MHD Induced Fast-Ion Losses in ASDEX Upgrade

Size: px
Start display at page:

Download "MHD Induced Fast-Ion Losses in ASDEX Upgrade"

Transcription

1 Max-Planck-Insititut für Plasmaphysik MHD Induced Fast-Ion Losses in ASDEX Upgrade Manuel García-Muñoz1 H.-U. Fahrbach1, M. Bruedgam1, V. Bobkov1, A. Flaws1, M. Gobbin2, S. Günter1, P. Lauber1, M. Mantsinen1,4, P. Martin2, M.Maraschek1, S.-D. Pinches5, P. Piovesan2, E. Poli1, V. Igochine1, L. Marrelli2, M. Reich1, V. Rohde1, K. Sassenberg1,3, A. Staebler1, E. Strumberger1, H. Zohm1 and the ASDEX Upgrade Team (1) Max-Planck-Institut für Plasmaphysik, Association Euratom, Boltzmannstrasse 2, Garching bei München, Germany (2) Consorzio RFX Associazione Euratom-Enea sulla fusione, Padova, Italy (3) Department of Physics, University College Cork, Euratom-DCU Association, Cork, Ireland (4) Helsinki Univ. of Technology, Association Euratom-Tekes, P.O.Box 4100, FIN HUT, Finland (5) Euratom/UKAEA Fusion Association, Culham Science Centre, Abingdon, OX14 3DB, UK 1

2 Detector principle: Energy and pitch angle resolution Scintillator detector design based on: - TFTR: S. J. Zweben, Nucl. Fusion 29, 825 (1989) - CHS: M. Isobe, Rev. Sci. Instrum. 70, 827 (1999) - W7-AS: A. Werner, Rev. Sci. Instrum. 72, 780 (2001) - JET: S. Bäumel, Rev. Sci. Instrum. 75, 3563 (2004) - LHD: M. Nishiura, Rev. Sci. Instrum. 75, 3646 (2004) M. Garcia-Munoz et al, Rev. Sci. Instrum. (2008) submitted fast ions vtot = v + v// The strike points of the ions on the scintillator plate depend on their gyroradius and pitch angle (~magnetic spectrometer) 2

3 Fast-ion losses due to NTMs; NBI ions Typical FIL pattern in pure NBI-heated discharges with NTM activity (2,1) NTM contribution to fast-ion losses: Enhacement of the NBI prompt loss patterns Fast-ion losses in a phase-space area corresponding to passing orbits Garcia-Munoz, M. et al Nucl. Fusion 47 (2007) L10-L15 3

4 NBI modulated experiments to study fast-ion loss time scales Correlation between FIL, (2,1) magnetic perturbation and NBI source modulation magnetics Fast ion losses 4

5 NBI modulated experiments to study fast-ion loss time scales magnetics Fast ion losses 5

6 NBI modulated experiments to study fast-ion loss time scales magnetics Fast ion losses Amplitude of dominant frequency Amplitude of dominant frequency 6

7 Fast-ion loss mechanisms; time scales Modelling results in good agreement with measurements S. Guenter, TH/P9-10 Fast-ion loss signal on passing orbits decay within μs Fast-ion loss signal on trapped orbits decay within ms Strumberger, E. et al New J. Phys (2008) 7

8 Fast-ion loss mechanisms; time scales Modelling results in good agreement with measurements S. Guenter, TH/P9-10 t = 10 ms t = 10 µs t = 6-8 µs Strumberger, E. et al New J. Phys (2008) 8

9 Fast-ion losses due to NTMs; ICRF ions (3,2) NTM induces ICRF fast-ion losses in improve H-mode discharges E. Poli et al, Phys. Plasmas (2008) Loss pattern shows NBI prompt losses and ICRF lost ions due to NTM NTM losses appear in the trapped domain arccos(v /v) = Gyroradius 50 mm corresponding to hydrogen ions with E = 600 kev 9

10 NTM magnetic fluctuation and FIL correlation Clear correlation in frequency, phase and amplitude Maximum losses appear between O-point and X-point of magnetic island Signal decay at constant island width 10

11 NTM magnetic fluctuation and FIL correlation Clear correlation in frequency, phase and amplitude Maximum losses appear between O-point and X-point of magnetic island Signal decay at constant island width t 11

12 NTM magnetic fluctuation and FIL correlation Clear correlation in frequency, phase and amplitude Maximum losses appear between O-point and X-point of magnetic island Signal decay at constant island width t 12

13 Fast-Ion Losses due to Fast-Ion Driven MHD Instabilities On ASDEX Upgrade: ne (1019 m-3) ICRH ICRF heated discharges Multiple fast-ion driven MHD #21083 Magnetic Spectrogram P (MW) n=7 instabilities observed using magnetic pick-up coils n=3 TAEs A new core localised nonalfvenic instability Sierpes mode has been identified by SXR diagnostic Fishbones Soft X-Ray Spectrogram Core Channel #21083 Including background diamagnetic effects, a rasonable agreement has been found between fsierpes and fbae when the FI pressure is not too large (i.e. rapid f-rise before sawtooth crash or f-chirping) (4,4) (1,1) & (2,2) Garcia-Munoz, M. et al. PRL 100 (2008) 13

14 Observation of ICRH Fast Ion Losses due to Fast Ion Driven MHD Instabilities Selective character of the loss mechanisms; ICRH tail ions lost with two different energies (Ip=1.2 MA, Bt=2T) García-Muñoz, M. et al. PRL 100 (2008) n=7 TAEs n=3 CCD view: Fast ion loss pattern in phase-space Time (s) n=7 TAEs 1.5 n=3 Gyroradii corresponding to hydrogen ions with E = 300 kev and E = kev Correlation in frequency and phase with fast-ion driven MHD fluctuations (TAEs and Sierpes) Sierpes Fishbones Time (s) TAE FILD 14

