Effects of Alpha Particle Transport Driven by Alfvénic Instabilities on Proposed Burning Plasma Scenarios on ITER
|
|
- Antony Henry
- 5 years ago
- Views:
Transcription
1 Effects of Alpha Particle Transport Driven by Alfvénic Instabilities on Proposed Burning Plasma Scenarios on ITER G. Vlad, S. Briguglio, G. Fogaccia, F. Zonca Associazione Euratom-ENEA sulla Fusione, C.R. Frascati - C.P I Frascati, Rome, Italy and M. Schneider Ass. Euratom-CEA, CEA/Cadarache, Saint Paul-lez-Durance, France G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 1
2 Introduction Next generation Tokamaks (e.g., ITER), should approach the so called ignition condition: heating due to fusion α-particles (hot particles) able to sustain the burning plasma Good confinement of the α-particles is crucial in getting such condition Fusion α-particles are generated with v Η v A =B/(4πn i m i ) 1/2 and peaked density profile free-energy source for the resonant destabilization of shear Alfvén modes (TAE, EPM, ) Interaction of such modes with energetic-particle can induce outward α-particle transport G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 2
3 Introduction-cont. Transport codes aimed to define burning-plasma scenarios do not include the possibility of Alfvén mode - α-particle interactions Are the proposed scenarios consistent with the α-particle collective dynamics? Which are the effects on α-particle profiles and confinement? Aim of our investigation: to check the consistency of several ITER scenarios by means of particle simulation techniques If α-particle pressure profile in presence of fully saturated modes is: close to initial one different from initial one scenario is consistent scenario could be inconsistent G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 3
4 The Model Hybrid MHD-Gyrokinetic Code (HMGC): thermal plasma described by zero pressure reduced O(ε 3 ) Magnetohydrodynamic (MHD) equations (circular shifted magnetic flux surfaces); energetic particles described by nonlinear guiding-center Vlasov equation (k ρ Η <<1) solved by particle-in-cell (PIC) techniques; energetic particles are loaded according to an isotropic slowingdown distribution function, with birth energy E fus =3.52 MeV and critical energy E crit 33.0 T e (r) (Stix); assume n D =n T =n i /2 and n i =n e. energetic particles and thermal plasma are coupled through the α particle pressure tensor, which enters the MHD momentum equation; mode-mode coupling neglected (only particle nonlinearities retained). G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 4
5 ITER scenarios Three different ITER scenarios have been considered: a) the reference monotonic-q scenario ( scenario 2, SC2, from ITER Joint Work Site): inductive, 15 MA scenario, with 400 MW fusion power and fusion yield Q=10; b) the reversed shear scenario ( scenario 4, SC4, from ITER Joint Work Site): steady-state, 9 MA, weak-negative shear, with about 300 MW fusion power and Q=5; q min 2.4 and r qmin /a c) a recently proposed hybrid scenario ( scenario H, SCH, from CRONOS package simulations): 11.3 MA weak-positive shear, with about 400 MW fusion power and Q 5. Simulations are performed retaining on-axis equilibrium magnetic field, major and minor radii, the safety-factor q, the plasma density n e, the electron temperature T e and the α-particle density n H. G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 5
6 Equilibrium profiles and parameters SC2 SC4 SCH a(m) R 0 (m) q B T (T) n e0 (10 20 m -3 ) T e0 (kev) n H0 (10 18 m -3 ) β H0 (%) α H,max = max{-r 0 q 2 β H} r α H,max /a G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 6
7 Linear dynamics: SC2 Several toroidal mode numbers n are found to be unstable. The mode is located around r α H,max /a in radius, and below the Alfvén continuum in frequency γ/ω A n= n=4 n= n H0 /n H0, SC G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 7
8 Linear dynamics: SC2-cont. Power spectra of scalar-potential fluctuations in the [r,ω] plane, during the linear phase. Upper and lower Alfvén continuous spectra are also plotted (black). n=2 n=4 n=6 G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 8
9 Linear dynamics: SC4 Toroidal mode number n=2 is found to be the most unstable. The mode is located close to r qmin /a radius, and close to the tip of the lower Alfvén continuum in frequency. A second weaker mode appear in the toroidal gap around r/a , for n= γ/ω A n= n=6 n= n H0 /n H0, SC4 G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 9
10 Linear dynamics: SC4-cont. Power spectra of scalar-potential fluctuations in the [r,ω] plane, during the linear phase. n=2 nominal n H value n=4 n H n H0, SC4 n=6 n H n H0, SC4 G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 10
11 Linear dynamics: SCH This scenario is stable at nominal n H0 =n H0, SCH value. At higher n H0 the mode appears close to the magnetic axis, for n=2; at r α H,max /a, where the local drive is maximum, for higher n. 0.2 γ/ω A n= n=6 n=4 n= n H0 /n H0, SCH G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 11
12 Linear dynamics: SCH-cont. Power spectra of scalar-potential fluctuations in the [r,ω] plane, during the linear phase. n=2 n=4 n=8 n H n H0, SCH n H n H0, SCH n H n H0, SCH G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 12
