Extension of IEA Implementing Agreement on Large Tokamak Facilities

1. Extension of IEA Implementing Agreement onLarge Tokamak Facilities Presented to Committee on Energy Research Technologies October 18-19, 2005 Paris, France Susana Clement-Lorenzo, IEA LT Liason to FPCC

2. Contents • Introduction and Background • Objectives, scope, and strategy of LT IA • Participants • Coordination with other fusion activities • Achievements and Benefits • Conclusions and recommendations

3. Introduction and Background • IEA Large Tokamak IA initiated in 1986: • EU (JET), Japan (JT-60), and U.S. (TFTR) • Evolved into a broad, vital collaboration in international tokamak fusion research • TFTR shutdown in 1997 leading to a broader U.S. participation • JET Joint Undertaking transitioned into EFDA-JET in 2000 leading to broad participation by the EU Associations; • JT-60U became one of 3 national centralized joint research devices in Japan in 2003 • The LT is one of the 9 IAs in FPCC • Leads three tokamak related IAs (LT, Poloidal Divertor, TEXTOR) in close coordination with the International Tokamak Physics Activitiy (ITPA)

4. Introduction and Background ( Cont.) • The current term of the Agreement is January 15, 2001 – January 14, 2006 • The ExCo has prepared an End of Term Report documenting the activities and accomplishments during this period, and significance of continuing the LT IA. • The LT IA will be a major contributor to advancing tokamak physics and technology in preparation for ITER operations during the ITER construction.

5. Objectives • The objective of the LT IA is to enhance effectiveness and productivity research and development effort related to the tokamak fusion concept by strengthening cooperation on Large Tokamak facilities • This becomes increasingly important as the world fusion program enters a major new phase with the ITER tokamak: • ITER poses great challenges in physics and technology, and provides for demonstration of scientific and technical feasibility of fusion for energy

6. Scope and Work Plan • The scope of collaborations include • Personnel exchanges (participation in experiments, data analysis, program planning and coordination) • Hardware exchanges (diagnostics, auxiliary heating and fueling systems, etc.) • Workshops on special scientific and technological topical areas • Work Plan is organized in topical areas of physics and technology

7. Topical Areas • Key fusion science issues: • Energy transport in plasmas • Plasma stability • Edge physics • Plasma – wave interactions • Optimized integration of these issues to achieve discharge scenarios for burning plasmas (ITER) and steady-state operation • Related technology issues such as Tritium handling, development of heating, fueling, and power exhaust technologies,

8. Cooperation Strategy • Phase I: 1986 – 1995 • Achieve technical objectives of large tokamaks • Phase II: 1996 – 2005 • Provide databases for the design of ITER and concept development for Advanced Tokamaks • Phase III: 2006 ~ • Prepare for ITER operating scenarios and further development of the Advanced Tokamaks, also in preparation for DEMO • Strategy is to enhance close coordination with broad fusion programs in experiments, theory, advanced computing, and technology in view of extrapolating towards ITER and DEMO

9. Participants in the IA • EU: EFDA Associates participating in the JET exploitation: many EURATOM Association laboratories participate in the collaborations through their JET activities • JA: JAERI and several universities through their JT-60U activities • US: GA (DIII-D), MIT (C-MOD), PPPL (NSTX), ORNL (technology), and several other labs and universities through the three facility programs.

10. Coordination with Other Fusion Related Organizations • Joint meetings and workshops with the other two tokamak related IA’s (Poloidal Divertor, TEXTOR) • Joint experiments identified by the International Tokamak Physics Activity (ITPA) to implement ITER High priority Research Tasks Joint workshops on tokamak technology with technology related IA’s (Environment & Safety, Nuclear materials) • Joint work under bilateral agreements with Russia and China • Joint workshops with IAEA

11. Achievements and benefitsduring the current term • Scientific Exchanges among the three Parties: • 16 Workshops; • 155 personnel exchanges, of which seven are long term (more than 4 weeks); • ~ 90 publications and presentations in major international conferences • Significant hardware exchanges on diagnostics and auxiliary heating systems • A very active FPCC IA contributing to the productivity of large tokamaks and fusion research, and thus to international political decision to implement the ITER Program.

12. Conclusions and Recommendations on IEA LT IA • Very productive in its twenty year history • Involves a broad cross section of fusion scientists in EU, JA, and US • Scientific and technological results from these collaborations are important for the technical success of ITER and fusion in the future • It is recommended that CERT approve the FPCC request to extend the agreement for another five years to January 14, 2011.