r.zagórski, pwi annual meeting, 4-6 november 2009, warsaw 1 research directions under efda wp...
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw1
Research directions under EFDA WP 2009/2010
Roman ZagórskiEFDA
Acknowledgements to EFDA CSU Garching, Task Forces and Topical Groups
R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw2
OUTLINE:
•EFDA structure & EFDA WP 2009/2010•EFDA Meetings•HPC FF
R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw3
Coordination of R&D: Coordination of R&D: EFDA Task Forces & Topical GroupsEFDA Task Forces & Topical Groups
Task Forces under EFDA PWI Task Force: Leaders E.Tsitrone (CEA) and R.Neu (IPP)
ITM Task Force: Leaders P.Strand (VR), R. Coelho (IST), LG Eriksson (CEA)
Topical Groups under EFDA
Transport Topical Group: Chairman C.Hidalgo (CIEMAT)
H&CD Topical Group: Chairman A.Becoulet (CEA)
Materials Topical Group: Chairmen S.Dudarev (UKAEA) (S.Gonzalez) M. Reith (FZK)
Diagnostics Topical Group: Chairman T.Donné (FOM)
MHD Topical Group: Chairman P.Martin (ENEA-RFX)
Emerging Technologies & DEMO oriented activities(A.Malaquias)
R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw4
European Charge:European Charge:Integrated ModellingIntegrated Modelling
IAEA-TM 2009, Aix en Provence, P. Strand
EFDA SC (03)-21/4.9.2 (June 24th, 2003)
R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw5
ITM StructureITM Structure
Experimental data base
Modeling data base ISIP
ISIP
IMP5IMP4IMP2IMP1
Equilibrium and LinearMHD Stability
Non linear MHD phenomena
Transport Processesand Micro-stability
Heating, Current driveand fast particles
ISIP
ISIP
ISIP
ISIP
ISIP
ISIP
IMP3
Transport code and discharge evolution
ISIP
ISIP
ISIP
ISIP
a b
MHDequilibriumand stabilitymodules
Non-linearmodules(saw-teeth,ELMs, NTMs)
c d
Transportmodels
Sourcesand sinks
e f
Interfaces toboundaries
Whole devicemodeling
ISIP = Infrastructure and Software Integration Project
6of ? slides 6R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
ITM TF ITM TF Work Programme 2009Work Programme 2009
Atomic, Molecular, Nuclear & Surface Physics Data (AMNS)Experimentalists and Diagnosticians Resource Group (EDRG)
7of ? slides 7R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
ITM TF - ITM TF - Work Programme 2010Work Programme 2010
ITM Call for participation to be launched soon (November)
PWI related tasksIntegration of edge codes (ERO, ASCOT, ASPOEL, ..) in the ITM structure:Development of relavant CPO’s, coupling with other codes (e.g. ETS + edge code (SOLPS))
R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw8
Standard Tokamak operation relies on the H-mode where improved confinement comes from the edge pressure gradient
distance from axis
pre
ssure
L-mode
pedestal
H-mode
With additional power:
Steep edge pressure gradient: H-mode scenario
Separatrix
X-point
Divertor
distance from axis
EFDA Transport Topical Group
Most important physics questions revolve around the edge transport barrier
R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw9
Example: turbulent transport simulationExample: turbulent transport simulation
• Core Ion transport well understood from Ion Temperature gradients instabilities,
• Electron generated micro turbulence and related transport yet to be understood,
• Transport mechanisms in the H-mode pedestal not understood.
EFDA Transport Topical Group
Study the long wave correlations and turbulent transport in the pedestalValidate the measurements from invasive diagnostics with non-invasive methods
Study the effect of rotation, impurities … on plasma transport
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
Call for Participation launched deadline for answers 20 November 2009
Transport TG – WP2010
Task Agreement WP10-TRA-01: L-H transition physics- L-H power threshold and ELM control techniques- Role of atomic physics mechanismsTask Agreement WP10-TRA-02: Turbulent electron transportTask Agreement WP10-TRA-03: Particle and impurity transport in standard andadvanced tokamak scenarios- Experiments on impurity transportTask Agreement WP10-TRA-04: Role of neoclassical and turbulent mechanisms inplasma rotationTask Agreement WP10-TRA-05: Statistical properties of edge turbulent transport- Diagnostics for edge turbulence-Theory and modelling of edge turbulence
R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw11
Top Priority: Avoidance and Mitigation of Disruptions
“Disruptions”, abrupt termination of the plasma, need to be limited on ITER
Why ?