13 Linear Dynamics: localization Radius: the mode is localized where the local drive α H has its maximum Frequency: expected wave-particle resonances (ε<<1, small orbit width, well circulating/deeply trapped particles): ω = ωt l = 1 transit frequency: precession frequency: precession-bounce frequency: ω = ω d precession-bounce resonance seems to dominate (?). E fus 2m H 1 q(r)r 0 E fus m H R 0 ω ch nq(r) r ω = ω d + lω B,l = ±1 ω = ω d +ω B ω B 1 R 0 q(r) ω = ω d ω B SC2, n=2 SC2, n=4 SC2, n=6 E fus m H ( r ) 1/2 R 0 G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 13
14 Nonlinear dynamics: phenomenology Maximum gradient of rβ H shifts outward first steepening (convective phase, avalanche) then relaxing (diffusive phase: saturated e.m. fields scatter α-particles) rβ Η r max Linear phase r/a rβ H Convective phase r max r/a rβ H Diffusive phase r max r/a G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 14
15 Nonlinear dynamics: SC2, SC4 SC2 (n=4): scarcely affected by nonlinear saturation (mode localization close to linear-phase one); continuum damping barrier prevents the mode to displace outwards. at saturation SC4 (n=2): the mode is located around q min ; α particles have larger orbit width (higher q): larger convection and diffusion. G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 15
16 Nonlinear dynamics: SC2, SC4-cont. Define r y (t) as the radial position of the surface containing a fraction y of the α- particle energy: y = r y rβ H (r;t)dr rβ H,init (r)dr r 95% /a r 95% /a β H0 SC2, n=4 SC4, n=2 tω A β H0 tω A0 Time behavior of central α-particle beta, β H0 : tω A tω A0 G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 16
17 Nonlinear dynamics: SC2, SC4-cont. Increase artificially β H0 to investigate the dependence of convection and diffusion on intensity of energetic particle drive. SC2, n=4 SC4, n= r 95% /a r 95% /a 0.67 just-after-convection just-after-convection initial initial β H0 /β H0, SC2 β H0 /β H0, SC4 Characterize diffusion by: τ diff,95% r 95% [ r 95% / t] -1, τ diff,βh0 β H0 [ β H0 / t] (τ diff ω A0 ) -1 τ-1 diff, βη τ -1 diff, 95% β H0 /β H0, SC (τ diff ω A0 ) τ -1 diff, 95% τ -1 diff, βη β H0 /β H0, SC4 G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 17
18 Conclusions Standard ITER monotonic-q scenario (SC2): unstable w.r.t. α-particle driven Alfvén modes; nonlinear saturation produces negligible modifications to the α- particle radial profile: consistent scenario. Reversed shear scenario (SC4): unstable; appreciable changes to the α-particle radial profile: possibly inconsistent scenario. Hybrid scenario (SCH): stable (safety margin of 1.6 in the central α-particle pressure). Caveat: multiple toroidal-mode-number dynamics could enforce α transport; dynamic approach to the reference α-particle pressure could regulate the stronger energetic particle mode dynamics via nonlinear effects of weaker modes. G. Vlad et al., IT/P th IAEA Fusion Energy Conference (FEC 2004). 1-6/11/2004 Vilamoura, Portugal 18
MHD-particle simulations and collective alpha-particle transport: analysis of ITER scenarios and perspectives for integrated modelling
MHD-particle simulations and collective alpha-particle transport: analysis of ITER scenarios and perspectives for integrated modelling G. Vlad, S. Briguglio, G. Fogaccia, F. Zonca Associazione Euratom-ENEA
More informationAlpha Particle Transport Induced by Alfvénic Instabilities in Proposed Burning Plasma Scenarios
Alpha Particle Transport Induced by Alfvénic Instabilities in Proposed Burning Plasma Scenarios G. Vlad, S. Briguglio, G. Fogaccia and F. Zonca Associazione Euratom-ENEA sulla Fusione, C.R. Frascati C.P.
More informationL Aquila, Maggio 2002
Nonlinear saturation of Shear Alfvén Modes and energetic ion transports in Tokamak equilibria with hollow-q profiles G. Vlad, S. Briguglio, F. Zonca, G. Fogaccia Associazione Euratom-ENEA sulla Fusione,
More informationInteraction of fast particles and Alfvén modes in burning plasmas
Interaction of fast particles and Alfvén modes in burning plasmas G. Vlad, S. Briguglio, G. Fogaccia and F. Zonca Associazione EURATOM-ENEA, CR ENEA-Frascati, Via E. Fermi 45, 44 Frascati, (Rome) Italy
More informationNonlinear Simulation of Energetic Particle Modes in JT-60U
TH/P6-7 Nonlinear Simulation of Energetic Particle Modes in JT-6U A.Bierwage,N.Aiba 2, K.Shinohara 2, Y.Todo 3,W.Deng 4,M.Ishikawa 2,G.Matsunaga 2 and M. Yagi Japan Atomic Energy Agency (JAEA), Rokkasho,
More informationGlobal particle-in-cell simulations of Alfvénic modes
Global particle-in-cell simulations of Alfvénic modes A. Mishchenko, R. Hatzky and A. Könies Max-Planck-Institut für Plasmaphysik, EURATOM-Association, D-749 Greifswald, Germany Rechenzentrum der Max-Planck-Gesellschaft
More informationPredictions of fusion α-particle transport due to Alfvén eigenmodes in ITER
Predictions of fusion α-particle transport due to Alfvén eigenmodes in ITER M. Fitzgerald, S.E. Sharapov, P. Rodrigues 2, A. Polevoi 3, D. Borba 2 2 Instituto de Plasmas e Fusão Nuclear, Instituto Superior
More informationEnergetic-Ion-Driven MHD Instab. & Transport: Simulation Methods, V&V and Predictions
Energetic-Ion-Driven MHD Instab. & Transport: Simulation Methods, V&V and Predictions 7th APTWG Intl. Conference 5-8 June 2017 Nagoya Univ., Nagoya, Japan Andreas Bierwage, Yasushi Todo 14.1MeV 10 kev
More informationGlobal gyrokinetic modeling of geodesic acoustic modes and shear Alfvén instabilities in ASDEX Upgrade.
