Time-domain simulation and benchmark of LHCD experiment at ITER relevant parameters

Size: px
Start display at page:

Download "Time-domain simulation and benchmark of LHCD experiment at ITER relevant parameters"

Transcription

1 Time-domain simulation and benchmark of LHCD experiment at ITER relevant parameters S. Shiraiwa, P. Bonoli, F. Poli 1, R. W, Harvey 2, C. Kessel 1, R. Parker, and G. Wallace MIT-PSFC, PPPL 1, and CompX 2 11/11/2013, 55 th APS-DPP Denver, Colorado CO4-11, S. Shiraiwa 1

2 LHCD integrated modeling from TRANSP/LSC has shown qualitative agreement with experiment, but LH models are rather simple TRANSP/LSC model predicts J(r) Consistent with q profile measurement Evolving to R.S profile Simplifications includes Stationary solution of FP equations. 1D (velocity space) Fokker-Planck for S rf No finite launcher height No wave propagation in SOL nor model for a parasitic absorption No full wave effects (diffraction ) Predictive modeling requires an accurate transport model CO4-11, S. Shiraiwa 2

3 Integrated Plasma Simulator (IPS) provides a robust framework for multi-physics simulations Plasma State : stores information of tokamak plasma (equilibrium, profiles,,) Components : compute each physics (equilibrium, transport, H&CD, stability) Wrapper : handles interaction with PS Driver : runs components (D. Batchelor, IOP Conf. Series 2008) CO4-11, S. Shiraiwa 3

4 Parallel GENRAY/CQL3D (Ray tracing/3d Fokker Planck) for LHCD calculation was recently integrated into the IPS plasma state ψ(r, Z), T(r), n(r) GENRAY Ray trajectory Equilibrium : ψ(r, Z) Radial profiles: Temperatures: T e (r), T i (r) Densities: n e (r), n i (r) Heatings: P OH (r), P LH (r),.... ψ(r, Z), T(r), n(r) P LH (R), J LH (r) ψ(r, Z), T(r), n(r) CQL3D TSC 0.2ms τ alfven 1ms time advance used for C-Mod Time scales for a typical LH experiment on C-Mod slowing down : 3-4 ms, energy confinement : 20-40ms, current relaxation: ms CO4-11, S. Shiraiwa 4

5 IPS simulation setup for an ITB discharge on C-Mod with LHCD Target plasma I plamsa ~ 500 ka Density ~ 5x10 19 m -3 Low V loop, highly non-inductive (NI) discharge Given parameters I p, P LH, n,zeff Thermal transport is modeled by Coppi-tang model Density profile (particle transport is not solved) V loop, T e slightly higher than the CO4-11, S. Shiraiwa experiment 5

6 First 30ms after LH turn on : IPS reproduces smooth QL plateau development as T e and E ]] evolve CO4-11, S. Shiraiwa 6

7 CO4-11, S. Shiraiwa 7

8 IPS predicts significant broadening of current profile by offaxis LHCD over several hundred ms CO4-11, S. Shiraiwa 8

9 Final simulation result : good qualitative agreement with experiment, and significant change of q profile (MA) I plasma I BS + I LH I LH (kev) T e0 (V) V surf q o IPS Time (s) TRANSP/LSC Simulation reproduces time evolution of V loop and T e. T e profile is also in good agreement Need to include shear effects on χ for ITB? CO4-11, S. Shiraiwa 9

10 Time-dependent simulation indicates P LH and J LH are sensitive to the evolving magnetic equilibrium. 0.9s 1.0 s 1.3 s IPS simulation P LH (r) Power deposition profile shifts outward as T e increases and as magnetic equilibrium evolves. May have a positive feed back? Further benchmarking using experimental data (MSE and HXR) is necessary. CO4-11, S. Shiraiwa 10

11 Summary LHCD simulations using ray tracing + 3D Fokker Planck model have been done using the Integrated Plasma Simulator (IPS). Parallelized GENRAY/CQL3D enables high physics fidelity. SOL plasma model based on C-Mod experiment is used to account for parasitic edge absorption. LHRF generated electron distribution is simulated in the time-evolving plasma. The IPS was applied to C-Mod discharges with LHCD. Low density (5-6x10 20 m -3 ), highly NI (f LH = ) discharges were used. Found good agreement with the experimentally measured V surf (t) and T e (t, r). J LH profile is predicted to become far off-axis towards the end of the LHCD phase. ITB is not yet reproduced due to the absence of shear stabilization mechanism in the Coppi-Tang transport model. Current Diffusive Ballooning Model (CDBM) 1 was recently added to TSC 2 and will be used in future study 1 Fukuyama, PPCF (1995) 2 F. Poli,, PoP (2013) CO4-11, S. Shiraiwa 11

12 Preliminary : IPS predicts significant outward-shift of P LH and J LH, why??? Ray trajectory indicates Stronger up-shift at later time Change of accessibility CO4-11, S. Shiraiwa 12