15 Fast-ion loss rates due to TAEs and Sierpes Analysis of the fast-ion loss evolution tracking the Sierpes and TAE frequencies FILD Spectrogram n=4 n=5 n=6 Sierpes The Sierpes mode always seems to be more effective ejecting ions than the individual TAEs A correlation between the spikes of the fast-ion losses due to Sierpes and TAEs suggests a coupling between fast-ion loss mechanisms 15

16 Loss mechanisms coupling; particle channeling TAEs and Sierpes radial eigenfunction reconstructed with the MHD-IC code and their SXR emissions (n=4,m=4) Sierpes a.u. (n=4,m=4,5) TAE rhopol Garcia-Munoz, M. et al. PRL 100 (2008) 16

17 Loss mechanisms coupling; particle channeling TAEs and Sierpes radial eigenfunction reconstructed by the MHDIC code and their SXR emissions Fast ions pressure profile calculated by the PION code reveals high local FI pressure and gradients at the Sierpes and TAE locations (n=4,m=4) Sierpes a.u. (n=4,m=4,5) TAE The radial chain of FI driven MHD fluctuations may explain the higher FI transport towards the vessel wall A transient overlapping of the Sierpes and TAE eigenfunction may enhance drastically the FILs rhopol Garcia-Munoz, M. et al. PRL 100 (2008) Internal MHD fluctuations must be taken into account in order to reproduce quantitatively the FI transport due to FI driven MHD instabilities 17

18 TAE and Sierpes loss mechanisms; numerical simulations Initial FI distribution function for HAGIS based on results obtained by the ICRH modeling codes PION and FIDO #21083 AUG Equilibrium Central localization of the maximum fast ion pressure within rho~0.25. E < 10% Etot, ßfast ~ 25% ßtot Orbit properties investigated using HAGIS code. On-axis ICRF minority heating Distribution function described by Λ= μb0/e=1 & fw ~ exp (-E/T) Trapped orbits with turning points at ICRH resonance layer (vll = 0 at magnetic axis): Pφ = mr vll - eψp z0 ψp = - Pφ ωφ (0,250) ωθ (0,500) khz with E up to 1.6 MeV M. García-Muñoz et al., IAEA TM EP (2007) M. J. Mantsinen et al., RF Topical (2007) 18

19 Resonant ICRH ions General resonance condition: Ω np = n ωφ - p ωθ - ω MHD Linear simulation without considering MHD perturbation amplitude An energy/canonical momentum exchange takes place if the resonance conditions are fulfilled by the typical fast-ion orbital and wave frequencies A quantitative analysis of the losses required non-linear simulations of the interplay evolution between fast-ions and eigenmodes 19

20 Resonant ICRH ions General resonance condition: Ω np = n ωφ - p ωθ - ω MHD Log (1/Ωnp) Sierpes mode n=4 Linear simulation without considering MHD perturbation amplitude An energy/canonical momentum exchange takes place if the resonance conditions are fulfilled by the typical fast-ion orbital and wave frequencies A quantitative analysis of the losses required non-linear simulations of the interplay evolution between fast-ions and eigenmodes 20

21 Resonant ICRH ions General resonance condition: Ω np = n ωφ - p ωθ - ω MHD Log (1/Ωnp) TAE n=5 Log (1/Ωnp) Sierpes mode n=4 21

22 Resonant ICRH ions General resonance condition: Ω np = n ωφ - p ωθ - ω MHD Log (1/Ωnp) TAE n=4 Log (1/Ωnp) TAE n=5 Log (1/Ωnp) Sierpes mode n=4 A fast-ion channeling in phase space might be being the responsible for the coupling between TAE and Sierpes loss mechanisms An overlapping of resonance conditions (i.e. p=1) might increase strongly the fast-ion loss fluxes 22

23 Summary Observations Numerical simulations NBI well confined passing ion losses due to NTMs Loss mechanism identified. Drift islands NBI trapped ion losses due to NTMs Orbit stochasticity ICRH trapped ion losses due to (3,2) NTMs Resonance condition and loss mechanism identified with HAGIS ICRH trapped ion losses due to fast-ion driven MHD instabilities Resonance condition identified with HAGIS. Fast-ion channeling in phase-space? A new core-localised nonalfvénic MHD perturbation, Sierpes Mode. It dominates the FI transport in ICRH discharges BAE/KBM? Work in progress 23

24 Backp Up Slides 24

25 Sierpes mode nature At moderate fast-ion pressures, Sierpes mode follows BAE dispersion relation Hybrid mode. Coupling with the Kinetic Ballooning Branch explains also the frequency rise 25

26 Summary II Observation and modeling of: W=const. ~ v =E xb/b v = v x δb /B Trapped μ B0 W LOST Counterpassing Co-passing ~ Ψ ~ Pφ 1) NBI well confined passing ion losses due to NTMs. Drift Islands 2) ICRH trapped ion losses due to NTMs and TAEs. Phase matching. Convective mechanism. (~δbr) 3) NBI trapped ion losses due to NTMs. Diffusive transport. Orbit stochasticity 4) A new core-localised nonalfvenic MHD perturbation. Sierpes Mode. It dominates the FI transport in ICRH discharges 26

Fast Particle Physics on ASDEX Upgrade Interaction of Energetic Particles with Large and Small Scale Instabilities

Fast Particle Physics on ASDEX Upgrade Interaction of Energetic Particles with Large and Small Scale Instabilities 1 EX/6-1 Fast Particle Physics on ASDEX Upgrade Interaction of Energetic Particles with Large and Small Scale Instabilities S. Günter 1, G. Conway 1, C. Forest 2, H.-U. Fahrbach 1, M. Garcia Muñoz 1, S.

