High Z Disruptions EFDA emerging techno + F4E Total TA2009 : 22.6 ppy (+ 4 ppy for new associations) Total TA2010 : 24.5 ppy. No cut for PWI. ppy 7 TAs for 2010

10. 10E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom TA 1 : Fuel retention (FOM, FZJ, IPP, CEA, MedC, MHST, TEKES, VR) Retention in C : TS (DITS project, CEA, VR, IPP, MHST), Textor (FZJ, MHST, VR), porosity of CFC (MedC) Retention in W : AUG (post mortem + particle balance, boron, IPP, Tekes), lab studies : dpa (IPP, FOM), transients (FOM) Retention in mixed materials : W/C (FOM, FZJ, PISCES), Be/W/C (IPP, MedC) Gaps : CEA, FZJ, post mortem + modelling Predictions for ITER T retention : ERO (FZJ), multi machine scaling (IPP) PS : 3.1 ppy, hardware : 30 kEuros

11. 11E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom TA 2 : Fuel removal (ERM, CEA, FZJ, IPP, IST, VR, SCK CEN, CIEMAT, MHST, IPPLM, VR, MedC, ENEA) ICWC TS, Textor, AUG (CEA, FZJ, IPP, IST, ERM ) Chemical cleaning : GDC, oxygen, nitrogen, ammonia : SCK CEN, CIEMAT, FZJ, VR, ENEA, MHST Photonic cleaning : Laser (break up products, in situ demo) : FZJ, IPPLM, VR, CEA, CIEMAT Removal in gaps : FZJ, IPP, MHST (chemical), MedC (torch), CEA (laser), modelling (IPP) Layers : MedC PS : 3.5 ppy, hardware : 20 kEuros

12. 12E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom TA 3 : Dust (IPP, VR, CEA, IPPLM, FZJ, FOM, ENEA) Multi machine dust collection and analysis : AUG, TS, Textor (FIB in IPP, VR)+ lab experiments (laser IPPLM) Dust during operation : Fast cameras AUG (IPP, CEA), Textor (FZJ, VR aerogel), FTU (ENEA), electrostatic dust detectors : CEA Dust generation and transport : FOM, CEA (modelling), FZJ (dust injection), UKAEA PS : 1,65 ppy, hardware : 32 kEuros

13. 13E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom TA 4 : material migration (CEA, CIEMAT, FZJ, Tekes, VR, FOM, IPP, ÖAW, DCU, IPPLM, IPP.CR, CY, MedC) Global material migration (first wall + divertor) : CEA (new Langmuir probes, modelling), FZJ, AUG (IPP, Tekes, IPPLM), FOM Tracer experiments ( 13 C + W … ) : Textor (VR), AUG (modelling Tekes), CIEMAT Erosion / redeposition / re-erosion : FOM/MedC, FZJ, ÖAW, IPP.CR (impurity seeding), MHST, CY (chemical erosion modelling) Modelling : 3D start up (EMC3-Eirene, ERO) : IPP, FZJ, VTT (Textor, AUG) ERO benchmark (FZJ, VTT, FOM) : PISCES, Magnum, AUG Grid extension + benchmark (DIVIMP, B2E …) : IPP Impurity transport on MAST (DCU) Eirene ion : ÖAW, CEA, FZJ PS : 3.8 ppy, hardware : 90 kEuros

14. 14E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom TA 5 : high-Z + liquid limiters (SCK CEN, ENEA, FOM, FZJ, IPP, IPPLM, VR, FZK, MedC, IST, AEUL, CEA) Integrated scenario (impurity seeding, ramp up/down, RF …) : IPP, ENEA, FOM, W transport modelling (FZJ, IPP, CEA) W diags : IPP, CEA (IR), FZJ (spectroscopy), MedC (W coatings) W exposure to ITER like conditions (retention, damage, neutron) : SCK CEN (Vision), FOM (transients + impurity seeding), FZJ/VR, IPP/IPPLM (surface morphology), FZK (damage modelling) W coatings : ENEA, IPP PS : 5,65 ppy, hardware : 143 kEuros Operation with liquid metals PFCs (retention, power loads, plasma performance …) : ENEA, IST, AEUL, FZK (modelling)

15. 15E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom TA 6 : mixed materials (SCK CEN, FZJ, IPP, MedC, VR, FOM, Tekes, ÖAW, ENEA, CRPP) Mixed layers analysis (composition, fuel retention …) : ÖAW, ENEA (properties deposited layers), FZJ / VR, CEA, CRPP (W/C, gaps), IPP (tokamak deposits) FOM / FZJ (D + He), IPP (ternary with Be, nitrogen), TEKES MedC (Be/C, Be/W, Be/C/W layers) Modelling : FZJ (ERO for PISCES), TEKES (MD + ERO upgrade on material mixing models), CEA (MD on Be/W, SOLPS), IPP, ÖAW PS : 2.25 ppy, hardware : 45 kEuros

16. 16E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom TA 7 : Transients (CEA, FZJ, IPP, FOM, ÖAW, UKAEA, IST, FZK) Power loads during disruptions (including runaways) : CEA, IPP, FOM, UKAEA, IST Massive gas injection : CEA, FZJ, UKAEA, IST, IPP (modelling), FZK (runaway modelling) PS : 2.8 ppy, hardware : 70 kEuros Heat flux during ELMs : UKAEA, IPP, FZJ (fast ions), ÖAW (turbulent transport) ELM mitigation : FZJ (3D modelling for RMP), IPP Heat flux inter ELMs : CEA, IPP, ÖAW (turbulent transport)