1 EX/P1-18 Global gyrokinetic modeling of geodesic acoustic modes and shear Alfvén instabilities in ASDEX Upgrade. A. Biancalani 1, A. Bottino 1, S. Briguglio 2, G.D. Conway 1, C. Di Troia 2, R. Kleiber
More informationSimulation Study of Interaction between Energetic Ions and Alfvén Eigenmodes in LHD
1 Simulation Study of Interaction between Energetic Ions and Alfvén Eigenmodes in LHD Y. Todo 1), N. Nakajima 1), M. Osakabe 1), S. Yamamoto 2), D. A. Spong 3) 1) National Institute for Fusion Science,
More informationExperimental Study of the Stability of Alfvén Eigenmodes on JET
IAEA FEC, Paper EX/P-7 Experimental Study of the Stability of Alfvén Eigenmodes on JET D.Testa,, A.Fasoli,, G.Fu 4, A.Jaun 3, D.Borba, P.de Vries 6, and JET-EFDA contributors [] Plasma Science and Fusion
More informationPresentation by Herb Berk University of Texas at Austin Institute for Fusion Studies in Vienna, Austria Sept. 1-4, 2015
Review of Theory Papers at 14 th IAEA technical meeting on Engertic Particles in Magnetic Confinement systems Presentation by Herb Berk University of Texas at Austin Institute for Fusion Studies in Vienna,
More informationLecture 5. Frequency sweeping, phase locking and supra-thermal particle transport:
IFTS Intensive Course on Advanced Plasma Physics-Spring 212 Lecture 5 1 Lecture 5 Frequency sweeping, phase locking and supra-thermal particle transport: heuristic models for understanding nonlinear behaviors
More informationMHD instabilities and fast particles
ENEA F. Zonca 1 MHD instabilities and fast particles Fulvio Zonca Associazione Euratom-ENEA sulla Fusione, C.R. Frascati, C.P. 65-44 - Frascati, Italy. July 11.th, 25 : Turbulence overshoot and resonant
More informationActive and Fast Particle Driven Alfvén Eigenmodes in Alcator C-Mod
Active and Fast Particle Driven Alfvén Eigenmodes in Alcator C-Mod JUST DID IT. J A Snipes, N Basse, C Boswell, E Edlund, A Fasoli #, N N Gorelenkov, R S Granetz, L Lin, Y Lin, R Parker, M Porkolab, J
More informationElectron Transport and Improved Confinement on Tore Supra
Electron Transport and Improved Confinement on Tore Supra G. T. Hoang, C. Bourdelle, X. Garbet, T. Aniel, G. Giruzzi, M. Ottaviani. Association EURATOM-CEA. CEA-Cadarache, 38, St Paul-lez-Durance, France
More informationNonlinear Energetic Particle Transport in the Presence of Multiple Alfvénic Waves in ITER
Nonlinear Energetic Particle Transport in the Presence of Multiple Alfvénic Waves in ITER Mirjam Schneller, Philipp Lauber, Sergio Briguglio, Antti Snicker Acknowledgement M. Schneller 1, Ph. Lauber 1,
More informationNonlinear magnetohydrodynamic effects on Alfvén eigenmode evolution and zonal flow
Home Search Collections Journals About Contact us My IOPscience Nonlinear magnetohydrodynamic effects on Alfvén eigenmode evolution and zonal flow generation This article has been downloaded from IOPscience.
More informationGyrokinetic Transport Driven by Energetic Particle Modes
Gyrokinetic Transport Driven by Energetic Particle Modes by Eric Bass (General Atomics) Collaborators: Ron Waltz, Ming Chu GSEP Workshop General Atomics August 10, 2009 Outline I. Background Alfvén (TAE/EPM)
More informationProgressing Performance Tokamak Core Physics. Marco Wischmeier Max-Planck-Institut für Plasmaphysik Garching marco.wischmeier at ipp.mpg.
Progressing Performance Tokamak Core Physics Marco Wischmeier Max-Planck-Institut für Plasmaphysik 85748 Garching marco.wischmeier at ipp.mpg.de Joint ICTP-IAEA College on Advanced Plasma Physics, Triest,
More informationNonlinear Energetic Particle Transport in the Presence of Multiple Alfvénic Waves in ITER. Mirjam Schneller
Nonlinear Energetic Particle Transport in the Presence of Multiple Alfvénic Waves in ITER Mirjam Schneller Acknowledgements Ph. Lauber 1, S. Briguglio 2, A. Snicker 3,1, X. Wang 1 1 Max-Planck-Institut
More informationStationary, High Bootstrap Fraction Plasmas in DIII-D Without Inductive Current Control
Stationary, High Bootstrap Fraction Plasmas in DIII-D Without Inductive Current Control P. A. Politzer, 1 A. W. Hyatt, 1 T. C. Luce, 1 F. W. Perkins, 4 R. Prater, 1 A. D. Turnbull, 1 D. P. Brennan, 5 J.