More information

TAE internal structure through high-resolution soft x-ray measurements in ASDEX-Upgrade. Abstract

TAE internal structure through high-resolution soft x-ray measurements in ASDEX-Upgrade. Abstract TAE internal structure through high-resolution soft x-ray measurements in ASDEX-Upgrade P. Piovesan 1,2, V. Igochine 3, P. Lauber 3, K. Sassenberg 3,4, A. Flaws 3, M. García-Muñoz 3, S. Günter 3, M. Maraschek

More information

Active Control of Alfvén Eigenmodes in the ASDEX Upgrade tokamak

Active 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 information

The role of stochastization in fast MHD phenomena on ASDEX Upgrade

The role of stochastization in fast MHD phenomena on ASDEX Upgrade 1 EX/P9-10 The role of stochastization in fast MHD phenomena on ASDEX Upgrade V. Igochine 1), O.Dumbrajs 2,3), H. Zohm 1), G. Papp 4), G. Por 4), G. Pokol 4), ASDEX Upgrade team 1) 1) MPI für Plasmaphysik,

More information

MHD limits and plasma response in high beta hybrid operations in ASDEX Upgrade

MHD limits and plasma response in high beta hybrid operations in ASDEX Upgrade EUROFUSION WPMST1-CP(16) 15178 V Igochine et al. MHD limits and plasma response in high beta hybrid operations in ASDEX Upgrade Preprint of Paper to be submitted for publication in Proceedings of 26th

More information

Experimental Evidence of Inward Momentum Pinch on JET and Comparison with Theory

Experimental Evidence of Inward Momentum Pinch on JET and Comparison with Theory Experimental Evidence of Inward Momentum Pinch on JET and Comparison with Theory Tuomas Tala, Association Euratom-Tekes, VTT, Finland JET-EFDA Culham Science Centre Abingdon, UK 22nd IAEA Fusion Energy

More information

The performance of improved H-modes at ASDEX Upgrade and projection to ITER

The performance of improved H-modes at ASDEX Upgrade and projection to ITER EX/1-1 The performance of improved H-modes at ASDEX Upgrade and projection to George Sips MPI für Plasmaphysik, EURATOM-Association, D-85748, Germany G. Tardini 1, C. Forest 2, O. Gruber 1, P. Mc Carthy

More information

Impact 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 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 information

Recent Progress in Fast-Ion Physics on JET

Recent Progress in Fast-Ion Physics on JET Recent Progress in Fast-Ion Physics on JET V.G. Kiptily, 1 S.D. Pinches, 1 S.E. Sharapov, 1 D. Borba, 2 F.E. Cecil, 3 D. Darrow, 4 V. Goloborod ko, 5,6 T. Craciunescu, 7 T. Johnson, F. Nabais, 2 C. P.

More information

EX8/3 22nd IAEA Fusion Energy Conference Geneva

EX8/3 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 information

Three Dimensional Effects in Tokamaks How Tokamaks Can Benefit From Stellarator Research

Three Dimensional Effects in Tokamaks How Tokamaks Can Benefit From Stellarator Research 1 TH/P9-10 Three Dimensional Effects in Tokamaks How Tokamaks Can Benefit From Stellarator Research S. Günter, M. Garcia-Munoz, K. Lackner, Ph. Lauber, P. Merkel, M. Sempf, E. Strumberger, D. Tekle and

More information

Improved 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) 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 information

GA A26741 SCINTILLATOR-BASED DIAGNOSTIC FOR FAST ION LOSS MEASUREMENTS ON DIII-D

GA A26741 SCINTILLATOR-BASED DIAGNOSTIC FOR FAST ION LOSS MEASUREMENTS ON DIII-D GA A26741 SCINTILLATOR-BASED DIAGNOSTIC FOR FAST ION LOSS MEASUREMENTS ON DIII-D by R.K. FISHER, D.C. PACE, M. GARCÍA-MUÑOZ, W.W. HEIDBRINK, C.M. MUSCATELLO, M.A. VAN ZEELAND and Y.B. ZHU JUNE 2010 DISCLAIMER

More information

Alcator C-Mod. Double Transport Barrier Plasmas. in Alcator C-Mod. J.E. Rice for the C-Mod Group. MIT PSFC, Cambridge, MA 02139

Alcator C-Mod. Double Transport Barrier Plasmas. in Alcator C-Mod. J.E. Rice for the C-Mod Group. MIT PSFC, Cambridge, MA 02139 Alcator C-Mod Double Transport Barrier Plasmas in Alcator C-Mod J.E. Rice for the C-Mod Group MIT PSFC, Cambridge, MA 139 IAEA Lyon, Oct. 17, Outline Double Barrier Plasma Profiles and Modeling Conditions

More information

Colorado School of Mines, 1500 Illinois Street, Golden, CO 80401, Colorado, USA

Colorado School of Mines, 1500 Illinois Street, Golden, CO 80401, Colorado, USA 1 Studies of MHD Effects on Fast Ions: towards Burning Plasma with ITER-like Wall on JET V.G. Kiptily, 1) S.D. Pinches, 1) S.E. Sharapov, 1) B. Alper, 1) F.E.Cecil, ) D. Darrow, 3) V. Goloborod ko,,5)

More information

Modelling of Frequency Sweeping with the HAGIS code

Modelling of Frequency Sweeping with the HAGIS code Modelling of Frequency Sweeping with the HAGIS code S.D.Pinches 1 H.L.Berk 2, S.E.Sharapov 3, M.Gryaznavich 3 1 Max-Planck-Institut für Plasmaphysik, EURATOM Assoziation, Garching, Germany 2 Institute

More information

Kinetic Alfvén Eigenmodes at ASDEX Upgrade

Kinetic Alfvén Eigenmodes at ASDEX Upgrade Kinetic Alfvén Eigenmodes at ASDEX Upgrade Ph. Lauber 1, M. Brüdgam 1, D. Curran, V. Igochine 1, K. Sassenberg, S. Günter 1, M. Maraschek 1, M. García-Muñoz 1, N. Hicks 1 and the ASDEX Upgrade Team 1 Max-Planck-Institut

More information

Improved Plasma Confinement by Ion Bernstein Waves (IBWs) Interacting with Ions in JET

