FESAC Panel on Priorities

Transcription

1 FESAC Panel on Priorities Overview and Invitation to Friday s ICC Community Discussion Sessions Mike Mauel ICC 2004

2 October, 2003 Ray Orbach Charges FESAC to Respond to Key Recommendation of NRC Burning Plasma Committee Although active planning has been undertaken by the U.S. fusion community in recent years, the addition of so major a new element as ITER requires that to ensure the continued success and leadership of the U.S. fusion science program the content, scope, and level of U.S. activity in fusion should be defined through a prioritized balancing of the program. Identify the major science and technology issues Recommend a priority for these campaigns How to organize campaigns to address these issues? Assume ITER construction funding is provided in addition to base. For all cases, assemble a balanced domestic program that takes into account fusion program abroad and that includes ITER as an integrated part of the whole. Include IFE and high energy density physics Look at the program through 2014.

3 25 committee members, broadly represents entire fusion community Charlie Baker (Chair) and Stewart Prager (Vice-Chair) Decisions to date: 1. Keep a science focus emphasizing broad research thrusts to answer key science and technology questions 2. Invite full participation and input from fusion community Three-step work plan: 1. Develop overarching themes and topical questions (done) 2. Define working groups that encourage community input and define key research thrusts (6 working groups now active) 3. Develop integrated report with feedback from community

4 Six Working Groups Macroscopic Behavior (Jerry Navratil/Mike Zarnstorff) Multi-scale Transport Behavior (Paul Terry/Earl Marmar) Plasma Boundary/Interfaces (Steve Allen/Mike Ulrickson) Waves and Energetic Particles (Ernie Valeo/Grant Logan) High Energy/Implosion Physics (Max Tabak/Ricardo Betti) A: Materials & Chambers (M. Abdou/Steve Zinkle) B: Plasma & IFE Tech (Stan Milora/Wayne Meier)

5 Six Working Groups T1: Magnetic Structure? T2: Beta Limits? T3: External Control and/or Self-Organization? T4: Turbulence? T5: Generation of Currents and Mass Flows? T6: Reconnection? T9: How to interface burning plasma to its cold surroundings? T10: Heavy Ion Beam Physics? T11: Wave-Plasma? T12: Energetic Particles-Plasma? T7: How to create HEDP? T8: Hydrodynamic stability? T13: Fusion Chamber Systems? T14: Fusion Materials? T15: Plasma Engineering: Heating, Fueling, Pumping,?

6 Working Group Tasks Welcome all interested participants Develop and define high priority research thrusts (about 2-3) per question Prepare a draft research plan ( approach ) for each of the topical questions (about 3-5 pages) - Emphasize the scientific challenges of the topical questions and the proposed research approaches and research thrusts to address those questions. - Deadline: June 11, 2004 Prepare 2-page summary. (Deadline: June 16, 2004) Presentation to FESAC. (July 26, 2004) (Final working group draft by August 1?)

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9 Friday s Discussion Session (8:30 AM) Update Presentations from Working Group Chairs (2 x 25 min with Q & A): - Jerry Navratil: Macroscopic Plasma Behavior - Paul Terry: Multi-Scale Transport Behavior (9:30 AM) Working Group Discussions (90 min) (11:00 AM) Plenary: Discussion reports from each working group.

10 My Opinions This exercise is important and a great opportunity - Concise communication only helps policy makers do the right thing - We need to express our science in broad, compelling, easyto-understand questions and plans. With well formulated priorities, we will be best able to secure support for fusion whether or not ITER moves forward. It is more important to explain how we will work together than to include every program element in a long to-do list. Our audience is not OFES. Think broadly. (How can we convince our mothers that we have a good plan for fusion?)

11 My Advice Get involved - Sign-up on working group lists. - Post your thoughts, questions, and positive suggestions on the list servers. Continue to create (don t give up, be bold!), but ICC s should be neither isolated nor independent from tokamak fusion. - ICC s provide an alternative to the main path, but we share the same physics & technology base. (next oral session) - ICC s are a source of innovation and discovery, but we both contribute to and benefit from the main path - In next decade, ICC s will improve our vision for fusion power, but this vision comes through improved understanding and very good science. ( this conference!)

12 How are ICC s Part of an Overall Approach to Answer Fusion s Key Questions? (T1) How does magnetic field structure affect plasma confinement? (T2) What limits the maximum pressure that can be achieved in laboratory plasmas? (T3) How much external control versus self-organization will a fusion plasma require? (T4) How does turbulence cause heat, particles, and momentum to escape from plasmas? (T5) How are large-scale electromagnetic fields and mass flows generated in plasmas? (T6) How do the magnetic fields in plasma rearrange and dissipate their energy?