More information0 Magnetically Confined Plasma
0 Magnetically Confined Plasma 0.1 Particle Motion in Prescribed Fields The equation of motion for species s (= e, i) is written as d v ( s m s dt = q s E + vs B). The motion in a constant magnetic field
More informationBenchmark of gyrokinetic, kinetic MHD and gyrofluid codes for the linear calculation of fast particle driven TAE dynamics
ITR/P-34 Benchmark of gyrokinetic, kinetic MHD and gyrofluid codes for the linear calculation of fast particle driven TAE dynamics A.Könies,S.Briguglio 2,N.Gorelenkov 3,T.Fehér 4,M.Isaev 5,P.Lauber 4,A.Mishchenko,
More informationENERGETIC PARTICLES AND BURNING PLASMA PHYSICS
ENERGETIC PARTICLES AND BURNING PLASMA PHYSICS Reported by J. Van Dam Institute for Fusion Studies The University of Texas at Austin US-Japan JIFT Workshop on Theory-Based Modeling and Integrated Simulation
More informationEnergetic Particle Physics in Tokamak Burning Plasmas
Energetic Particle Physics in Tokamak Burning Plasmas presented by C. Z. (Frank) Cheng in collaboration with N. N. Gorelenkov, G. J. Kramer, R. Nazikian, E. Fredrickson, Princeton Plasma Physics Laboratory
More informationDirect drive by cyclotron heating can explain spontaneous rotation in tokamaks
Direct drive by cyclotron heating can explain spontaneous rotation in tokamaks J. W. Van Dam and L.-J. Zheng Institute for Fusion Studies University of Texas at Austin 12th US-EU Transport Task Force Annual
More informationVerification of gyrokinetic particle simulation of Alfven eigenmodes excited by external antenna and by fast ions
Verification of gyrokinetic particle simulation of Alfven eigenmodes excited by external antenna and by fast ions L. Chen 1,2, W. Deng 1, Z. Lin 1, D. Spong 3, G. Y. Sun 4, X. Wang 2,1, X. Q. Xu 5, H.
More informationShear Alfvén Wave Continuous Spectrum in the Presence of a Magnetic Island
1 TH/P3-5 Shear Alfvén Wave Continuous Spectrum in the Presence of a Magnetic Island A. Biancalani 1), L. Chen 2) 3), F. Pegoraro 1), F. Zonca 4), S. V. Annibaldi 5), A. Botrugno 4), P. Buratti 4) and
More informationNonperturbative Effects of Energetic Ions on Alfvén Eigenmodes
1 TH/3-1Ra Nonperturbative Effects of Energetic Ions on Alfvén Eigenmodes Y. Todo 1), N. Nakajima 1), K. Shinohara 2), M. Takechi 2), M. Ishikawa 2), S. Yamamoto 3) 1) National Institute for Fusion Science,
More informationCombined LH and ECH Experiments in the FTU Tokamak
Combined LH and ECH Experiments in the FTU Tokamak V. Pericoli Ridolfini, Y. Peysson 1, R. Dumont 1, G. Giruzzi 1, G. Granucci 2, L. Panaccione, L. Delpech 1, B. Tilia, FTU team, ECH team 2 Associazione
More informationFormation and Long Term Evolution of an Externally Driven Magnetic Island in Rotating Plasmas )
Formation and Long Term Evolution of an Externally Driven Magnetic Island in Rotating Plasmas ) Yasutomo ISHII and Andrei SMOLYAKOV 1) Japan Atomic Energy Agency, Ibaraki 311-0102, Japan 1) University
More informationObservation of modes at frequencies above the Alfvén frequency in JET
Observation of modes at frequencies above the Alfvén frequency in JET F. Nabais 1, D. Borba 1, R. Coelho 1, L. Fazendeiro 1, J. Ferreira 1, A. Figueiredo 1, L. Fitzgerald 2, P. Rodrigues 1, S. Sharapov
More informationTurbulent Transport Analysis of JET H-mode and Hybrid Plasmas using QuaLiKiz, TGLF and GLF23
EFDA JET CP(1)/ B. Baiocchi, J. Garcia, M. Beurkens, C. Bourdelle, F. Crisanti, C. Giroud, J. Hobirk, F. Imbeaux, I. Nunes, EU-ITM ITER Scenario Modelling group and JET EFDA contributors Turbulent Transport
More informationSpectroscopic determination of the internal amplitude of frequency sweeping TAE
INSTITUTE OF PHYSICS PUBLISHING Plasma Phys. Control. Fusion 46 (2004) S47 S57 PLASMA PHYSICS AND CONTROLLED FUSION PII: S0741-3335(04)72680-9 Spectroscopic determination of the internal amplitude of frequency
More informationJoint ITER-IAEA-ICTP Advanced Workshop on Fusion and Plasma Physics October Introduction to Fusion Leading to ITER
2267-1 Joint ITER-IAEA-ICTP Advanced Workshop on Fusion and Plasma Physics 3-14 October 2011 Introduction to Fusion Leading to ITER SNIPES Joseph Allan Directorate for Plasma Operation Plasma Operations
More informationInteraction between EGAMs and turbulence in full-f gyrokinetic simulations
Interaction between EGAMs and turbulence in full-f gyrokinetic simulations David Zarzoso 1 X Garbet 1, Y Sarazin 1, V Grandgirard 1, J Abiteboul 1, A Strugarek 1,2, G Dif-Pradalier 1, R Dumont 1, G Latu
More informationCurrent density modelling in JET and JT-60U identity plasma experiments. Paula Sirén