Improved 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 information

INTERNATIONAL ATOMIC ENERGY AGENCY 22 nd IAEA Fusion Energy Conference Geneva, Switzerland, October 2008

INTERNATIONAL ATOMIC ENERGY AGENCY 22 nd IAEA Fusion Energy Conference Geneva, Switzerland, October 2008 IAEA INTERNATIONAL ATOMIC ENERGY AGENCY 22 nd IAEA Fusion Energy Conference Geneva, Switzerland, 13-18 October 2008 IAEA-CN-165/EX/1-4Ra DEVELOPMENT OF THE HYBRID SCENARIO IN JET E. JOFFRIN1) 5), J. HOBIRK

More information

Nonlinear 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 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 information

INTERNATIONAL ATOMIC ENERGY AGENCY 21 st IAEA Fusion Energy Conference Chengdu, China, October 2006

INTERNATIONAL ATOMIC ENERGY AGENCY 21 st IAEA Fusion Energy Conference Chengdu, China, October 2006 IAEA INTERNATIONAL ATOMIC ENERGY AGENCY st IAEA Fusion Energy Conference Chengdu, China, 6 - October 6 IAEA-CN-9/EX/- THE PERFORMANCE OF IMPROVED H-MODES AT ASDEX UPGRADE AND PROJECTION TO A.C.C. SIPS,

More information

Beam Driven Alfvén Eigenmodes and Fast Ion Transport in the DIII-D and ASDEX Upgrade (AUG) Tokamaks

Beam Driven Alfvén Eigenmodes and Fast Ion Transport in the DIII-D and ASDEX Upgrade (AUG) Tokamaks Beam Driven Alfvén Eigenmodes and Fast Ion Transport in the DIII-D and ASDEX Upgrade (AUG) Tokamaks by M.A. Van Zeeland 1 M. García-Muñoz 2, W.W. Heidbrink 3, I. Classen 4, R.K. Fisher 1, B. Geiger 2,

More information

Spectroscopic determination of the internal amplitude of frequency sweeping TAE

Spectroscopic 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 information

Spectroscopic Determination of the Internal Amplitude of Frequency Sweeping TAE

Spectroscopic Determination of the Internal Amplitude of Frequency Sweeping TAE EFDA JET PR(3)58 S.D. Pinches, H.L. Berk, M.P. Gryaznevich, S.E. Sharapov and JET EFDA contributors Spectroscopic Determination of the Internal Amplitude of Frequency Sweeping TAE . Spectroscopic Determination

More information

Power Exhaust on JET: An Overview of Dedicated Experiments

Power Exhaust on JET: An Overview of Dedicated Experiments Power Exhaust on JET: An Overview of Dedicated Experiments W.Fundamenski, P.Andrew, T.Eich 1, G.F.Matthews, R.A.Pitts 2, V.Riccardo, W.Sailer 3, S.Sipila 4 and JET EFDA contributors 5 Euratom/UKAEA Fusion

More information

EX/4-2: Active Control of Type-I Edge Localized Modes with n = 1 and n = 2 fields on JET

EX/4-2: Active Control of Type-I Edge Localized Modes with n = 1 and n = 2 fields on JET EX/4-2: Active Control of Type-I Edge Localized Modes with n = 1 and n = 2 fields on JET Y Liang (FZ Jülich), JET-EFDA contributors IAEA Fusion Energy Conference, Geneva, Switzerland 13-18/10/2008 Page

More information

Effect of ideal kink instabilities on particle redistribution

Effect of ideal kink instabilities on particle redistribution Effect of ideal kink instabilities on particle redistribution H. E. Ferrari1,2,R. Farengo1, P. L. Garcia-Martinez2, M.-C. Firpo3, A. F. Lifschitz4 1 Comisión Nacional de Energía Atómica, Centro Atomico

More information

A multivariate analysis of disruption precursors on JET and AUG

A multivariate analysis of disruption precursors on JET and AUG A multivariate analysis of disruption precursors on JET and AUG G.Sias 1, R. Aledda 1, B. Cannas 1, R. S. Delogu 2, A. Fanni 1, A. Murari 2, A. Pau 1, the ASDEX Upgrade Team 3 and JET Contributors 4 1

More information

Excitation 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 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 information

MHD-Induced Alpha Particle Loss in TFTR. S.J. Zweben, D.S. Darrow, E.D. Fredrickson, G. Taylor, S. von Goeler, R.B. White

MHD-Induced Alpha Particle Loss in TFTR. S.J. Zweben, D.S. Darrow, E.D. Fredrickson, G. Taylor, S. von Goeler, R.B. White MHD-Induced Alpha Particle Loss in TFTR S.J. Zweben, D.S. Darrow, E.D. Fredrickson, G. Taylor, S. von Goeler, R.B. White Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, NJ 8543 Abstract MHD-induced

More information

Study of High-energy Ion Tail Formation with Second Harmonic ICRF Heating and NBI in LHD

Study of High-energy Ion Tail Formation with Second Harmonic ICRF Heating and NBI in LHD 21st IAEA Fusion Energy Conference Chengdu, China, 16-21 October, 2006 IAEA-CN-149/ Study of High-energy Ion Tail Formation with Second Harmonic ICRF Heating and NBI in LHD K. Saito et al. NIFS-851 Oct.

