1. 1E. Tsitrone Progress report DITS 27/04/2007 Overview : E. Tsitrone (20 + 5 mn) Experimental campaign : B. Pégourié (15 + 5 mn) TPL analysis program : C. Brosset(25 + 5 mn) Integrated planning : M. Houry(10 + 5 mn) General discussion : all(30 mn) Progress report on the DITS project : Agenda

2. 2E. Tsitrone Progress report DITS 27/04/2007 Progress report on the DITS project : Overview What happened since the last project board ? Management plan Final finger selection Erosion / redeposition (confocal microscopy) Safety analysis Whats next ? On going activities Collaboration agreement Planning

3. 3E. Tsitrone Progress report DITS 27/04/2007 Internal review (CCAT, 20/12/2006) : project approved Technical : sample conditionning for storage samples from other PFCs (bumpers, outboard limiter) safety regulations regarding sample activation measurements for erosion/redep (confocal microscopy) : critical path, funding Management : definition of milestones / deliverables risk analysis budget regular reporting to our internal and external partners, web site integrated in the EU PWI TF work programme External review (08/12/2006) : Assessment from advisory board (J. Roth -EU PWI TF, M. Mayer-IPP, P. Roubin -PIIM) great relevance for predictions of the tritium inventory in ITER international collaborations world-wide available expertise preparatory discharge programme of high importance C. Brosset Since the last project board … B. Pégourié E. Tsitrone

4. 4E. Tsitrone Progress report DITS 27/04/2007 Management plan underway DITS : Deuterium Inventory in TS Compare particle balance / post mortem analysis in TS Identify retention mechanisms (bulk diffusion) implications for ITER

5. 5E. Tsitrone Progress report DITS 27/04/2007 Management : project phasing ObjectivesReview Phase 0a – DefinitionScientific objectives Feasibility study Project board 08/12/07 CCAT (20/12/2006) Phase 0b – OrganisationBudget / planning / resources, risk analysis, management plan Progress report 1 (27/04/07) Execution phase 1 : Experimental campaign D loading of TPL Monitor particle balance Progress report 2 : experimental campaign (july) Execution phase 2 : Dismantling / reassembly of TPL In situ analysis (lock in + erosion/redeposition) Extraction of selected fingers Progress report 3 : TPL dismantling/ in situ analysis (september) Execution phase 3 : Samples preparation Samples extracted and ready for analysis Progress report 4 : samples (november) Execution phase 4 : Samples analysis Perform analysis program Collect data Analysis and publication of results Intermediate meetings : partial results (tbd - 2008) Progress report 5 : global results (tbd – 2008/2009) Close out phase 5FeedbackCloseout review (tbd)

6. 6E. Tsitrone Progress report DITS 27/04/2007 Management : information sharing tools Slides available on the EU PWI TF web site (http://www.efda-taskforce-pwi.org/) in the SEWG on particle balance Participative web site underway : edoc (collaborative work, file archiving)

7. 7E. Tsitrone Progress report DITS 27/04/2007 Initial fingers selection Fluence dependance in erosion zones Thin / thick deposits Fast particles in ripple 1.7 MA, no perp. flux Courtesy of R. Mitteau, C. Brosset

8. 8E. Tsitrone Progress report DITS 27/04/2007 Final fingers selection (satellite projects) Migration C/retention D (41 tiles, fing 5, 27, 28) Structure CFC (6 tiles) PFC (2 tiles, fing 1 et 17) IR (6 tiles, fing 4 et 26) Detritiation (fing 6 et 10)

9. 9E. Tsitrone Progress report DITS 27/04/2007 Erosion/redeposition measurements Selected : Confocal microscopy surface mapping image difference for ero/redep. 2007 = starting point – next : in situ in TS Budget ~ 100 kEuros Call for support from regional funding (50 kEuros) Optical part : call for tender launched Mechanical part : final design approved Integration and test : july 2007 Measurements on sector : august 2007 on fingers : september 2007 ? ero redep Max resolution : 1 m in z, 20 m in x-y Reference inserted between fingers Zones : 200 mm (radial) x 100 mm (toroidal) 20° on TPL sector : 30 + 10 zones 11 days Planning optimization : sector equipped with new fingers extracted fingers (no impact on shutdown) z y x