Current density modelling in JET and JT-60U identity plasma experiments Paula Sirén 1/12 1/16 Euratom-TEKES Euratom-Tekes Annual Seminar 2013 28 24 May 2013 Paula Sirén Current density modelling in JET
More informationThe RFP: Plasma Confinement with a Reversed Twist
The RFP: Plasma Confinement with a Reversed Twist JOHN SARFF Department of Physics University of Wisconsin-Madison Invited Tutorial 1997 Meeting APS DPP Pittsburgh Nov. 19, 1997 A tutorial on the Reversed
More informationHybrid Kinetic-MHD simulations Status and Updates
in NIMROD simulations Status and Updates Charlson C. Kim 1,2 Yasushi Todo 2 and the NIMROD Team 1. University of Washington, Seattle 2. National Institute for Fusion Science NIMROD Team Meeting Austin,
More informationAdvanced Tokamak Research in JT-60U and JT-60SA
I-07 Advanced Tokamak Research in and JT-60SA A. Isayama for the JT-60 team 18th International Toki Conference (ITC18) December 9-12, 2008 Ceratopia Toki, Toki Gifu JAPAN Contents Advanced tokamak development
More informationIntroduction to Fusion Physics
Introduction to Fusion Physics Hartmut Zohm Max-Planck-Institut für Plasmaphysik 85748 Garching DPG Advanced Physics School The Physics of ITER Bad Honnef, 22.09.2014 Energy from nuclear fusion Reduction
More informationINTRODUCTION TO BURNING PLASMA PHYSICS
INTRODUCTION TO BURNING PLASMA PHYSICS Gerald A. Navratil Columbia University American Physical Society - Division of Plasma Physics 2001 Annual Meeting, Long Beach, CA 1 November 2001 THANKS TO MANY PEOPLE
More informationImproved Plasma Confinement by Ion Bernstein Waves (IBWs) Interacting with Ions in JET (Joint European Torus)
Improved Plasma Confinement by Ion Bernstein Waves (IBWs) Interacting with Ions in JET (Joint European Torus) PD/P-01 C. Castaldo 1), R. Cesario 1), Y, Andrew 2), A. Cardinali 1), V. Kiptly 2), M. Mantsinen
More informationITER operation. Ben Dudson. 14 th March Department of Physics, University of York, Heslington, York YO10 5DD, UK
ITER operation Ben Dudson Department of Physics, University of York, Heslington, York YO10 5DD, UK 14 th March 2014 Ben Dudson Magnetic Confinement Fusion (1 of 18) ITER Some key statistics for ITER are:
More informationTransport Improvement Near Low Order Rational q Surfaces in DIII D
Transport Improvement Near Low Order Rational q Surfaces in DIII D M.E. Austin 1 With K.H. Burrell 2, R.E. Waltz 2, K.W. Gentle 1, E.J. Doyle 8, P. Gohil 2, C.M. Greenfield 2, R.J. Groebner 2, W.W. Heidbrink
More informationGTC Simulation of Turbulence and Transport in Tokamak Plasmas
GTC Simulation of Turbulence and Transport in Tokamak Plasmas Z. Lin University it of California, i Irvine, CA 92697, USA and GPS-TTBP Team Supported by SciDAC GPS-TTBP, GSEP & CPES Motivation First-principles
More informationTURBULENT TRANSPORT THEORY
ASDEX Upgrade Max-Planck-Institut für Plasmaphysik TURBULENT TRANSPORT THEORY C. Angioni GYRO, J. Candy and R.E. Waltz, GA The problem of Transport Transport is the physics subject which studies the physical
More informationStudy of chirping Toroidicity-induced Alfvén Eigenmodes in the National Spherical Torus Experiment
Study of chirping Toroidicity-induced Alfvén Eigenmodes in the National Spherical Torus Experiment M. Podestà 1, R. E. Bell 1, A. Bortolon 2, N. A. Crocker 3, D. S. Darrow 1, E. D. Fredrickson 1, G.-Y.
More informationStudies on Neutral Beam Ion Confinement and MHD Induced Fast-Ion. Loss on HL-2A Tokamak
Studies on Neutral Beam Ion Confinement and MHD Induced Fast-Ion Loss on HL-A Tokamak LIU Yi, ISOBE Mitsutaka, PENG Xiao-Dong, Wang Hao, JI Xiao-Quan, CHEN Wei, ZHANG Yi-Po, Dong Yun-Bo, MORITA Shigeru
More informationActive Control of Alfvén Eigenmodes in the ASDEX Upgrade tokamak
Active Control of Alfvén Eigenmodes in the ASDEX Upgrade tokamak M. Garcia-Munoz, S. E. Sharapov, J. Ayllon, B. Bobkov, L. Chen, R. Coelho, M. Dunne, J. Ferreira, A. Figueiredo, M. Fitzgerald, J. Galdon-Quiroga,
More informationStability Properties of Toroidal Alfvén Modes Driven. N. N. Gorelenkov, S. Bernabei, C. Z. Cheng, K. Hill, R. Nazikian, S. Kaye
Stability Properties of Toroidal Alfvén Modes Driven by Fast Particles Λ N. N. Gorelenkov, S. Bernabei, C. Z. Cheng, K. Hill, R. Nazikian, S. Kaye Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton,
More informationGlobal particle-in-cell simulations of Alfvénic modes
Max-Planck-Intitut für Plamaphyik, EURATOM Aociation WENDELSTEIN 7-X Global particle-in-cell imulation of Alfvénic mode Alexey Mihchenko, Axel Könie, Roman Hatzky Keyword: gyrokinetic, global particle-in-cell,