More information

Turbulent Transport Analysis of JET H-mode and Hybrid Plasmas using QuaLiKiz, TGLF and GLF23

Turbulent 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 information

Progressing 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 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 information

Alpha-particle physics in the tokamak fusion test reactor DT experiment

Alpha-particle physics in the tokamak fusion test reactor DT experiment Plasma Phys. Control. Fusion 39 (1997) A275 A283. Printed in the UK PII: S0741-3335(97)81172-4 Alpha-particle physics in the tokamak fusion test reactor DT experiment S J Zweben a, V Arunasalam a, S H

More information

ITR/P1-19 Tokamak Experiments to Study the Parametric Dependences of Momentum Transport

ITR/P1-19 Tokamak Experiments to Study the Parametric Dependences of Momentum Transport Tokamak Experiments to Study the Parametric Dependences of Momentum Transport T. Tala 1, R.M. McDermott 2, J.E. Rice 3, A. Salmi 1, W. Solomon 4, C. Angioni 2, C. Gao 3, C. Giroud 5, W. Guttenfelder 4,

More information

Energetic Particle Physics in Tokamak Burning Plasmas

Energetic 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 information

Introduction to Fusion Physics

Introduction 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 information

Integrated equilibrium reconstruction and MHD stability analysis of tokamak plasmas in the EU-IM platform

Integrated equilibrium reconstruction and MHD stability analysis of tokamak plasmas in the EU-IM platform EUROFUSION WPCD-PR(16) 15379 R Coelho et al. Integrated equilibrium reconstruction and MHD stability analysis of tokamak plasmas in the EU-IM platform Preprint of Paper to be submitted for publication

More information

Fast particle-driven ion cyclotron emission (ICE) in tokamak plasmas and the case for an ICE diagnostic in ITER

Fast particle-driven ion cyclotron emission (ICE) in tokamak plasmas and the case for an ICE diagnostic in ITER Fast particle-driven ion cyclotron emission (ICE) in tokamak plasmas and the case for an ICE diagnostic in ITER K.G. McClements 1, R. D Inca 2, R.O. Dendy 1,3, L. Carbajal 3, S.C. Chapman 3, J.W.S. Cook

More information

Analysis 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 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 information

Modification of sawtooth oscillations with ICRF waves in the JET tokamak

Modification of sawtooth oscillations with ICRF waves in the JET tokamak Modification of sawtooth oscillations with ICRF waves in the JET tokamak M.J.Mantsinen 1,, B. Alper, C. Angioni 1, R. Buttery, S. Coda, L.-G. Eriksson, J.P. Graves, T. Hellsten, D. Howell, L.C. Ingesson

More information

Non-linear MHD Simulations of Edge Localized Modes in ASDEX Upgrade. Matthias Hölzl, Isabel Krebs, Karl Lackner, Sibylle Günter

Non-linear MHD Simulations of Edge Localized Modes in ASDEX Upgrade. Matthias Hölzl, Isabel Krebs, Karl Lackner, Sibylle Günter Non-linear MHD Simulations of Edge Localized Modes in ASDEX Upgrade Matthias Hölzl, Isabel Krebs, Karl Lackner, Sibylle Günter Matthias Hölzl Nonlinear ELM Simulations DPG Spring Meeting, Jena, 02/2013

More information

Annual report of the ITPA Topical Group on Energetic Particle Physics. For the period Nov 2010 to Oct 2011

Annual report of the ITPA Topical Group on Energetic Particle Physics. For the period Nov 2010 to Oct 2011 Annual report of the ITPA Topical Group on Energetic Particle Physics For the period Nov 2010 to Oct 2011 The EP Topical Group held two meetings (its 6 th and 7 th ) during the reporting period at ENEA

More information

Active and Passive MHD Spectroscopy on Alcator C-Mod

Active and Passive MHD Spectroscopy on Alcator C-Mod Active and Passive MHD Spectroscopy on Alcator C-Mod J A Snipes, D A Schmittdiel, C Boswell, A Fasoli *, W Burke, R S Granetz, R R Parker, S Sharapov #, R Vieira MIT Plasma Science and Fusion Center, Cambridge,

More information

Observation of modes at frequencies above the Alfvén frequency in JET

Observation 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 information

Role of Magnetic Configuration and Heating Power in ITB Formation in JET.

Role of Magnetic Configuration and Heating Power in ITB Formation in JET. Role of Magnetic Configuration and Heating Power in ITB Formation in JET. The JET Team (presented by V. Parail 1 ) JET Joint Undertaking, Abingdon, Oxfordshire, United Kingdom 1 present address: EURATOM/UKAEA

More information

Recent Development of LHD Experiment. O.Motojima for the LHD team National Institute for Fusion Science

Recent Development of LHD Experiment. O.Motojima for the LHD team National Institute for Fusion Science Recent Development of LHD Experiment O.Motojima for the LHD team National Institute for Fusion Science 4521 1 Primary goal of LHD project 1. Transport studies in sufficiently high n E T regime relevant

More information

Ion Cyclotron Emission from JET D-T Plasmas

Ion Cyclotron Emission from JET D-T Plasmas JET P(98)7 G A Cottrell et al Ion Cyclotron Emission from JET D-T Plasmas This document is intended for publication in the open literature. It is made available on the understanding that it may not be

More information

Study of fast ion transport induced by fishbones on JET

Study of fast ion transport induced by fishbones on JET Study of fast ion transport induced by fishbones on JET C. Perez von Thun, 1,2 A. Salmi, 3 A. Perona, 4 S. E. Sharapov, 5 S. D. Pinches, 5 S. Popovichev, 5 S. Conroy, 6 V. G. Kiptily, 5 M. Brix, 5 M. Cecconello,

More information

Active and Fast Particle Driven Alfvén Eigenmodes in Alcator C-Mod

Active 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 information

Impact of Energetic-Ion-Driven Global Modes on Toroidal Plasma Confinements

Impact 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 information

RFP helical equilibria reconstruction with V3FIT-VMEC

RFP helical equilibria reconstruction with V3FIT-VMEC RFP helical equilibria reconstruction with V3FIT-VMEC D. Terranova 1 J.D. Hanson 2, S.P. Hirshman 3, L. Marrelli 1 1 Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione, Padova, Italy 2 Auburn University,

More information

Characterization of neo-classical tearing modes in high-performance I- mode plasmas with ICRF mode conversion flow drive on Alcator C-Mod

Characterization of neo-classical tearing modes in high-performance I- mode plasmas with ICRF mode conversion flow drive on Alcator C-Mod 1 EX/P4-22 Characterization of neo-classical tearing modes in high-performance I- mode plasmas with ICRF mode conversion flow drive on Alcator C-Mod Y. Lin, R.S. Granetz, A.E. Hubbard, M.L. Reinke, J.E.

