Report on W66 at W69 M. L. Watkins 1 (4) MIT, Cambridge, MA, USA, 11 December 2008 Report on Sixth Joint Workshop (W66) “Implementation of the ITPA Coordinated Research Recommendations” November 2007 EFDA-JET, Culham Science Centre, Abingdon, Oxon., UK Background ITPA is effective international body for generating coordinated experiment plans across wide range of fusion research topics IEA IA’s and Bilateral Agreements provide structure for personnel and hardware exchanges Joint Workshops stimulate and facilitate increased multi-machine Joint Experiments amongst tokamak programmes Held jointly by three tokamak-related IEA IA’s and ITPA, with participation of ITER IO Attendance at W66 26 participants, including Chairs and ExCom members of IEA IA’s, Chair and members of ITPA CC, Chairs/representatives of six ITPA TG’s, ITER IO senior staff 11 major world tokamaks (JET, JT-60U, DIII-D, AUG, C-MOD, Tore Supra, TEXTOR, FTU, NSTX, MAST and KSTAR) represented by Programme Leaders TCV, Russian, Chinese and Indian tokamak representatives unable to attend

Report on W66 at W69 M. L. Watkins 2 (4) MIT, Cambridge, MA, USA, 11 December 2008 Aims and achievements of W66 Review status of implementation of IEA/ITPA Joint Experiments between various tokamaks –Report for 2007 from ITPA CC Chair (R. Stambaugh) –8 Joint Experiments closed or completed in 2007 Discuss new ITPA proposals which would benefit from coordination of Joint Experiments –Proposals for 2008 from ITPA TG’s (R. Stambaugh; ITPA TG Chairs) –7 new proposals for Joint Experiments for 2008 –60 active Joint Experiments in 2008 Commit to implementation of proposals on major world tokamaks through agreements such as the three tokamak-related IEA IA’s –Following “break-out” sessions with ITPA TG Chairs, Programme Leaders indicated level of commitment to Joint Experiments Collate Operation Plans of Facilities (J. Schweinzer) Interact with ITER IO (see later)

Report on W66 at W69 M. L. Watkins 3 (4) MIT, Cambridge, MA, USA, 11 December 2008 Outcome of W66 At W66, tokamak Programme Leaders indicated level of commitment to Joint Experiments and ITPA / ITER were invited: –to prepare proposal on “Hydrogen Physics Aspects for ITER” for submission by end of January 2008 (CDB TG / ITER IO, resulting in CDB-11, CDB-12) –to consider proposal on “Spectrum Requirements for ELM Suppression/Mitigation by Coils” for submission by end of January 2008 (PEP TG) –to update MDC-1 to include “Disruption mitigation by massive gas jets” for submission by end of January The proposal should also cover open issues from DSOL-11 which was closed (MDC TG) –to consider Joint Experiments on electron transport, including turbulence measurements (CDB / TP TGs) After W66, the commitments made by tokamak Programme Leaders were confirmed, and consolidated by R. Stambaugh –Final Joint Planning Spreadsheet for CY08 distributed by R. Stambaugh on 13 May 2008 Coordinated effort resulting from W66 added value to experiments on individual Facilities and resulted in personnel exchanges ITPA TG Chairs were thanked by R. Stambaugh (work by 100’s people; 10’s M$) More focussed on ITER consolidation and exploitation Next meeting at MIT/PPPL end November/early December 2008

Report on W66 at W69 M. L. Watkins 4 (4) MIT, Cambridge, MA, USA, 11 December 2008 Interaction with ITER IO at W66 Presentations Report on ITER Research Needs (D. Campbell, Assistant DDG, FS&T Department) Report on Status of the ITER Project (N. Holtkamp, ITER PDDG) Discussions Between ITPA CC and ITER FS&T Department (open, in part, to W66 participants) ITPA in ITER Physics Activities –Help develop physics basis for ITER operations –Integrate ITER Members’ results into ITER operations’ planning –Contribute to ITER Physics Work Plan (submission to DAs to ensure implementation) –Adapt ITPA (see change of TGs this time) –Recognise ITPA is more than High Priority Coordinated Experiments ITPA under auspices of ITER (Proposal of ITER DDG) –Address degree of alignment of ITPA High Priority Coordinated Experiments with ITER needs (26/60 ITPA experiments; NTMs less of issue for ITER in view of ECCD control) –Hjghlight most urgent ITPA experiments (timeliness, or not) –Address short term issues; cut across ITPA TGs, If appropriate –Provide framework for (voluntary) coordinated physics basic research activities Implementation under Bilateral and IEA agreements (eg. for exchanges of personnel and hardware)