- transient loads on plasma facing components (erosion/melting)
- forces on vessel and in-vessel components
- recovery from disruption (loss of availability for experimentation)
How ?
- disruption avoidance (precursors) and mitigation
- operation away from stability limits (avoid too ambitious plasma operation)
Infrared view of the vessel during a disruption at JET showing the thermal loads in the plasma facing components
EFDA MHD Topical Group
R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw12
STABLE
STABLE WITH CONTROL
UNSTABLE
Operation at high pressure requires qmin > 2 and active control of plasma instabilities.
Coils
EFDA MHD Topical Group
q=2q=1
Study and develop active control of plasma instabilities
MHD Topical groups addresses the performance limiting MHD instabilities: - NTMs (Neoclassic Tearing Modes),- RWM (Resistive Wall Modes)- ELMs (Edge Localized Modes)
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
Call for Participation launched deadline for answers 20 November 2009
MHD TG – WP2010
Task Agreement WP10-MHD-01: Fast Particles Physics- Experiments on fast particle instabilities-Assessment of ITER needs and feasibility studies
Task Agreement WP10-MHD-02: Disruptions-Runaway electrons - Electromagnetic forces- Mitigation and avoidance
Task Agreement WP10-MHD-03: Sawtooth and Tearing Modes (NTMs), Edge Localised Modes (ELMs) and Stability at high Beta (RWMs)- Sawtooth and Tearing Modes- Edge Localised Modes- Stability at high Beta
R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw14
Heating & Current Drive Topical GroupOrganised in 4 co-ordinating committees, corresponding to the
4 heating and current drive systems
Neutral Beam Injection (NBI)• Development of NNBI big technical challenge for ITER (> 70%)
Programme focuses on the development of NNBI advanced neutralizers
Ion Cyclotron Resonant Heating (ICRH)• Coupling in ELMy H-mode• Arc detection for component protection
Programme focuses on the development arc protection systems for ICRH
R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw15
Heating & Current Drive Topical Group
Electron Cyclotron Resonant Heating (ECRH)• Recent development of 1MW Gyrotrons for ITER• Important for localized current drive for control• Inefficient for bulk current drive
Programme focuses on the Real-time Polarization Control of EC waves to avoid overheating of machine structures
Lower Hybrid Current Drive (LHCD)• Presently not credited in ITER baseline. • Only system capable of efficient off-axis bulk current drive for the
development of advanced scenarios.
Programme focuses on the development of LHCD for ITER
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
Call for Participation launched deadline for answers 20 November 2009
H&CD TG – WP2010
HCD-01-01: Experimental simulation of non-linear burning plasmaHCD-01-02: Reliability of Plasma Operation (conditioning and initiation)ICRF assisted wall conditioning:Perform experimental and modelling studies to assess the quality of the RF-produced plasma and the efficiency of the wall conditioning actions.Identify the necessary code developments and implement them.
HCD-01-03: Reliability of ICRH and LHCDNeutral Pressure in front of RF antennasEdge plasma modelling
HCD-01-04: Reliability of ECH and ECCDHCD-01-05: Specific H&CD physics for ITERHCD-01-06: Off-axis Current Drive and rotationHCD-01-07: Fuelling PhysicsIntegration of particle control in ITER plasma scenarios simulationsReinforce the activities on integration of particle control in ITER plasma scenariossimulations. Develop predictive modelling for gas flow coupling the divertor, pumping, andduct systems.