17. 17E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom PWI TF leadership TF leadership (2009-2011) : leader E. Tsitrone (CEA), deputy R. Neu (IPP) SEWGs (2010) : Material migration : S. Brezinsek (FZJ) High Z : G. Maddaluno (ENEA) Mixed materials : K. Krieger (IPP) Fuel retention : vacant deadline for application : November 13 Fuel removal : P. Coad (UKAEA) Dust : M. Rubel (VR) Transients : M. Lehnen (FZJ) TF leadership (leader + deputy) (0.5 ppy) : EFDA SC on proposal by EFDA leader, 3 years term 2009-2011 SEWG leadership (0.25 ppy) : EFDA on proposal from PWI TF leadership, term = duration of the call (1 year)

18. 18E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom Summary WP2010 : 7 TAs to be implemented soon Successful WP2008 no cut for 2010 (~ 21 ppy and ~ 400 kEuros) Strong selection on PS (ECOM quality of task description ) Interpretative modelling, impurity seeding Effort needed on disruptions/runaways PSI 2010 : acknowledgement EU PWI TF (see PWI webpage) Preparation for 2011 WP : starts … now ! list of priorities SEWGs (new ones ? merging ?) TAs ? estimate of ppy/hardware Your feedback is important : call / TAs / reporting / ECOM channel through contact persons

19. 19E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom Annex

20. 20E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom 7 TAs for 2010 Fuel retention : TA-1: Fuel retention as a function of wall materials foreseen for ITER Fuel removal : TA-2: Fuel removal compatible with retention in different and mixed first wall materials Dust : TA-3: Dust generation and characterization in different devices Material migration : TA-4: Erosion, transport and deposition of first wall impurities High Z : TA-5: Development of the PWI basis in support of integrated high-Z scenarios for ITER. Liquid plasma-facing components Mixed materials : TA-6: Expected alloys and compounds and their influence on PWI processes Transients : TA-7: Mitigation of disruption loads for ITER. Heat load in ITER relevant ELM scenarios

21. 21E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom ITER high priority research needs : strongly PWI related [D. Campbell, ITPA CC meeting june 2008] 1. Disruption/ Runaway Mitigation 2. ELM Control/ Mitigation 3. Plasma Facing Materials Physics basis for ITER reference scenarios with W/ Be PFCs ; C removal 4. Scenario Development 5. Diagnostics Dust / Hot dust ; divertor erosion ; mirrors ; H/D/T inventory Beryllium Tungsten Carbon Heat loads, runaway electrons: reduction > 1 order of magnitude

22. 22E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom 1. Disruption/ Runaway Mitigation 2. ELM Control/ Mitigation 3. Plasma Facing Materials Physics basis for ITER reference scenarios with W/ Be PFCs ; C removal 5. Diagnostics Dust / Hot dust ; divertor erosion ; mirrors ; H/D/T inventory Heat loads, runaway electrons: reduction > 1 order of magnitude Fuel retention Fuel Removal Transient heat loads ELMs and disruptions Material erosion and transport in tokamaks Materials Material migration High-Z Materials ITER-like Material Mix Dust in fusion devices Dust EU-PWI TF : targeted at ITER through 7 SEWGs Material ErosionW R&D Fuel retention Dust Heat loads ITPA Div SOL : 5 topics

23. 23E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom 1. Disruption/ Runaway Mitigation 2. ELM Control/ Mitigation 3. Plasma Facing Materials Physics basis for ITER reference scenarios with W/ Be PFCs ; C removal 5. Diagnostics Dust / Hot dust ; divertor erosion ; mirrors ; H/D/T inventory Heat loads, runaway electrons: reduction > 1 order of magnitude Fuel retention Fuel Removal Transient heat loads ELMs and disruptions Material erosion and transport in tokamaks Material migration High-Z Materials ITER-like Material Mix Dust in fusion devices Dust Towards increased coordination … F4E EFDA Emerging Techno Diag TG MHD TG, ITM TF H & CD TG US : PISCES RF : plasma guns

24. 24E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom Task Force Plasma-Wall Interaction Main orientations at Annual General Meeting Contact Persons from 23 associations + JET TF E and FT, EFDA, F4E, ITER IO ITPA divertor and SOL (co-chair) Special Expert Working Groups Annual specialised meeting of SEWG members Joint meetings (mat migration + retention + removal) EU PWI TF: mature organisation Associations Baseline work programme Priority support EFDA ITM-TF TG MHD TG H&CD (ICWC) TG diags (LIBS) TG Materials TG Transport Emerging techno (Dust & T) (Disrup.)

25. 25E. Tsitrone PWI TF meeting, 4-6/11/2009, Warsaw Euratom Highlights of 2008 Strong participation in PSI and IAEA 2008 > 20 oral papers (2 PSI review) [see talk], > 100 publications ITER fuel retention ITPA DivSOL MIT meeting + IAEA + final report Joint meeting (ITM / MHD / PWI) on disruptions Preparation of WP2009 in new EFDA frame Call for interest launched in Summer 08 Task agreements finalised early 09 Annual meeting Frascati Oct. 2008 reporting : WP2008 95% executed (5% delayed)