13 At relatively low density (n e ~ 5-6x10 19 m -3 ), full NI LHCD with good CD efficiency has been demonstrated Full CD with OH recharging n e ~ 5-6x10 19 m -3, Ip ~ 0.5 MA, B φ =5.4 T CD efficiency :η ( n e I LH R 0 /P LH ) = x1019 A/Wm 2 (ITER : η=2.3x10 19 A/Wm 2 ) Off-axis CD results in RS profile. Triggering ITB was also observed in this fully NI regime. kinetic-mse EFIT at 1.36 s CO4-11, S. Shiraiwa 13

14 CO4-11, S. Shiraiwa 14

15 Magnetic shear Normalized pressure gradient Magnetic curvature Rotation shear CO4-11, S. Shiraiwa 15

16 Proposed approach to extend LHCD to ne >1x10 20 m -3 is to realize high single pass absorption Additional off-midplane launcher is designed to Double the total power Produce synergistic interaction in velocity space to increase of first pass absorption to ~ 80 % Drive J LH localized around r/a = Provide critical information for reactor scale experiments. Advanced codes are required to perform integrated modeling. GENRAY/CQL3D n e ~ 1.4x10 20 m -3 T e0 ~ 5keV LH2+LH3 LH2 CO4-11, S. Shiraiwa 16

Integrated modeling of LHCD non- induc6ve scenario development on Alcator C- Mod

Integrated modeling of LHCD non- induc6ve scenario development on Alcator C- Mod Integrated modeling of LHCD non- induc6ve scenario development on Alcator C- Mod S. Shiraiwa, P. Bonoli, R. Parker, F. Poli 1, G. Wallace, and J, R. Wilson 1 PSFC, MIT and 1 PPPL 40th European Physical

More information

Lower Hybrid Current Drive Experiments on Alcator C-Mod: Comparison with Theory and Simulation

Lower Hybrid Current Drive Experiments on Alcator C-Mod: Comparison with Theory and Simulation Lower Hybrid Current Drive Experiments on Alcator C-Mod: Comparison with Theory and Simulation P.T. Bonoli, A. E. Hubbard, J. Ko, R. Parker, A.E. Schmidt, G. Wallace, J. C. Wright, and the Alcator C-Mod

More information

Studies of Lower Hybrid Range of Frequencies Actuators in the ARC Device

Studies of Lower Hybrid Range of Frequencies Actuators in the ARC Device Studies of Lower Hybrid Range of Frequencies Actuators in the ARC Device P. T. Bonoli, Y. Lin. S. Shiraiwa, G. M. Wallace, J. C. Wright, and S. J. Wukitch MIT PSFC, Cambridge, MA 02139 59th Annual Meeting

More information

Development of LH wave fullwave simulation based on FEM

Development of LH wave fullwave simulation based on FEM Development of LH wave fullwave simulation based on FEM S. Shiraiwa and O. Meneghini on behalf of LHCD group of Alacator C-Mod PSFC, MIT 2010/03/10 San-Diego, CA Special acknowledgements : R. Parker, P.

More information

Recent results from lower hybrid current drive experiments on Alcator C-Mod

Recent results from lower hybrid current drive experiments on Alcator C-Mod Recent results from lower hybrid current drive experiments on Alcator C-Mod R. R. Parker, S.-G. Baek, C. Lau, Y. Ma, O. Meneghini, R. T. Mumgaard, Y. Podpaly, M. Porkolab, J.E. Rice, A. E. Schmidt, S.

More information

Full-wave Simulations of Lower Hybrid Wave Propagation in the EAST Tokamak

Full-wave Simulations of Lower Hybrid Wave Propagation in the EAST Tokamak Full-wave Simulations of Lower Hybrid Wave Propagation in the EAST Tokamak P. T. BONOLI, J. P. LEE, S. SHIRAIWA, J. C. WRIGHT, MIT-PSFC, B. DING, C. YANG, CAS-IPP, Hefei 57 th Annual Meeting of the APS

More information

Theory Work in Support of C-Mod

Theory Work in Support of C-Mod Theory Work in Support of C-Mod 2/23/04 C-Mod PAC Presentation Peter J. Catto for the PSFC theory group MC & LH studies ITB investigations Neutrals & rotation BOUT improvements TORIC ICRF Mode Conversion

More information

Integration of Fokker Planck calculation in full wave FEM simulation of LH waves

Integration of Fokker Planck calculation in full wave FEM simulation of LH waves Integration of Fokker Planck calculation in full wave FEM simulation of LH waves O. Meneghini S. Shiraiwa R. Parker 51 st DPP APS, Atlanta November 4, 29 L H E A F * Work supported by USDOE awards DE-FC2-99ER54512

More information

EXC/P2-02. Experiments and Simulations of ITER-like Plasmas in Alcator C-Mod

EXC/P2-02. Experiments and Simulations of ITER-like Plasmas in Alcator C-Mod EXC/P2-02 Experiments and Simulations of ITER-like Plasmas in Alcator C-Mod J. R. Wilson 1, C. E. Kessel 1, S. Wolfe 2, I. Hutchinson 2, P. Bonoli 2, C. Fiore 2, A. Hubbard 2, J. Hughes 2, Y. Lin 2, Y.