10. 10E. Tsitrone Progress report DITS 27/04/2007 Sample activation Aim : TPL fingers and tiles = conventional samples 7 Be (period = 53 days) : limit at 100 Bq/cm 2 for surface contamination (1/10 of exemption limit) Previous measurements : scraping on TPL : 1-5 Bq/cm 2 (mobile) full deposits : < 50 Bq/cm 2 (fixed + mobile) Proposal for agreement on safety procedures underway : 3 phase control : On TPL sector monitored area in DRFC (sector dismantling, measurements, fingers extraction) On extracted fingers non monitored area in DRFC (tile extraction, analysis in DRFC) On tiles non monitored area outside CEA (conventional transport, sample cutting, analysis in our partners labs) Exchange protocol with external partners Annual report on samples

11. 11E. Tsitrone Progress report DITS 27/04/2007 Whats next ?

12. 12E. Tsitrone Progress report DITS 27/04/2007 On going activities … WP0 : Management : Management plan, information sharing tool (E. Tsitrone, L. Jourdheuil) Integrated planning (M. Houry, echange/DITS/PLANNING) Safety aspects : ok for conventional operation (K. Zunino), agreement on specific procedures for sample activation (F. Saint Laurent) WP1 : Experimental campaign : Preparatory experiment (11/05/2007), diagnostics strategy (P. Moreau) Dedicated campaign manning (B. Pégourié) WP2 : TPL dismantling : Specific tooling for TPL sector and fingers protection (A. Martinez) SATIR test (new fingers selection) (J. Schlosser) Planning / human resources for summer shutdown (F. Samaille, M. Houry) WP3 : TPL analysis : Preparation for confocal microscopy (E. Gauthier, H. Roche) Validation of tile extraction process (J. Schlosser) Integrated analysis program (C. Brosset) Sampling from other PFCs (C. Brosset)

13. 13E. Tsitrone Progress report DITS 27/04/2007 WP4 : Satellite projects Dust : Characterisation + effect of maintenance, sampling location, analysis program (MEB) IR : low cost option Thermal properties of deposited layers (power balance for IR on TPL) : with available laser (Speckle) IR monitoring of neutralisers : simple fiber replacement Cancelled : upgrade of calorimetry, active thermography, TPL cleaning procedure PFCs : Lock in thermography on extracted sector Analysis of defective tiles on Q6A Oxydation of cooling channels Cancelled : finger repair Added : acoustic sensor for CHF detection (feasibility) Detritiation : Test on deposited layers + gaps : laser cleaning (CEA) : lab through safety procedures before commisionning oxydation/scavengers : CIEMAT, MEPHI

14. 14E. Tsitrone Progress report DITS 27/04/2007 Collaboration agreement for analysis Integrated into EU PWI TF (STAC), preferential support in 2008 for EU participating labs ? Call for interest after last project board : all needed measurements covered Collaboration agreement : Integrated analysis program Sample preparation / identification Experimental protocol for all measurements involved Data collection (data format, intermediate reports …) Strategy for global analysis Publication policy : editorial board (TS + participating labs) Suggestions welcome !

15. 15E. Tsitrone Progress report DITS 27/04/2007 Provisionnal planning for TS JanFeb.JanFeb.MarchAprilMayJuneJuly.Aug.Sept.Oct.Nov.Dec. Arrêt hiver 06/07 3 4,52 1 5 4 AIA (V+T) AIA (PA) Winter shutdown Winter SD 07/06 Summer Shutdown 01/10 Cat.1 Dismantling 3D Meas. Install ICRH Iter-like 12/06 DITS 12/09 3 4,52 2 1 5 4 1 5 5 3 4 Spec Consult. Real. Assemb. 3D Diagnostic manufact.

16. 16E. Tsitrone Progress report DITS 27/04/2007 Provisionnal planning for DITS 11/05/07Validation of plasma scenario 23/05/07Carbonisation + boronisation 24/05/07 up to 07/06/07 Dedicated campaign (10 days, long shift) June 2007TS opening Control TS + TPL sector TPL dismantling Lock in Thermography Extraction selected fingers Control on fingersReplacement by new fingers July 2007Leakage test of TPL sector August 2007Confocal microscopy on TPL sector September 2007 Confocal microscopy on extracted fingers Tile extraction Control on tiles Samples cutting from tiles TPL reassembly in TS October 2007 Samples characterization Sample ready for analysis TS restart DITSTS