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
Call for Participation launched deadline for answers 20 November 2009
H&CD TG – WP2010
Task Agreement HCD-02-01: Support to European Facilities and ITER (LHCD)
Task Agreement HCD-02-02: Reliability of Neutral Beam Advanced Technologies
Task Agreement HCD-02-03: Fuelling TechnologiesPumps Systems·Assess the ITER solutions for pumping & fuelling and derive requirements for thesesystems under various DEMO configuration options (outline R&D needs, identifyimmediate and longer term actions)·Review status of pump development of interest for DEMO.·Initiate work in the area of steady-state, tritium-compatible rough pumping.
R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw18
Diagnostics Topical Group• New or improved techniques for measuring key parameters
required for operation of future devices ITER/DEMO (for the machine protection, infer physical processes and parameters; and for plasma control).
– Ex. Plasma flows in divertor, isotope plasma composition, confined alpha particles.
• Measurements for physics studies, in order to improve understanding with experiments in present devices in key physics issues for ITER and DEMO.
– Turbulence measurements of the pedestal plasma
ITER and DEMO present a culture change due to the harsh environment for diagnostics in terms of heat and neutron fluencies; difficult/no access for maintenance and repairs.
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
Tasks WP2008-2009 Diagnostics Topical GroupTasks WP2008-2009 Diagnostics Topical Group
TaskTask ITPA ITPA HPHP
ITER ITER HPHP
EFPWEFPW MHDMHD TransTrans H&CDH&CD DIAGDIAG PWIPWI
Plasma position reflectometryPlasma position reflectometry XX
Escaping fast alphasEscaping fast alphas XX XX
Fuel ion ratioFuel ion ratio XX
Neutron based diagnosticsNeutron based diagnostics XX
Measurement of confined alphasMeasurement of confined alphas XX XX
Development of edge current measurementsDevelopment of edge current measurements XX XX
Long range correlations in edge transport Long range correlations in edge transport barriersbarriers
XX XX
Heat load controlHeat load control XX
Material deposition and composition of wallsMaterial deposition and composition of walls XX XX XX
DEMO specific diagnostics constraints (WG)DEMO specific diagnostics constraints (WG) XX
Feedback control (WG)Feedback control (WG) XX
Data analysis and calibration (WG)Data analysis and calibration (WG) XX
The annual meeting of DTG was held on April 1st and 2nd, where preliminary progressesof these tasks were discussed together with proposals for WP 2010
DTGDTG
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
Heat load controlHeat load control
First robust and fast algorithms need to be developed for the identification of First robust and fast algorithms need to be developed for the identification of patterns in the IR images that are useful for the control objectives at hand. patterns in the IR images that are useful for the control objectives at hand. Optimization of the implementation of the algorithms to meet the speed Optimization of the implementation of the algorithms to meet the speed requirements needed for the real time applications.requirements needed for the real time applications.
This task is assigned to This task is assigned to ENEA-RFXENEA-RFX (recognition algorithms)(recognition algorithms)
Material deposition and composition of wallsMaterial deposition and composition of walls
Comparative experiments on Comparative experiments on laser-induced breakdown system (LIBS) laser-induced breakdown system (LIBS) to define to define the optimized parameters for a future implementation of a LIBS device on a the optimized parameters for a future implementation of a LIBS device on a tokamaktokamak
This task is assigned to This task is assigned to ENEAENEA (LIBS)(LIBS)TARTU, CEA TARTU, CEA MEdC (tiles with coating to test LIBS)MEdC (tiles with coating to test LIBS)IPPLMIPPLM
Tasks DTG WP2008-2009 of interest for PWITasks DTG WP2008-2009 of interest for PWIDTGDTG
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
Tasks WP2010 Diagnostics Topical GroupTasks WP2010 Diagnostics Topical Group
Call for proposals launched on October 15th , deadline November 20th
Tasks of interest for PWI
Diagnostics for protection of plasma facing components
Next annual meeting: Garching, March 2010. Reporting tasks WP08-09 and kick-off WP2010
DTGDTG
R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw22
EFDA Meetings 2009
1. EFDA meeting on Fuelling and Particle ControlGarching 19-20 March 2009
2. EFDA Workshop on DiagnosticsGarching 1-2 April 2009
3. EFDA Technical Meeting on PSI FacilitiesGarching 18 June 2009 (R..Neu)
4. ITM Taskforce Task Force Project Leaders and General Annual MeetingFZJ, Juelich 6-11 September 2009
5. Transport Topical Group 2nd Annual meetingUKAEA, Culham 16-18 September 2009
• EFDA Technical Meeting: status of DEMO achievements under EFDAGarching 29- 30 September 2009
• 17th European Fusion Physics Workshop7-9 December 2009 , Velence, Hungary
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
“Fuelling/Pumping or Particle Control”
Transversal activity across TG and TF
•Fuelling, Particle Control and Tritium economy in future devices•Burn and Particle Control•Pumping, divertor operation and SOL physics•Fuelling and Pumping Technologies•Fuelling and H&CD•Other fuelling applications
FuellingFuelling Meeting, Meeting, 19-20 March 2009 19-20 March 2009
← Sessions
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
1- Pellet fuelling experiments to validate ITER scenarios. Assist in pellet fuelling database for extrapolation to ITER
2- Modelling of pellet physics: drift, dispersion and evaporation in particular in the pedestal, as well as impact on the plasma such as the L-H power threshold, ELM triggering.