More information

Modelling of the EAST lower-hybrid current drive experiment using GENRAY/CQL3D and TORLH/CQL3D

Modelling of the EAST lower-hybrid current drive experiment using GENRAY/CQL3D and TORLH/CQL3D Modelling of the EAST lower-hybrid current drive experiment using GENRAY/CQL3D and TORLH/CQL3D The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story

More information

Review of Recent Experimental and Modeling Progress in the Lower Hybrid Range of Frequencies at ITER Relevant Parameters

Review of Recent Experimental and Modeling Progress in the Lower Hybrid Range of Frequencies at ITER Relevant Parameters Review of Recent Experimental and Modeling Progress in the Lower Hybrid Range of Frequencies at ITER Relevant Parameters P. T. Bonoli PSFC MIT, Cambridge, MA 02139 (USA) 20 th Topical Conference on Radio

More information

Self-consistent full wave simulations of lower hybrid waves

Self-consistent full wave simulations of lower hybrid waves 18 th RF Topical Conference Gent, June 2009 Self-consistent full wave simulations of lower hybrid waves John C. Wright P. T. Bonoli - MIT E.J. Valeo, C. K. Phillips - PPPL R. W. Harvey - Comp-X with thanks

More information

C-Mod Advanced Tokamak Program: Recent progress and near-term plans

C-Mod Advanced Tokamak Program: Recent progress and near-term plans Advanced Tokamak Program: Recent progress and near-term plans Program Advisory Committee Review February 2, 2004 MIT PSFC Presented by A. Hubbard MIT Plasma Science and Fusion Center, for the team Advanced

More information

Observation 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* 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 information

ICRF Minority-Heated Fast-Ion Distributions on the Alcator C-Mod: Experiment and Simulation

ICRF Minority-Heated Fast-Ion Distributions on the Alcator C-Mod: Experiment and Simulation ICRF Minority-Heated Fast-Ion Distributions on the Alcator C-Mod: Experiment and Simulation A. Bader 1, P. Bonoli 1, R. Granetz 1, R.W. Harvey 2, E.F. Jaeger 3, R. Parker 1, S. Wukitch 1. 1)MIT-PSFC, Cambridge,

More information

Ray Tracing and Full-wave Simulation of KSTAR LH Wave

Ray Tracing and Full-wave Simulation of KSTAR LH Wave Ray Tracing and Full-wave Simulation of KSTAR LH Wave 2016 KO-JA Workshop on Physics and Technology of Heating and Current Drive Presented by Young-soon Bae NFRI a W. Namkung, a M.H. Cho, b S. Shiraiwa,

More information

Computational Study of Non-Inductive Current Buildup in Compact DEMO Plant with Slim Center Solenoid

Computational Study of Non-Inductive Current Buildup in Compact DEMO Plant with Slim Center Solenoid 1st IAEA TM, First Generation of Fusion Power Plants Design and Technology -, Vienna, July 5-7, 25 Computational Study of Non-Inductive Current Buildup in Compact DEMO Plant with Slim Center Solenoid Y.

More information

ARIES ACT1 progress & ACT2

ARIES ACT1 progress & ACT2 ARIES ACT1 progress & ACT2 C. Kessel and F. Poli Princeton Plasma Physics Laboratory ARIES Project Meeting, 9/26-27/2012 Wash. DC Outline Temperature and density profile variations at R = 5.5 m in order

More information

Full wave simulations of lower hybrid wave propagation in tokamaks

Full wave simulations of lower hybrid wave propagation in tokamaks PSFC/JA-09-18 Full wave simulations of lower hybrid wave propagation in tokamaks J. C. Wright*, P. T. Bonoli*, C. K. Phillips, E. Valeo and R. W. Harvey** *MIT - Plasma Science and Fusion Center Cambridge,

More information

Full wave simulations of lower hybrid wave propagation in tokamaks

Full wave simulations of lower hybrid wave propagation in tokamaks Full wave simulations of lower hybrid wave propagation in tokamaks J. C. Wright, P. T. Bonoli, C. K. Phillips, E. Valeo and R. W. Harvey MIT - Plasma Science and Fusion Center Cambridge, MA 02139 Princeton

More information

Electron Bernstein Wave (EBW) Physics In NSTX and PEGASUS

Electron Bernstein Wave (EBW) Physics In NSTX and PEGASUS Electron Bernstein Wave (EBW) Physics In NSTX and PEGASUS G. Taylor 1, J.B. Caughman 2, M.D. Carter 2, S. Diem 1, P.C. Efthimion 1, R.W. Harvey 3, J. Preinhaelter 4, J.B. Wilgen 2, T.S. Bigelow 2, R.A.