More information

Current 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 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 information

Triggering Mechanisms for Transport Barriers

Triggering Mechanisms for Transport Barriers Triggering Mechanisms for Transport Barriers O. Dumbrajs, J. Heikkinen 1, S. Karttunen 1, T. Kiviniemi, T. Kurki-Suonio, M. Mantsinen, K. Rantamäki 1, S. Saarelma, R. Salomaa, S. Sipilä, T. Tala 1 Euratom-TEKES

More information

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 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 information

Physics studies of the improved H-mode scenario in ASDEX Upgrade

Physics studies of the improved H-mode scenario in ASDEX Upgrade 1 EX/P1-7 Physics studies of the improved H-mode scenario in ASDEX Upgrade J. Stober 1, A.C.C. Sips 1, C. Angioni 1, C. Forest, O. Gruber 1, J. Hobirk 1, L.D. Horton 1, C.F. Maggi 1, M. Maraschek 1, P.

More information

Simulation Study of Interaction between Energetic Ions and Alfvén Eigenmodes in LHD

Simulation 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 information

Comparison of theory-based and semi-empirical transport modelling in JET plasmas with ITBs

Comparison of theory-based and semi-empirical transport modelling in JET plasmas with ITBs INSTITUTE OF PHYSICS PUBLISHING Plasma Phys. Control. Fusion (). p. PLASMA PHYSICS AND CONTROLLED FUSION PII: S7-()9-X Comparison of theory-based and semi-empirical transport modelling in JET plasmas with

More information

ASSESSMENT AND MODELING OF INDUCTIVE AND NON-INDUCTIVE SCENARIOS FOR ITER

ASSESSMENT AND MODELING OF INDUCTIVE AND NON-INDUCTIVE SCENARIOS FOR ITER ASSESSMENT AND MODELING OF INDUCTIVE AND NON-INDUCTIVE SCENARIOS FOR ITER D. BOUCHER 1, D. MOREAU 2, G. VAYAKIS 1, I. VOITSEKHOVITCH 3, J.M. ANÉ 2, X. GARBET 2, V. GRANDGIRARD 2, X. LITAUDON 2, B. LLOYD

More information

Energetic particle modes: from bump on tail to tokamak plasmas

Energetic particle modes: from bump on tail to tokamak plasmas Energetic particle modes: from bump on tail to tokamak plasmas M. K. Lilley 1 B. N. Breizman 2, S. E. Sharapov 3, S. D. Pinches 3 1 Physics Department, Imperial College London, London, SW7 2AZ, UK 2 IFS,

More information

Snakes and similar coherent structures in tokamaks

Snakes and similar coherent structures in tokamaks Snakes and similar coherent structures in tokamaks A. Y. Aydemir 1, K. C. Shaing 2, and F. W. Waelbroeck 1 1 Institute for Fusion Studies, The University of Texas at Austin, Austin, TX 78712 2 Plasma and

More information

Integrated Heat Transport Simulation of High Ion Temperature Plasma of LHD

Integrated Heat Transport Simulation of High Ion Temperature Plasma of LHD 1 TH/P6-38 Integrated Heat Transport Simulation of High Ion Temperature Plasma of LHD S. Murakami 1, H. Yamaguchi 1, A. Sakai 1, K. Nagaoka 2, H. Takahashi 2, H. Nakano 2, M. Osakabe 2, K. Ida 2, M. Yoshinuma

More information

Electron temperature barriers in the RFX-mod experiment

Electron temperature barriers in the RFX-mod experiment Electron temperature barriers in the RFX-mod experiment A. Scaggion Consorzio RFX, Padova, Italy Tuesday 5 th October 2010 ADVANCED PHYSICS LESSONS 27/09/2010 07/10/2010 IPP GARCHING JOINT EUROPEAN RESEARCH

More information

arxiv: v1 [physics.plasm-ph] 13 Jun 2018

arxiv: v1 [physics.plasm-ph] 13 Jun 2018 Observations and modelling of ion cyclotron emission observed in JET plasmas using a sub-harmonic arc detection system during ion cyclotron resonance heating arxiv:1806.05149v1 [physics.plasm-ph] 13 Jun

More information

Determination of q Profiles in JET by Consistency of Motional Stark Effect and MHD Mode Localization

Determination of q Profiles in JET by Consistency of Motional Stark Effect and MHD Mode Localization Determination of q Profiles in JET by Consistency of Motional Stark Effect and MHD Mode Localization R. De Angelis 1), F. Orsitto1), M. Baruzzo 2), P. Buratti 1), B. Alper 3), L. Barrera 4), A. Botrugno

More information

Neutral Beam-Ion Prompt Loss Induced by Alfvén Eigenmodes in DIII-D

Neutral Beam-Ion Prompt Loss Induced by Alfvén Eigenmodes in DIII-D Neutral Beam-Ion Prompt Loss Induced by Alfvén Eigenmodes in DIII-D by X. Chen,1 M.E. Austin,2 R.K. Fisher,3 W.W. Heidbrink,1 G.J. Kramer,4 R. Nazikian,4 D.C. Pace,3 C.C. Petty,3 M.A. Van Zeeland3 1University

More information

Analysis 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 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 information

Ion Cyclotron Resonance Heating for tungsten control in various JET H-mode scenarios

Ion Cyclotron Resonance Heating for tungsten control in various JET H-mode scenarios EUROFUSION WPJET1-CP(16) 15005 M Goniche et al. Ion Cyclotron Resonance Heating for tungsten control in various JET H-mode scenarios Preprint of Paper to be submitted for publication in Proceedings of