3- Reinforced activity on integration of particle control in ITER plasma scenarios simulations:
- Analysis of the consequences of slow ITER pumping rate on wall conditioning (GDC and RF) and on scenarios (compatibility with radiative divertor).
- Predictive modelling for gas flow coupling the divertor, pumping, and duct systems (also for DEMO) (detailing leaks -> pumping efficiency per species).
EFDA WP Programme 2010: Fuelling physics
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
DEMO Meeting, DEMO Meeting, 29- 30 September 200929- 30 September 2009
Aim of the meeting:Aim of the meeting:
•Make the point of the progress achieved under EFDA in the main issues for DEMO Make the point of the progress achieved under EFDA in the main issues for DEMO as an integrated systemas an integrated system•Give an input to the DEMO working group recently established by CCE-FU/F4E, for a Give an input to the DEMO working group recently established by CCE-FU/F4E, for a unified EU approach the next R&D activityunified EU approach the next R&D activity
Sessions: 1) Introduction - Physical assumption2) DEMO as a complex system (D. Maissonier)3) Reliability and control (safety, availability, plasma control and performance, diagnostics) (K. Lackner)4) Power handling (walls / divertor) (P. Lorenzetto)5) Maintenance (Tritium & dust removal, remote handling) (A. Tesini)6) Tritium self-sufficiency (M. Gasparotto) 7) Round table: General discussion and possible input for the CCE-FU/F4E DEMO working group
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
Need for a more integrated approach DEMO as a complex system requires many problems, technical and
physical, to be tackled consistently respect to each other
Physics R&D: it is essential to have an accompanying tokamak -- answers from ITER too late for the “fast track”--
Technology R&D: more effort to be put on
- materials sciences (+ IFMIF construction)- development of the fundamental subsystems# breeding blanket for the T self-sufficiency # H&CD for profile control# high T cooling for efficient thermal energy conversion etc...
Trade-off performance for reliabilityThe performance parameters cannot be independently optimized, large
limitation coming from power handling and control Important questions:
Quasi-continuous or Steady State? Electricity Production - Amount and efficiency?H&CD systems – how many?
Conclusion Conclusion
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
Conclusion Conclusion
Critical Issues:Divertor and PFC
Divertor is a (THE) major component impacting on plasma scenarios and physics: a realistic technological limit on power handling is a key ingredient for DEMO specifications (< 20 MW/m2??)
Need for testing and developing advanced concepts:
Configurations for increased flux expansion, Super X
Tungsten: still some crucial issues: “fuzz” production; sputtering due to impurities (high radiating plasmas), erosion. Recycling
Liquid metals: attractive (unaffected by disruption) but very limited experience
Remote HandlingFuel Cycle – Tritium self-sufficiency (TBR > 1.18)
EFDA WP for DEMO to be developed soon!!!