More information

Review of recent experimental and modeling advances in the understanding of lower hybrid current drive in ITER-relevant regimes

Review of recent experimental and modeling advances in the understanding of lower hybrid current drive in ITER-relevant regimes UKAEA-CCFE-PR(18)32 B. J. Ding, P. T. Bonoli, A. Tuccillo, M. Goniche, K. Kirov, M. Li, Y. Li, R. Cesario, Y. Peysson, A. Ekedahl, L. Amicucci, S. Baek, I. Faust, R. Parker, S. Shiraiwa, G. M. Wallace,

More information

Localized Electron Cyclotron Current Drive in DIII D: Experiment and Theory

Localized Electron Cyclotron Current Drive in DIII D: Experiment and Theory Localized Electron Cyclotron Current Drive in : Experiment and Theory by Y.R. Lin-Liu for C.C. Petty, T.C. Luce, R.W. Harvey,* L.L. Lao, P.A. Politzer, J. Lohr, M.A. Makowski, H.E. St John, A.D. Turnbull,

More information

Observations of Counter-Current Toroidal Rotation in Alcator C-Mod LHCD Plasmas

Observations of Counter-Current Toroidal Rotation in Alcator C-Mod LHCD Plasmas 1 EX/P5-4 Observations of Counter-Current Toroidal Rotation in Alcator C-Mod LHCD Plasmas J.E. Rice 1), A.C. Ince-Cushman 1), P.T. Bonoli 1), M.J. Greenwald 1), J.W. Hughes 1), R.R. Parker 1), M.L. Reinke

More information

Stationary, High Bootstrap Fraction Plasmas in DIII-D Without Inductive Current Control

Stationary, 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 information

Improved RF Actuator Schemes for the Lower Hybrid and the Ion Cyclotron Range of Frequencies in Reactor-Relevant Plasmas

Improved RF Actuator Schemes for the Lower Hybrid and the Ion Cyclotron Range of Frequencies in Reactor-Relevant Plasmas Improved RF Actuator Schemes for the Lower Hybrid and the Ion Cyclotron Range of Frequencies in Reactor-Relevant Plasmas P. T. Bonoli*, S. G. Baek, B. LaBombard, K. Filar, M. Greenwald, R. Leccacorvi,

More information

Time Dependent evolution of RF-generated non-thermal particle distributions in fusion plasmas

Time Dependent evolution of RF-generated non-thermal particle distributions in fusion plasmas Time Dependent evolution of RF-generated non-thermal particle distributions in fusion plasmas John C. Wright 1 J.P. Lee 1 P. T. Bonoli 1 A.E. Schmidt 1 and E.J. Valeo 2 1 Plasma Science and Fusion Center

More information

Enhanced Energy Confinement Discharges with L-mode-like Edge Particle Transport*

Enhanced Energy Confinement Discharges with L-mode-like Edge Particle Transport* Enhanced Energy Confinement Discharges with L-mode-like Edge Particle Transport* E. Marmar, B. Lipschultz, A. Dominguez, M. Greenwald, N. Howard, A. Hubbard, J. Hughes, B. LaBombard, R. McDermott, M. Reinke,

More information

Lower Hybrid RF: Results, Goals and Plans. J.R. Wilson Alcator C-Mod Program Advisory Meeting January 27, 2010

Lower Hybrid RF: Results, Goals and Plans. J.R. Wilson Alcator C-Mod Program Advisory Meeting January 27, 2010 Lower Hybrid RF: Results, Goals and Plans J.R. Wilson Alcator C-Mod Program Advisory Meeting January 27, 2010 ITER Needs and the RENEW Report Provide a Context for LH Research on C-Mod ITER Needs: Hea-ng

More information

Power balance of Lower Hybrid Current Drive in the SOL of High Density Plasmas on Alcator C-Mod

Power balance of Lower Hybrid Current Drive in the SOL of High Density Plasmas on Alcator C-Mod Power balance of Lower Hybrid Current Drive in the SOL of High Density Plasmas on Alcator C-Mod I.C. Faust, G.M. Wallace, S.G. Baek, D. Brunner, B. LaBombard, R.R. Parker, Y. Lin, S. Shiraiwa, J.L. Terry,

More information

Lower Hybrid Wave Induced Rotation on Alcator C-Mod* Ron Parker, Yuri Podpaly, John Rice, Andréa Schmidt

Lower Hybrid Wave Induced Rotation on Alcator C-Mod* Ron Parker, Yuri Podpaly, John Rice, Andréa Schmidt Lower Hybrid Wave Induced Rotation on Alcator C-Mod* Ron Parker, Yuri Podpaly, John Rice, Andréa Schmidt *Work supported by USDoE awards DE-FC-99ER551 and DE-AC-7CH373 Abstract Injection of RF power in

More information

Full-wave Electromagnetic Field Simulations in the Lower Hybrid Range of Frequencies