More informationNonlinear hydrid simulations of precessional Fishbone instability
Nonlinear hydrid simulations of precessional Fishbone instability M. Faganello 1, M. Idouakass 1, H. L. Berk 2, X. Garbet 3, S. Benkadda 1 1 Aix-Marseille University, CNRS, PIIM UMR 7345, Marseille, France
More informationNonlinear Evolution and Radial Propagation of the Energetic Particle Driven GAM
Nonlinear Evolution and Radial Propagation of the Energetic Particle Driven GAM by R. Nazikian In collaboration with G.Y. Fu, R.V. Budny, G.J. Kramer, PPPL G.R. McKee, U. Wisconsin T. Rhodes, L. Schmidt,
More informationEffects of fast ion phase space modifications by instabilities on fast ion modeling
Effects of fast ion phase space modifications by instabilities on fast ion modeling M. Podestà, M. Gorelenkova, E. Fredrickson, N. Gorelenkov, R. White PPPL, Princeton USA Acknowledgements: NSTX-U and
More informationFAST 1 : a Physics and Technology Experiment on the Fusion Road Map
Fusion Advanced Studies Torus FAST 1 : a Physics and Technology Experiment on the Fusion Road Map Presented by A. A. Tuccillo on behalf of ENEA-Euratom Association Univ. of Rome Tor Vergata Univ. of Catania
More informationCalculation of alpha particle redistribution in sawteeth using experimentally reconstructed displacement eigenfunctions
Calculation of alpha particle redistribution in sawteeth using experimentally reconstructed displacement eigenfunctions R. Farengo, H. E. Ferrari,2, M.-C. Firpo 3, P. L. Garcia-Martinez 2,3, A. F. Lifschitz
More informationObservation of Neo-Classical Ion Pinch in the Electric Tokamak*
1 EX/P6-29 Observation of Neo-Classical Ion Pinch in the Electric Tokamak* R. J. Taylor, T. A. Carter, J.-L. Gauvreau, P.-A. Gourdain, A. Grossman, D. J. LaFonteese, D. C. Pace, L. W. Schmitz, A. E. White,
More informationAnalysis and modelling of MHD instabilities in DIII-D plasmas for the ITER mission
Analysis and modelling of MHD instabilities in DIII-D plasmas for the ITER mission by F. Turco 1 with J.M. Hanson 1, A.D. Turnbull 2, G.A. Navratil 1, C. Paz-Soldan 2, F. Carpanese 3, C.C. Petty 2, T.C.
More informationHybrid Kinetic-MHD simulations with NIMROD
simulations with NIMROD 1 Yasushi Todo 2, Dylan P. Brennan 3, Kwang-Il You 4, Jae-Chun Seol 4 and the NIMROD Team 1 University of Washington, Seattle 2 NIFS, Toki-Japan 3 University of Tulsa 4 NFRI, Daejeon-Korea
More informationEX8/3 22nd IAEA Fusion Energy Conference Geneva
P.C. de Vries JET-EFDA Culham Science Centre Abingdon OX14 3DB UK EX8/3 22nd IAEA Fusion Energy Conference Geneva P.C. de Vries1, E. Joffrin2,3, M. Brix1, C.D. Challis1, K. Crombé4, B. Esposito5, N.C.
More informationObservation of Co- and Counter Rotation Produced by Lower Hybrid Waves in Alcator C-Mod*
Observation of Co- and Counter Rotation Produced by Lower Hybrid Waves in Alcator C-Mod* R. R. Parker, Y. Podpaly, J. Lee, M. L. Reinke, J. E. Rice, P.T. Bonoli, O. Meneghini, S. Shiraiwa, G. M. Wallace,
More informationNumKin, Strasbourg, October 17 th, 2016
F. Palermo 1 A.Biancalani 1, C.Angioni 1, F.Zonca 2, A.Bottino 1, B.Scott 1, G.D.Conway 1, E.Poli 1 1 Max Planck Institut für Plasmaphysik, Garching, Germany 2 ENEA C. R. Frascati - Via E. Fermi 45, CP
More informationNonlinear Consequences of Weakly Driven Energetic Particle Instabilities
2008 International Sherwood Fusion Theory Conference March 30 - April 2, 2008, Boulder, Colorado Nonlinear Consequences of Weakly Driven Energetic Particle Instabilities Boris Breizman Institute for Fusion
More informationAnalysis of ICRF heating and ICRF-driven fast ions in recent JET experiments
Analysis of ICRF heating and ICRF-driven fast ions in recent JET experiments M.J. Mantsinen,,a, C. Challis 3, J. Eriksson, L.-G. Eriksson 5, D. Frigione 6, D. Gallart, J. Garcia 7, C. Giroud 3, T. Hellsten
More informationTheory of Alfvén waves and energetic particle physics in burning plasmas
1 OV/5-3 Theory of Alfvén waves and energetic particle physics in burning plasmas L. Chen 1)-2) and F. Zonca 3) 1) Dept. of Physics and Astronomy, Univ. of California, Irvine CA 92697-4575, U.S.A. 2) Institute
More informationImpact of Energetic-Ion-Driven Global Modes on Toroidal Plasma Confinements
Impact of Energetic-Ion-Driven Global Modes on Toroidal Plasma Confinements Kazuo TOI CHS & LHD Experimental Group National Institute for Fusion Science Toki 59-5292, Japan Special contributions from:
More informationHybrid Kinetic-MHD simulations with NIMROD
in NIMROD simulations with NIMROD Charlson C. Kim 1 Dylan P. Brennan 2 Yasushi Todo 3 and the NIMROD Team 1 University of Washington, Seattle 2 University of Tulsa 3 NIFS, Toki-Japan December 2&3, 2011