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
17th European Fusion Physics Workshop17th European Fusion Physics Workshop7th - 9th December 20097th - 9th December 2009
Sessions: Chairs:
Specifications for tungsten as plasma facing material V.Philips (FZJ)and as structural material
Status of W technologies M.Rieth (FZK)
Status on the scientific understanding of S.L. Dudarev (UKAEA)W and W-alloys material properties
W as a plasma facing component (PSI issues) R. Neu (IPP)
Development of integrated tokamak operating E. Joffrin (JET-EFDA)scenarios compatible with W PFCs
Use of Tungsten in fusion Use of Tungsten in fusion devicesdevices
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
HPC-FFHPC-FF
High Performance Computer for Fusion ApplicationsHigh Performance Computer for Fusion Applications
•Peak theoretical performance: ~ 100 TFlop/s Achieved efficiency - 89.5% (Linpack test)
• Operating since – 6 August 2009
•Located in the Jülich Supercomputing Centre
•1080 compute nodes: Bull NovaScale R422-E220 racks with 54 nodes each
•Processor: Intel Xeon X5570 (Nehalem-EP) quad-core, 2.93 GHz
•Memory: ~250 TB
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
HPC board
allocation of resources (CPU time and high level support) chooses HLST team members monitors operation and exploitation of facility annual work programme for STAC approval user representation, meetings ….
S. Günter (IPP; chair), N. Baluc (CRPP), X. Garbet (CEA), R. Giannella (EU), T. Hender (UKAEA), F. Iannone (ENEA), S. Potempski, P. Strand (Chalmers), R. Zagorski (EFDA; secretary), (K. Wolkersdorfer (FZJ))
Selected by EFDA SC ( 2 year mandate) with the following obligations:
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
Call for proposalsCall for proposals20092009
• End of 2008: call for proposals for the usage of HPC-FF in 2009End of 2008: call for proposals for the usage of HPC-FF in 2009
• 45 proposals received requesting a total of 53 MCPU hours (45 proposals received requesting a total of 53 MCPU hours (20 MCPU hours allocated for 20 MCPU hours allocated for projects)projects)
• Associations involved: CEA, Associations involved: CEA, VRVR, CRPP, Denmark, FZJ, IPP, Latvia, OAW, UKAEA, CRPP, Denmark, FZJ, IPP, Latvia, OAW, UKAEA
• Call still open …(Call still open …(new proposal from TEKESnew proposal from TEKES) )
• Proposals refereed by members of the HPC boardProposals refereed by members of the HPC board , criteria: , criteria: Relevance for Fusion HPC compatibility Scientific Excellence EU collaborations
85% CPU hours = 25 MCPU hours for projects10% HLST5% guaranteed access by associations
projects to be found on www.efda-hlst.eu
20201010•Call for proposals for the usage of HPC-FF in 2010
- Launched on 27th October -Deadline: 31st December 2009 (external referees)
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R.Zagórski, PWI Annual Meeting, 4-6 November 2009, Warsaw
High level support teamHigh level support team
Main aims:Main aims:
• • Parallelise and optimise codesParallelise and optimise codes
• • Improve the performance of existing codesImprove the performance of existing codes
• • Initiate the transfer of other codes to multiprocessors platformsInitiate the transfer of other codes to multiprocessors platforms
• • Make existing codes into community tools and merge codes if needed;Make existing codes into community tools and merge codes if needed;
• • Choose algorithms, mathematical library routine to adapt applications to the computer architectures Choose algorithms, mathematical library routine to adapt applications to the computer architectures
• • Train young scientists to the use of HPC systems Train young scientists to the use of HPC systems
• • Provide consultancy to existing HPC specialists in the Associations;Provide consultancy to existing HPC specialists in the Associations;
Composed of (12 members):Core Team (IPP) -5 members (5ppy) + 7 members (4 ppy) in other Associations
2008/2009•Call for participation in the HLST (reopened in June 2009)•Advertisement for Positions in the Core Team in Garching•Call for use of the HLST resources (5 (of 10) projects selected)2009/2010Call for proposals for the support from HLST in 2010 - Launched on 27th October -Deadline: 31st December 2009
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