13 Overview and Plans for Gerald Navratil, Chair Michael Zarnstorff, Vice-chair Innovative Confinement Concepts Workshop 2004 Madison, WI May 2004

14 Outline Introduction & Context WG Charge & Approach Timeline Present Status Plan & Objectives for Breakout Session

15 Introduction & Context Orbach: I would like FESAC to identify the major science and technology issues that need to be addressed, recommend how to organize campaigns to address those issues, and recommend the priority order for these campaigns.

16 Introduction & Context Orbach: I would like FESAC to identify the major science and technology issues that need to be addressed, recommend how to organize campaigns to address those issues, and recommend the priority order for these campaigns. Program planning and prioritization has been done since the program started; how is this any different? We are all very familiar with development program milestone based planning: o Reach Q=1 in DT plasmas o Demonstrate β N -H > 10 for more than 1 skin time o Operate an ST at 1 MA for more than 0.5 seconds o Demonstrate stable operation at 4% beta in a compact stellarator

17 Introduction & Context Since the restructuring in 1996, we have used programmatic planning structure supported by unifying science issues being addressed:

18 Introduction & Context Now the NRC Panel [trying to help us] recommends we go a step further, and establish a science goal based framework for the program and to use this as a tool for program planning as our participation in ITER is incorporated into the domestic program. Example cited is recent Quarks to Cosmos plan in HEP. o Will help our program better communicate its goals and defend the domestic program to policy makers in Congress and the executive Branch o Will make us look more like other science programs in the Office of Science communication with scientific community. o Provide a clear and understandable set of goals for broader audience.

19 Innovative Confinement Concepts: are you discussing how to apply modern approaches to the construction of prisons.

20 Introduction & Context FESAC Priorities Panel is engaged in mapping the scope of our program and its goals into a new science basis : They start with a nearly diagonal transformation of the 3 program goals of the 1996 restructuring o Advance plasma science in pursuit of national science and technology goals. o Develop fusion science, technology, and plasma confinement innovations as the central theme of the domestic program. o Pursue fusion energy science and technology as a partner in the international effort. Into 3 overarching questions : o O1. What are the dynamics of matter and fields in the hightemperature plasma state? o O2. How can we create a controlled, self-heated, burning starfire on earth? o O3. How can we make fusion power practical?

21 Expand Fusion Research Into 15 Topical Questions: Topical Questions T1 T2 T3 O1 O2 O3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15

22 Group Into Six Themes, each assigned to a WG: Themes Macroscopic Plasma Behavior Topical Questions T1 T2 T3 O1 O2 O3 Multi-scale Transport Behavior High Energy Density Implosion Plasma Boundary Interfaces Waves and Energetic Particles T4 T5 T6 T7 T8 T9 T10 T11 T12 Fusion Engineering Science Priorities Panel T13 T14 T15

23 WG Charged to Identify 3 Research Thrusts per Topical Question: Themes Macroscopic Plasma Behavior Topical Questions T1 T2 T3 Research Thrusts O1 O2 O3 Multi-scale Transport Behavior High Energy Density Implosion Plasma Boundary Interfaces Waves and Energetic Particles T4 T5 T6 T7 T8 T9 T10 T11 T12 Fusion Engineering Science Priorities Panel T13 T14 T15 Working Groups

24 Priorities Panel Organizes into about 10 Campaigns: Themes Topical Questions Research Thrusts Campaigns Macroscopic Plasma Behavior T1 T2 T3 O1 O2 O3 Multi-scale Transport Behavior High Energy Density Implosion Plasma Boundary Interfaces Waves and Energetic Particles T4 T5 T6 T7 T8 T9 T10 T11 T12 Fusion Engineering Science Priorities Panel T13 T14 T15 Working Groups Priorities Panel

25 Priorities Panel Then Defines Priorities in 3 Budget Cases: Themes Topical Questions Research Thrusts Campaigns Macroscopic Plasma Behavior T1 T2 T3 Priorities O1 Multi-scale Transport Behavior T4 T5 T6 Priority 1 level $ Priority 2 O2 High Energy Density Implosion T7 T8 +$ Priority 3 O3 Plasma Boundary Interfaces T9 ++$ Waves and Energetic Particles T10 T11 T12 Fusion Engineering Science Priorities Panel T13 T14 T15 Working Groups Priorities Panel

26 Working Group Tasks Welcome all interested participants Develop and define high priority research thrusts (about 2-3) per question Prepare a draft research plan ( approach ) for each of the topical questions (about 3-5 pages) - Emphasize the scientific challenges of the topical questions and the proposed research approaches and research thrusts to address those questions. - Deadline: June 11, 2004 Prepare 2-page summary. (Deadline: June 16, 2004) Presentation to FESAC. (July 26, 2004) (Final working group draft by August 1?)