Full-wave Electromagnetic Field Simulations in the Lower Hybrid Range of Frequencies Full-wave Electromagnetic Field Simulations in the Lower Hybrid Range of Frequencies P.T. Bonoli, J.C. Wright, M. Porkolab, PSFC, MIT M. Brambilla, IPP, Garching, Germany E. D Azevedo, ORNL, Oak Ridge,

More information

Hard Xray Diagnostic for Lower Hybrid Current Drive on Alcator C- Mod

Hard Xray Diagnostic for Lower Hybrid Current Drive on Alcator C- Mod Hard Xray Diagnostic for Lower Hybrid Current Drive on Alcator C- Mod J. Liptac, J. Decker, R. Parker, V. Tang, P. Bonoli MIT PSFC Y. Peysson CEA Cadarache APS 3 Albuquerque, NM Abstract A Lower Hybrid

More information

Non-Solenoidal Plasma Startup in

Non-Solenoidal Plasma Startup in Non-Solenoidal Plasma Startup in the A.C. Sontag for the Pegasus Research Team A.C. Sontag, 5th APS-DPP, Nov. 2, 28 1 Point-Source DC Helicity Injection Provides Viable Non-Solenoidal Startup Technique

More information

Progress in Modeling of ARIES ACT Plasma

Progress in Modeling of ARIES ACT Plasma Progress in Modeling of ARIES ACT Plasma And the ARIES Team A.D. Turnbull, R. Buttery, M. Choi, L.L Lao, S. Smith, General Atomics H. St John, G. Staebler C. Kessel Princeton Plasma Physics Laboratory

More information

Evolution of Bootstrap-Sustained Discharge in JT-60U

Evolution of Bootstrap-Sustained Discharge in JT-60U 1 Evolution of Bootstrap-Sustained Discharge in JT-60U Y. Takase 1), S. Ide 2), Y. Kamada 2), H. Kubo 2), O. Mitarai 3), H. Nuga 1), Y. Sakamoto 2), T. Suzuki 2), H. Takenaga 2), and the JT-60 Team 1)

More information

Theory and Simulation Support for Alcator C-Mod

Theory and Simulation Support for Alcator C-Mod Theory and Simulation Support for Alcator C-Mod Paul Bonoli Alcator C-Mod PAC Meeting February 6-8, 2008 Outline Review plans for theory and simulation support for Alcator C-Mod over the next five years

More information

Heating and Current Drive by Electron Cyclotron Waves in JT-60U

Heating and Current Drive by Electron Cyclotron Waves in JT-60U EX/W- Heating and Current Drive by Electron Cyclotron Waves in JT-6U T. Suzuki ), S. Ide ), C. C. Petty ), Y. Ikeda ), K. Kajiwara ), A. Isayama ), K. Hamamatsu ), O. Naito ), M. Seki ), S. Moriyama )

More information

Measurement of lower hybrid waves using microwave scattering technique in Alcator C-Mod

Measurement of lower hybrid waves using microwave scattering technique in Alcator C-Mod Measurement of lower hybrid waves using microwave scattering technique in Alcator C-Mod S. Baek, R. Parker, S. Shiraiwa, A. Dominguez, E. Marmar, G. Wallace, G. J. Kramer* Plasma Science and Fusion Center,

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

Predictive Study on High Performance Modes of Operation in HL-2A 1

Predictive Study on High Performance Modes of Operation in HL-2A 1 1 EX/P-0 Predictive Study on High Performance Modes of Oration in HL-A 1 Qingdi GAO 1), R. V. BUDNY ), Fangzhu LI 1), Jinhua ZHANG 1), Hongng QU 1) 1) Southwestern Institute of Physics, Chengdu, Sichuan,

More information

TH/P6-08. CompX, Del Mar, CA 92014, USA; 2Xcel Engineering, Oak Ridge, TN 37830, USA; 3PSFC-MIT,Cambridge, MA 02139

TH/P6-08. CompX, Del Mar, CA 92014, USA; 2Xcel Engineering, Oak Ridge, TN 37830, USA; 3PSFC-MIT,Cambridge, MA 02139 1 Differences Between QL and Exact Ion Cyclotron Resonant Diffusion R.W. Harvey1, Yu. V. Petrov1, E.F. Jaeger2, P.T. Bonoli3, A. Bader3, and RF-SciDAC Group 1 CompX, Del Mar, CA 92014, USA; 2Xcel Engineering,

More information

TRANSPORT PROGRAM C-MOD 5 YEAR REVIEW MAY, 2003 PRESENTED BY MARTIN GREENWALD MIT PLASMA SCIENCE & FUSION CENTER

TRANSPORT 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 information

Absorption of lower hybrid waves in the scrape off layer of a diverted tokamak

Absorption of lower hybrid waves in the scrape off layer of a diverted tokamak PSFC/JA-1-1 Absorption of lower hybrid waves in the scrape off layer of a diverted tokamak Wallace, G.M, Parker, R.R., Bonoli, P.T., Harvey, R.W.*, Hubbard, A.E., Hughes, J.W., LaBombard, B.L., Meneghini,