More informationImpact of Localized ECRH on NBI and ICRH Driven Alfven Eigenmodes in the ASDEX Upgrade Tokamak
Impact of Localized ECRH on NBI and ICRH Driven Alfven Eigenmodes in the ASDEX Upgrade Tokamak M. Garcia-Munoz M. A. Van Zeeland, S. Sharapov, Ph. Lauber, J. Ayllon, I. Classen, G. Conway, J. Ferreira,
More informationMHD. Jeff Freidberg MIT
MHD Jeff Freidberg MIT 1 What is MHD MHD stands for magnetohydrodynamics MHD is a simple, self-consistent fluid description of a fusion plasma Its main application involves the macroscopic equilibrium
More informationImproved Plasma Confinement by Ion Bernstein Waves (IBWs) Interacting with Ions in JET
EFDA JET CP(02)07/03 C. Castaldo, R. Cesario, Y, Andrew, A. Cardinali, V. Kiptly, M. Mantsinen, F. Meo, A. Murari, A. A. Tuccillo, M. Valisa, D. Van Eester, L. Bertalot, D. Bettella, C. Giroud, C. Ingesson,
More informationTurbulence and Transport The Secrets of Magnetic Confinement
Turbulence and Transport The Secrets of Magnetic Confinement Presented by Martin Greenwald MIT Plasma Science & Fusion Center IAP January 2005 FUSION REACTIONS POWER THE STARS AND PRODUCE THE ELEMENTS
More informationComparative Transport Analysis of JET and JT-60U Discharges
EFDA JET CP(1)/13 J. Garcia, N. Hayashi, G. Giruzzi, M. Schneider, E. Joffrin, S. Ide, Y. Sakamoto, T. Suzuki, H. Urano, the JT-U Team and JET EFDA contributors Comparative Transport Analysis of JET and
More informationINTRODUCTION TO MAGNETIC NUCLEAR FUSION
INTRODUCTION TO MAGNETIC NUCLEAR FUSION S.E. Sharapov Euratom/CCFE Fusion Association, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB, UK With acknowledgments to B.Alper for use of his transparencies
More informationProgress and Plans on Physics and Validation
Progress and Plans on Physics and Validation T.S. Hahm Princeton Plasma Physics Laboratory Princeton, New Jersey Momentum Transport Studies: Turbulence and Neoclassical Physics Role of Trapped Electrons
More informationStabilization of sawteeth in tokamaks with toroidal flows
PHYSICS OF PLASMAS VOLUME 9, NUMBER 7 JULY 2002 Stabilization of sawteeth in tokamaks with toroidal flows Robert G. Kleva and Parvez N. Guzdar Institute for Plasma Research, University of Maryland, College
More informationSimulation of alpha particle current drive and heating in spherical tokamaks
Simulation of alpha particle current drive and heating in spherical tokamaks R. Farengo 1, M. Zarco 1, H. E. Ferrari 1, 1 Centro Atómico Bariloche and Instituto Balseiro, Argentina. Consejo Nacional de
More informationBounce-averaged gyrokinetic simulations of trapped electron turbulence in elongated tokamak plasmas
Bounce-averaged gyrokinetic simulations of trapped electron turbulence in elongated tokamak plasmas Lei Qi a, Jaemin Kwon a, T. S. Hahm a,b and Sumin Yi a a National Fusion Research Institute (NFRI), Daejeon,
More informationUnderstanding physics issues of relevance to ITER
Understanding physics issues of relevance to ITER presented by P. Mantica IFP-CNR, Euratom/ENEA-CNR Association, Milano, Italy on behalf of contributors to the EFDA-JET Work Programme Brief summary of
More informationCharacteristics of Internal Transport Barrier in JT-60U Reversed Shear Plasmas
Characteristics of Internal Transport Barrier in JT-6U Reversed Shear Plasmas Y. Sakamoto, Y. Kamada, S. Ide, T. Fujita, H. Shirai, T. Takizuka, Y. Koide, T. Fukuda, T. Oikawa, T. Suzuki, K. Shinohara,
More informationSize Scaling and Nondiffusive Features of Electron Heat Transport in Multi-Scale Turbulence
Size Scaling and Nondiffusive Features of Electron Heat Transport in Multi-Scale Turbulence Z. Lin 1, Y. Xiao 1, W. J. Deng 1, I. Holod 1, C. Kamath, S. Klasky 3, Z. X. Wang 1, and H. S. Zhang 4,1 1 University
More informationTRANSPORT PROGRAM C-MOD 5 YEAR REVIEW MAY, 2003 PRESENTED BY MARTIN GREENWALD MIT PLASMA SCIENCE & FUSION CENTER
TRANSPORT PROGRAM C-Mod C-MOD 5 YEAR REVIEW MAY, 2003 PRESENTED BY MARTIN GREENWALD MIT PLASMA SCIENCE & FUSION CENTER C-MOD - OPPORTUNITIES AND CHALLENGES Prediction and control are the ultimate goals
More informationITER PHYSICS BASIS CHAPTER 5 PHYSICS OF ENERGETIC IONS TABLE OF CONTENTS
ITER PHYSICS BASIS CHAPTER 5 PHYSICS OF ENERGETIC IONS TABLE OF CONTENTS CHAPTER 5: PHYSICS OF ENERGETIC IONS...1 5.1. INTRODUCTION...2 5.2. CLASSICAL PHYSICS OF ENERGETIC PARTICLE CONFINEMENT AND PLASMA
More informationIntegrated Modelling of ITER Scenarios with ECCD