More information

Fast ion generation with novel three-ion radiofrequency heating scenarios:

Fast ion generation with novel three-ion radiofrequency heating scenarios: 1 Fast ion generation with novel three-ion radiofrequency heating scenarios: from JET, W7-X and ITER applications to aneutronic fusion studies Yevgen Kazakov 1, D. Van Eester 1, J. Ongena 1, R. Bilato

More information

Power Deposition Measurements in Deuterium and Helium Discharges in JET MKIIGB Divertor by IR-Thermography

Power Deposition Measurements in Deuterium and Helium Discharges in JET MKIIGB Divertor by IR-Thermography EFDA JET CP(02)01/03 T Eich, A Herrmann, P Andrew and A Loarte Power Deposition Measurements in Deuterium and Helium Discharges in JET MKIIGB Divertor by IR-Thermography . Power Deposition Measurements

More information

- Effect of Stochastic Field and Resonant Magnetic Perturbation on Global MHD Fluctuation -

- Effect of Stochastic Field and Resonant Magnetic Perturbation on Global MHD Fluctuation - 15TH WORKSHOP ON MHD STABILITY CONTROL: "US-Japan Workshop on 3D Magnetic Field Effects in MHD Control" U. Wisconsin, Madison, Nov 15-17, 17, 2010 LHD experiments relevant to Tokamak MHD control - Effect

More information

Global gyrokinetic modeling of geodesic acoustic modes and shear Alfvén instabilities in ASDEX Upgrade.

Global 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 information

Internal Transport Barrier Triggering by Rational Magnetic Flux Surfaces in Tokamaks

Internal Transport Barrier Triggering by Rational Magnetic Flux Surfaces in Tokamaks EFDA JET CP(0)07/09 E. Joffrin, C.D. Challis, G.D. Conway, X. Garbet, A. Gude, S. Guenther, N. C. Hawkes, T.C. Hender, D. Howell, G.T.A. Huysmans, E. Lazarro, P. Maget, M. Marachek, A.G. Peeters, S.D.

More information

Fast Particle Instabilities in MAST

Fast Particle Instabilities in MAST 1 EX/P8-7 Fast Particle Instabilities in MAST S.D. Pinches 1), L.C. Appel 1), I.T. Chapman 1), G. Cunningham 1), D. Dunai 2), M.P. Gryaznevich 1), A.R. Field 1), M.J. Hole 3), D.F. Howell 1), M.-D. Hua

More information

Effects of stellarator transform on sawtooth oscillations in CTH. Jeffrey Herfindal

Effects of stellarator transform on sawtooth oscillations in CTH. Jeffrey Herfindal Effects of stellarator transform on sawtooth oscillations in CTH Jeffrey Herfindal D.A. Ennis, J.D. Hanson, G.J. Hartwell, E.C. Howell, C.A. Johnson, S.F. Knowlton, X. Ma, D.A. Maurer, M.D. Pandya, N.A.

More information

Active Control of Type-I Edge Localized Modes with n=1 and n=2 fields on JET

Active Control of Type-I Edge Localized Modes with n=1 and n=2 fields on JET Active Control of Type-I Edge Localized Modes with n=1 and n=2 fields on JET Y. Liang 1, H. R. Koslowski 1, P. R. Thomas 2, E. Nardon 3, S. Jachmich 4, A. Alfier 5, G. Arnoux 2, Y. Baranov 3, M. Bécoulet

More information

Studies of the Quiescent H-mode regime in ASDEX Upgrade and JET

Studies of the Quiescent H-mode regime in ASDEX Upgrade and JET IAEA INTERNATIONAL ATOMIC ENERGY AGENCY th IAEA Fusion Energy Conference Vilamoura, Portugal, -6 November IAEA-CN-6 / EX / - Studies of the Quiescent H-mode regime in ASDEX Upgrade and JET W. Suttrop,

More information

Progress in Transport Modelling of Internal Transport Barrier Plasmas in JET

Progress 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 information

Enquiries about copyright and reproduction should in the first instance be addressed to the UKAEA Publications Officer, Culham Science Centre,

Enquiries about copyright and reproduction should in the first instance be addressed to the UKAEA Publications Officer, Culham Science Centre, UKAEA-CCFE-PR(18)14 K. G. McClements, A. Brisset, B. Chapman, S. C. Chapman, R. O. Dendy, P. Jacquet, V. G. Kiptily, M. Mantsinen, B. C. G. Reman and JET Contributors Observations and modelling of ion

More information

Non-linear modeling of the Edge Localized Mode control by Resonant Magnetic Perturbations in ASDEX Upgrade

Non-linear modeling of the Edge Localized Mode control by Resonant Magnetic Perturbations in ASDEX Upgrade 1 TH/P1-26 Non-linear modeling of the Edge Localized Mode control by Resonant Magnetic Perturbations in ASDEX Upgrade F.Orain 1, M.Hölzl 1, E.Viezzer 1, M.Dunne 1, M.Bécoulet 2, P.Cahyna 3, G.T.A.Huijsmans

More information

Comparison of Ion Internal Transport Barrier Formation between Hydrogen and Helium Dominated Plasmas )

Comparison of Ion Internal Transport Barrier Formation between Hydrogen and Helium Dominated Plasmas ) Comparison of Ion Internal Transport Barrier Formation between Hydrogen and Helium Dominated Plasmas ) Kenichi NAGAOKA 1,2), Hiromi TAKAHASHI 1,2), Kenji TANAKA 1), Masaki OSAKABE 1,2), Sadayoshi MURAKAMI

More information

Measurement and control of the fast ion redistribution on MAST

Measurement and control of the fast ion redistribution on MAST 1 EX/P6-06 Measurement and control of the fast ion redistribution on MAST M. Turnyanskiy 1, C. D. Challis 1, R. J. Akers 1, M. Cecconello 2, D. L. Keeling 1, A. Kirk 1, R. Lake, S. D. Pinches 1,3, S. Sangaroon