More information

Challenges in self-consistent full wave simulations of lower hybrid waves

Challenges in self-consistent full wave simulations of lower hybrid waves Challenges in self-consistent full wave simulations of lower hybrid waves John C. Wright P. T. Bonoli, J-P. Lee - MIT E.J. Valeo, C. K. Phillips - Princeton R. W. Harvey - Comp-X 21st International Conference

More information

OVERVIEW OF THE ALCATOR C-MOD PROGRAM. IAEA-FEC November, 2004 Alcator Team Presented by Martin Greenwald MIT Plasma Science & Fusion Center

OVERVIEW OF THE ALCATOR C-MOD PROGRAM. IAEA-FEC November, 2004 Alcator Team Presented by Martin Greenwald MIT Plasma Science & Fusion Center OVERVIEW OF THE ALCATOR C-MOD PROGRAM IAEA-FEC November, 2004 Alcator Team Presented by Martin Greenwald MIT Plasma Science & Fusion Center OUTLINE C-Mod is compact, high field, high density, high power

More information

Direct drive by cyclotron heating can explain spontaneous rotation in tokamaks

Direct 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 information

Electron Transport and Improved Confinement on Tore Supra

Electron 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 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

Nonthermal Particle and Full-wave Effects on Heating and Current Drive in the ICRF and LHRF Regimes

Nonthermal Particle and Full-wave Effects on Heating and Current Drive in the ICRF and LHRF Regimes Nonthermal Particle and Full-wave Effects on Heating and Current Drive in the ICRF and LHRF Regimes J. C. Wright - MIT D. B. Batchelor, L. A. Berry, M. D. Carter, E. F. Jaeger ORNL Fusion Energy E. D Azevedo

More information

JP Sta,onary Density Profiles in Alcator C Mod

JP Sta,onary Density Profiles in Alcator C Mod JP8.00072 Sta,onary Density Profiles in Alcator C Mod 1 In the absence of an internal particle source, plasma turbulence will impose an intrinsic relationship between an inwards pinch and an outwards diffusion

More information

Theory and Modeling Support for Alcator C-Mod

Theory and Modeling Support for Alcator C-Mod Theory and Modeling Support for Alcator C-Mod Paul Bonoli PSFC, MIT Alcator C-Mod PAC Meeting January 25-27, 2006 Introduction Alcator C-Mod benefits from an extensive program of theory and modeling support

More information

Evolution of Bootstrap-Sustained Discharge in JT-60U

Evolution of Bootstrap-Sustained Discharge in JT-60U EX1-4 Evolution of Bootstrap-Sustained Discharge in JT-60U Y. Takase, a S. Ide, b Y. Kamada, b H. Kubo, b O. Mitarai, c H. Nuga, a Y. Sakamoto, b T. Suzuki, b H. Takenaga, b and the JT-60 Team a University

More information

Rotation and Neoclassical Ripple Transport in ITER

Rotation and Neoclassical Ripple Transport in ITER Rotation and Neoclassical Ripple Transport in ITER Elizabeth J. Paul 1 Matt Landreman 1 Francesca Poli 2 Don Spong 3 Håkan Smith 4 William Dorland 1 1 University of Maryland 2 Princeton Plasma Physics

More information

C-Mod Core Transport Program. Presented by Martin Greenwald C-Mod PAC Feb. 6-8, 2008 MIT Plasma Science & Fusion Center

C-Mod Core Transport Program. Presented by Martin Greenwald C-Mod PAC Feb. 6-8, 2008 MIT Plasma Science & Fusion Center C-Mod Core Transport Program Presented by Martin Greenwald C-Mod PAC Feb. 6-8, 2008 MIT Plasma Science & Fusion Center Practical Motivations for Transport Research Overall plasma behavior must be robustly

More information

Status of RF Modeling in Integrated Simulations

Status of RF Modeling in Integrated Simulations Status of RF Modeling in Integrated Simulations P. T. Bonoli - MIT D. B. Batchelor, L. A. Berry, M. D. Carter, E. F. Jaeger ORNL Fusion Energy E. D Azevedo ORNL Computer Science and Mathematcs (OASCR SSAP)

More information

Low-collisionality density-peaking in GYRO simulations of C-Mod plasmas

Low-collisionality density-peaking in GYRO simulations of C-Mod plasmas Low-collisionality density-peaking in GYRO simulations of C-Mod plasmas D. R. Mikkelsen, M. Bitter, K. Hill, PPPL M. Greenwald, J.W. Hughes, J. Rice, MIT J. Candy, R. Waltz, General Atomics APS Division

More information

ITB Transport Studies in Alcator C-Mod. Catherine Fiore MIT Plasma Science and Fusion Center Transport Task Force March 26th Boulder, Co

ITB Transport Studies in Alcator C-Mod. Catherine Fiore MIT Plasma Science and Fusion Center Transport Task Force March 26th Boulder, Co Transport Studies in Alcator C-Mod Catherine Fiore MIT Plasma Science and Fusion Center Transport Task Force March 26th Boulder, Co With Contributions from: I. Bespamyatnov, P. T. Bonoli*, D. Ernst*, M.