27 Macroscopic Plasma Behavior WG Plan Use web-based format to iterate drafts with the community GAN & MZ acting as Snowmass-like facilitators to consolidate comments and input. Timetable towards June 11 deadline: o Use ICC meeting to better characterize what a research thrust should represent and refine strawman-draft thrusts. o Draft 1 posted by May 31 o Draft 2 posted by June 6 o Final Draft by June 11 Continue to iterate towards Final Version in August.

28 What Paradigm to Use in Establishing Thrusts? Thrust should define a body of research topics AND a group of researchers that would naturally meet, work, and plan together (e.g. like a TTF working group). RG points out if we follow this logic then each of 5 other WGs [we already have the TTF for Multi-Scale Transport] could lead to task force like groups formed to plan and execute the research thrusts/campaigns.

29 Strawman Research Thrusts for T1 T1: How does magnetic field structure affect plasma confinement? T1-A: 3D Configurations: effect on stability and of quasisymmetry T1-B: Low Aspect Ratio Configurations T1-C: B-poloidal only configurations T1-D: Current Profile: Steady-state, Shear, Current Hole,

30 Strawman Research Thrusts for T2 T2: What limits the maximum pressure that can be achieved in the laboratory? T2-A: Low-n Ideal Modes: Tilt, Shift, Kink, RWM, T2-B: Low-n Non-Ideal Modes: Tearing, NTM, Fishbone, Kinetic Effects, T2-C: 3D Equilibrium & Stochastic Fields T2- D: High-n Modes: Mercier, Ballooning, Interchange, T2-E: At the transition from Closed to Open Flux surfaces at the edge of a confined system

31 Strawman Research Thrusts for T3 T3: How can external control and plasma selforganization be used to improve plasma confinement? T3-A: Pressure Driven Current Self-organization: Bootstrap, Diamagnetic, Pfirsch-Schlüter T3-B: Dynamo Self-organization T3-C: Strong External Control: Dipole, Stellarator, T3-D: Rotation Shear Self-organization

32 Plan & Objectives for Breakout Session Ray Fonck will serve as Discussion Facilitator; GAN and MZ will participate and answer questions but emphasis will be on generating idea and views from the ICC community. We only have 90 minutes so need for focus discussion on big issues and give us constructive input. Our view of most critical issues we want advice on: o #1 Issue: How do we structure thrusts [only 2 to 3 per question!] to properly include (and defend) important contributions from ICC research. o #2 Issue: What 2 to 3 thrusts should we choose for each of our three Topical Questions?

33 Multi-scale Transport Behavior Working Group Paul Terry, Chairman Earl Marmar, Vice Chairman Questions T4 - T6 T4: How does turbulence cause heat, particles, and momentum to escape from plasmas? T5: How are large-scale electromagnetic fields and mass flows generated in plasmas? T6: How do the magnetic fields in plasma rearrange and dissipate their energy?

34 Electronic Forum Send Multiscale_transp mailing list submissions to To subscribe or unsubsribe via the World Wide Web, visit or, via , send a message with a subject or body help to multiscale_transp-request@lists.psfc.mit.edu You can view the webpage at

35 Report template Issue O1: Understand the dynamics of matter and fields in the hightemperature plasma state O2: Create and understand a controlled, self-heated, burning starfire on earth O3: Make fusion power practical Research Approach Research Thrusts Relative Emphasis

36 T4 draft report on web; suggestions welcome Transport crucial to O1, O2, O3 - arguments welcome Research relevant to ITER, research complementary to ITER? Importance of Verification and Validation (V&V) Thrust areas: Transport governed by ion scale fluctuations, including ion heat, particle, momentum transport Electron thermal transport (by whatever fluctuations cause it) Transport in edge and pedestal regions Community input sought on: Motivation - why do we care? Key questions Key research activities over next 5-10 years Resources needed Relative emphasis

37 T5: Input from community is being gathered O1: strong connections to astro, planetary and atmospheric physics O2,O3: via transport; ICC V&V also important; examples? Thrust areas: Large scale self organization of magnetic fields and current Large scale self organization of flows, including mean and zonal flows Community input sought on: Motivation - why do we care? Key questions Key research activities over next 5-10 years Resources needed Relative emphasis

38 T6: Input is being gathered and discussed - outline of report to be posted on web in next few days O1: strong connections to astrophysics O2,O3: NTM, sawtooth oscillations, RWM V&V also important; examples? Thrust areas: Spatio-temporal behavior of reconnection What triggers and quenches reconnection Community input sought on: Motivation - why do we care? Key questions Key research activities over next 5-10 years Resources needed Relative emphasis