Integrated Modelling of ITER Scenarios with ECCD J.F. Artaud, V. Basiuk, J. Garcia, G. Giruzzi*, F. Imbeaux, M. Schneider Association Euratom-CEA sur la Fusion, CEA/DSM/DRFC, CEA/Cadarache, 13108 St. Paul-lez-Durance,
More informationEnergetic particle and Alfvén wave physics in fusion plasmas: a brief review
Symposium on Plasma Theory: A Celebration of Professor Liu Chen s 40 Years of Scientific Accomplishments 1 Energetic particle and Alfvén wave physics in fusion plasmas: a brief review Fulvio Zonca http://www.afs.enea.it/zonca
More informationStructures of the low frequency Alfvén continuous spectrum and their consequences on MHD and micro-turbulence
ENEA Structures of the low frequency Alfvén continuous spectrum 1 Structures of the low frequency Alfvén continuous spectrum and their consequences on MHD and micro-turbulence Associazione Euratom-ENEA
More informationThe Linear Theory of Tearing Modes in periodic, cyindrical plasmas. Cary Forest University of Wisconsin
The Linear Theory of Tearing Modes in periodic, cyindrical plasmas Cary Forest University of Wisconsin 1 Resistive MHD E + v B = ηj (no energy principle) Role of resistivity No frozen flux, B can tear
More informationGA A23713 RECENT ECCD EXPERIMENTAL STUDIES ON DIII D
GA A271 RECENT ECCD EXPERIMENTAL STUDIES ON DIII D by C.C. PETTY, J.S. degrassie, R.W. HARVEY, Y.R. LIN-LIU, J.M. LOHR, T.C. LUCE, M.A. MAKOWSKI, Y.A. OMELCHENKO, and R. PRATER AUGUST 2001 DISCLAIMER This
More informationNon-ohmic ignition scenarios in Ignitor
Non-ohmic ignition scenarios in Ignitor Augusta Airoldi IFP, EURATOM-ENEA-CNR Association, Milano, Italy Francesca Bombarda, Giovanna Cenacchi Ignitor Group, ENEA, Italy Bruno Coppi MIT, USA DPP1 APS Meeting
More informationExcitation of Alfvén eigenmodes with sub-alfvénic neutral beam ions in JET and DIII-D plasmas
Excitation of Alfvén eigenmodes with sub-alfvénic neutral beam ions in JET and DIII-D plasmas D. Borba 1,9, R. Nazikian 2, B. Alper 3, H.L. Berk 4, A. Boboc 3, R.V. Budny 2, K.H. Burrell 5, M. De Baar
More informationProgress in Transport Modelling of Internal Transport Barrier Plasmas in JET
Progress in Transport Modelling of Internal Transport Barrier Plasmas in JET T. Tala 1, C. Bourdelle, F. Imbeaux, D. Moreau, V. Parail, G. Corrigan, F. Crisanti, X. Garbet, D. Heading, E. Joffrin, L. Laborde,
More informationRELATIVISTIC EFFECTS IN ELECTRON CYCLOTRON RESONANCE HEATING AND CURRENT DRIVE
RELATIVISTIC EFFECTS IN ELECTRON CYCLOTRON RESONANCE HEATING AND CURRENT DRIVE Abhay K. Ram Plasma Science and Fusion Center Massachusetts Institute of Technology Cambridge, MA 02139. U.S.A. Joan Decker
More informationIssues in Neoclassical Tearing Mode Theory
Issues in Neoclassical Tearing Mode Theory Richard Fitzpatrick Institute for Fusion Studies University of Texas at Austin Austin, TX Tearing Mode Stability in Tokamaks According to standard (single-fluid)
More informationCharacteristics of Energetic-Ion-Driven Geodesic Acoustic Modes in the Large Helical Device(LHD)
O-4 12 th IAEA TM on Energetic Particles in Magnetic Confinement Systems, 7-10 Sep, Austin, USA Characteristics of Energetic-Ion-Driven Geodesic Acoustic Modes in the Large Helical Device(LHD) K. Toi,
More informationFluid equations, magnetohydrodynamics
Fluid equations, magnetohydrodynamics Multi-fluid theory Equation of state Single-fluid theory Generalised Ohm s law Magnetic tension and plasma beta Stationarity and equilibria Validity of magnetohydrodynamics
More informationNeoclassical transport
Neoclassical transport Dr Ben Dudson Department of Physics, University of York Heslington, York YO10 5DD, UK 28 th January 2013 Dr Ben Dudson Magnetic Confinement Fusion (1 of 19) Last time Toroidal devices
More informationOn the physics of shear flows in 3D geometry
On the physics of shear flows in 3D geometry C. Hidalgo and M.A. Pedrosa Laboratorio Nacional de Fusión, EURATOM-CIEMAT, Madrid, Spain Recent experiments have shown the importance of multi-scale (long-range)
More informationSTUDY OF ADVANCED TOKAMAK PERFORMANCE USING THE INTERNATIONAL TOKAMAK PHYSICS ACTIVITY DATABASE
INTERNATIONAL ATOMIC ENERGY AGENCY 20th IAEA Fusion Energy Conference Vilamoura, Portugal, 1-6 November 2004 IAEA-CN-116/ STUDY OF ADVANCED TOKAMAK PERFORMANCE USING THE INTERNATIONAL TOKAMAK PHYSICS ACTIVITY
More informationThe Physics of Collisionless Accretion Flows. Eliot Quataert (UC Berkeley)
The Physics of Collisionless Accretion Flows Eliot Quataert (UC Berkeley) Accretion Disks: Physical Picture Simple Consequences of Mass, Momentum, & Energy Conservation Matter Inspirals on Approximately
More information