More information

Modeling of Transport Barrier Based on Drift Alfvén Ballooning Mode Transport Model

Modeling of Transport Barrier Based on Drift Alfvén Ballooning Mode Transport Model 9th IAEA TM on H-mode Physics and Transport Barriers Catamaran Resort Hotel, San Diego 3-9-5 Modeling of Transport Barrier Based on Drift Alfvén Ballooning Mode Transport Model A. Fukuyama, M. Uchida and

More information

GTC Simulation of Turbulence and Transport in Tokamak Plasmas

GTC 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 information

Ray-tracing and Fokker Planck modelling of the effect of plasma current on the propagation and absorption of lower hybrid waves

Ray-tracing and Fokker Planck modelling of the effect of plasma current on the propagation and absorption of lower hybrid waves Ray-tracing and Fokker Planck modelling of the effect of plasma current on the propagation and absorption of lower hybrid waves Frédéric Imbeaux, Y. Peysson To cite this version: Frédéric Imbeaux, Y. Peysson.

More information

Analysis of Ion Cyclotron Heating Issues for ITER

Analysis of Ion Cyclotron Heating Issues for ITER 1 TH/P6-8 Analysis of Ion Cyclotron Heating Issues for ITER L.A. Berry 1), D.B. Batchelor 1), P.T. Bonoli 2), M.D. Carter 1), M. Choi 3), W.A. Houlberg 1), D.A. D Ippolito 4), R.W. Harvey 5), E.F. Jaeger

More information

The Advanced Tokamak: Goals, prospects and research opportunities

The Advanced Tokamak: Goals, prospects and research opportunities The Advanced Tokamak: Goals, prospects and research opportunities Amanda Hubbard MIT Plasma Science and Fusion Center with thanks to many contributors, including A. Garafolo, C. Greenfield, C. Kessel,

More information

Overview of Tokamak Rotation and Momentum Transport Phenomenology and Motivations

Overview of Tokamak Rotation and Momentum Transport Phenomenology and Motivations Overview of Tokamak Rotation and Momentum Transport Phenomenology and Motivations Lecture by: P.H. Diamond Notes by: C.J. Lee March 19, 2014 Abstract Toroidal rotation is a key part of the design of ITER

More information

ICRF Mode Conversion Flow Drive on Alcator C-Mod and Projections to Other Tokamaks

ICRF Mode Conversion Flow Drive on Alcator C-Mod and Projections to Other Tokamaks ICRF Mode Conversion Flow Drive on Alcator C-Mod and Projections to Other Tokamaks Y. Lin, J.E. Rice, S.J. Wukitch, M.J. Greenwald, A.E. Hubbard, A. Ince- Cushman, L. Lin, E.S. Marmar, M. Porkolab, M.L.

More information

DIII D I. INTRODUCTION QTYUIOP

DIII D I. INTRODUCTION QTYUIOP I. INTRODUCTION Among the endless surprises that the tokamak plasma has provided us, the formation of the transport barrier in the plasma interior is the least expected and the most interesting one Inside

More information

Two Fluid Dynamo and Edge-Resonant m=0 Tearing Instability in Reversed Field Pinch

Two Fluid Dynamo and Edge-Resonant m=0 Tearing Instability in Reversed Field Pinch 1 Two Fluid Dynamo and Edge-Resonant m= Tearing Instability in Reversed Field Pinch V.V. Mirnov 1), C.C.Hegna 1), S.C. Prager 1), C.R.Sovinec 1), and H.Tian 1) 1) The University of Wisconsin-Madison, Madison,

More information

Time-dependent Modeling of Sustained Advanced Tokamak Scenarios

Time-dependent Modeling of Sustained Advanced Tokamak Scenarios Time-dependent Modeling of Sustained Advanced Tokamak Scenarios T. A. Casper, L. L. LoDestro and L. D. Pearlstein LLNL M. Murakami ORNL L.L. Lao and H.E. StJohn GA We are modeling time-dependent behavior

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

Turbulence and transport reduction with innovative plasma shapes in TCV - correlation ECE measurements and gyrokinetic simulations

Turbulence and transport reduction with innovative plasma shapes in TCV - correlation ECE measurements and gyrokinetic simulations Turbulence and transport reduction with innovative plasma shapes in TCV - correlation ECE measurements and gyrokinetic simulations A. Pochelon, and the TCV team 1 Ecole Polytechnique de Lausanne (EPFL)

More information

Theory and Modeling Support for Alcator C-Mod

Theory and Modeling Support for Alcator C-Mod Theory and Modeling Support for Alcator C-Mod Paul Bonoli PSFC, MIT Alcator C-Mod PAC Meeting February 2-4, 2005 Introduction Alcator C-Mod benefits from an extensive program of theory and modeling support