More information

Shear Alfvén Wave Continuous Spectrum in the Presence of a Magnetic Island

Shear 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 information

Influence of ECR Heating on NBI-driven Alfvén Eigenmodes in the TJ-II Stellarator

Influence of ECR Heating on NBI-driven Alfvén Eigenmodes in the TJ-II Stellarator EX/P- Influence of ECR Heating on NBI-driven Alfvén Eigenmodes in the TJ-II Stellarator Á. Cappa, F. Castejón, T. Estrada, J.M. Fontdecaba, M. Liniers and E. Ascasíbar Laboratorio Nacional de Fusión CIEMAT,

More information

Global particle-in-cell simulations of Alfvénic modes

Global 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 information

Observation of Neo-Classical Ion Pinch in the Electric Tokamak*

Observation 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 information

Time-Frequency Analysis of Non-Stationary Signals in Fusion Plasmas Using the Choi-Williams Distribution

Time-Frequency Analysis of Non-Stationary Signals in Fusion Plasmas Using the Choi-Williams Distribution EFDA JET PR(03)49 A.C.A. Figueiredo, M.F.F. Nave and JET EFDA contributors Time-Frequency Analysis of Non-Stationary Signals in Fusion Plasmas Using the Choi-Williams Distribution . Time-Frequency Analysis

More information

Experimental Study of the Stability of Alfvén Eigenmodes on JET

Experimental 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 information

ENERGETIC PARTICLES AND BURNING PLASMA PHYSICS

ENERGETIC 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 information

Formation of High-b ECH Plasma and Inward Particle Diffusion in RT-1

Formation of High-b ECH Plasma and Inward Particle Diffusion in RT-1 J Fusion Energ (2010) 29:553 557 DOI 10.1007/s10894-010-9327-6 ORIGINAL RESEARCH Formation of High-b ECH Plasma and Inward Particle Diffusion in RT-1 H. Saitoh Z. Yoshida J. Morikawa Y. Yano T. Mizushima

More information

Active MHD Control Needs in Helical Configurations

Active MHD Control Needs in Helical Configurations Active MHD Control Needs in Helical Configurations M.C. Zarnstorff 1 Presented by E. Fredrickson 1 With thanks to A. Weller 2, J. Geiger 2, A. Reiman 1, and the W7-AS Team and NBI-Group. 1 Princeton Plasma

More information

DIAGNOSTICS FOR ADVANCED TOKAMAK RESEARCH

DIAGNOSTICS FOR ADVANCED TOKAMAK RESEARCH DIAGNOSTICS FOR ADVANCED TOKAMAK RESEARCH by K.H. Burrell Presented at High Temperature Plasma Diagnostics 2 Conference Tucson, Arizona June 19 22, 2 134 /KHB/wj ROLE OF DIAGNOSTICS IN ADVANCED TOKAMAK

More information

Sawtooth Control. J. P. Graves CRPP, EPFL, Switzerland. FOM Instituut voor Plasmafysica Rijnhuizen, Association EURATOM-FOM, The Netherlands

Sawtooth Control. J. P. Graves CRPP, EPFL, Switzerland. FOM Instituut voor Plasmafysica Rijnhuizen, Association EURATOM-FOM, The Netherlands Sawtooth Control J. P. Graves CRPP, EPFL, Switzerland B. Alper 1, I. Chapman 2, S. Coda, M. de Baar 3, L.-G. Eriksson 4, R. Felton 1, D. Howell 2, T. Johnson 5, V. Kiptily 1, R. Koslowski 6, M. Lennholm

More information

Fast ion physics in the C-2U advanced, beam-driven FRC

Fast ion physics in the C-2U advanced, beam-driven FRC Fast ion physics in the C-2U advanced, beam-driven FRC Richard Magee for the TAE Team 216 US-Japan Workshop on the Compact Torus August 23, 216! High β FRC embedded in magnetic mirror is a unique fast

More information

The Role of Dynamo Fluctuations in Anomalous Ion Heating, Mode Locking, and Flow Generation

The Role of Dynamo Fluctuations in Anomalous Ion Heating, Mode Locking, and Flow Generation The Role of Dynamo Fluctuations in Anomalous Ion Heating, Mode Locking, and Flow Generation P. W. Terry 1), R. Gatto 1), R. Fitzpatrick 2), C.C. Hegna 3), and G. Fiksel 1) 1) Department of Physics, University

More information

Control of Sawtooth Oscillation Dynamics using Externally Applied Stellarator Transform. Jeffrey Herfindal

Control of Sawtooth Oscillation Dynamics using Externally Applied Stellarator Transform. Jeffrey Herfindal Control of Sawtooth Oscillation Dynamics using Externally Applied Stellarator Transform Jeffrey Herfindal D.A. Ennis, J.D. Hanson, G.J. Hartwell, S.F. Knowlton, X. Ma, D.A. Maurer, M.D. Pandya, N.A. Roberds,

More information

Introduction to Plasma Physics

Introduction to Plasma Physics Introduction to Plasma Physics Hartmut Zohm Max-Planck-Institut für Plasmaphysik 85748 Garching DPG Advanced Physics School The Physics of ITER Bad Honnef, 22.09.2014 A simplistic view on a Fusion Power

More information

Effects of Alpha Particle Transport Driven by Alfvénic Instabilities on Proposed Burning Plasma Scenarios on ITER

Effects of Alpha Particle Transport Driven by Alfvénic Instabilities on Proposed Burning Plasma Scenarios on ITER 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.

More information

Plasma formation in MAST by using the double null merging technique

Plasma formation in MAST by using the double null merging technique 1 Plasma formation in MAST by using the double null merging technique P. Micozzi 1, F. Alladio 1, P. Costa 1, A. Mancuso 1, A. Sykes 2, G. Cunningham 2, M. Gryaznevich 2, J. Hicks 2, M. Hood 2, G. McArdle

More information