More information

GA A23713 RECENT ECCD EXPERIMENTAL STUDIES ON DIII D

GA 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 information

GA A23977 DETAILED MEASUREMENTS OF ECCD EFFICIENCY ON DIII D FOR COMPARISON WITH THEORY

GA A23977 DETAILED MEASUREMENTS OF ECCD EFFICIENCY ON DIII D FOR COMPARISON WITH THEORY GA A23977 DETAILED MEASUREMENTS OF ECCD EFFICIENCY ON DIII D by C.C. PETTY, R. PRATER, J. LOHR, T.C. LUCE, R.A. ELLIS, III, R.W. HARVEY, J.E. KINSEY, L.L. LAO, and M.A. MAKOWSKI MAY 2002 DISCLAIMER This

More information

RELATIVISTIC EFFECTS IN ELECTRON CYCLOTRON RESONANCE HEATING AND CURRENT DRIVE

RELATIVISTIC 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 information

Impact of H&CD Technology on DEMO Scenario Choice (Impact of DEMO Scenario on Choice of H&CD Technology)

Impact of H&CD Technology on DEMO Scenario Choice (Impact of DEMO Scenario on Choice of H&CD Technology) Impact of H&CD Technology on DEMO Scenario Choice (Impact of DEMO Scenario on Choice of H&CD Technology) By A.M. Garofalo, R. Prater, V.S. Chan, R.I. Pinsker, G. Staebler, T.S. Taylor, C.P.C. Wong (General

More information

Overview of Alcator C-Mod Research

Overview of Alcator C-Mod Research Overview of C-Mod Research Presented by E.S. Marmar On behalf of the C-Mod Team APS-DPP04 Paper JO3.001 Work Supported by USDoE Office of Fusion Energy Sciences SOL flows impose a toroidal rotation boundary

More information

Energetic-Ion-Driven MHD Instab. & Transport: Simulation Methods, V&V and Predictions

Energetic-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 information

Formation of An Advanced Tokamak Plasma without the Use of Ohmic Heating Solenoid in JT-60U

Formation of An Advanced Tokamak Plasma without the Use of Ohmic Heating Solenoid in JT-60U 1 Formation of An Advanced Tokamak Plasma without the Use of Ohmic Heating Solenoid in JT-60U Y. Takase, 1) S. Ide, 2) S. Itoh, 3) O. Mitarai, 4) O. Naito, 2) T. Ozeki, 2) Y. Sakamoto, 2) S. Shiraiwa,

More information

Operational Phase Space of the Edge Plasma in Alcator C-Mod

Operational Phase Space of the Edge Plasma in Alcator C-Mod Operational Phase Space of the Edge Plasma in B. LaBombard, T. Biewer, M. Greenwald, J.W. Hughes B. Lipschultz, N. Smick, J.L. Terry, Team Contributed talk RO.00008 Presented at the 47th Annual Meeting

More information

Theory and Simulation Support for Alcator C-Mod

Theory and Simulation Support for Alcator C-Mod Theory and Simulation Support for Alcator C-Mod Paul Bonoli Alcator C-Mod PAC Meeting March 2-4, 2011 MIT, PSFC, Cambridge, MA 02139 Outline Review highlights in theory and simulation support for Alcator

More information

Combined LH and ECH Experiments in the FTU Tokamak

Combined 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 information

Recent Experiments of Lower Hybrid Wave-Plasma Coupling and Current

Recent Experiments of Lower Hybrid Wave-Plasma Coupling and Current 1 EXW/P7-3 Recent Experiments of Lower Hybrid Wave-Plasma Coupling and Current Drive in EAST Tokamak B J Ding 1), Y L Qin 1), W K Li 1), M H Li 1), E H Kong 1), A Ekedahl ), Y Peysson ), M Wang 1), H D

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

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

Influence of Beta, Shape and Rotation on the H-mode Pedestal Height

Influence of Beta, Shape and Rotation on the H-mode Pedestal Height Influence of Beta, Shape and Rotation on the H-mode Pedestal Height by A.W. Leonard with R.J. Groebner, T.H. Osborne, and P.B. Snyder Presented at Forty-Ninth APS Meeting of the Division of Plasma Physics

More information

A THEORETICAL AND EXPERIMENTAL INVESTIGATION INTO ENERGY TRANSPORT IN HIGH TEMPERATURE TOKAMAK PLASMAS

A THEORETICAL AND EXPERIMENTAL INVESTIGATION INTO ENERGY TRANSPORT IN HIGH TEMPERATURE TOKAMAK PLASMAS A THEORETICAL AND EXPERIMENTAL INVESTIGATION INTO ENERGY TRANSPORT IN HIGH TEMPERATURE TOKAMAK PLASMAS Presented by D.P. SCHISSEL Presented to APS Centennial Meeting March 20 26, 1999 Atlanta, Georgia

More information

Noninductive Formation of Spherical Tokamak at 7 Times the Plasma Cutoff Density by Electron Bernstein Wave Heating and Current Drive on LATE

Noninductive Formation of Spherical Tokamak at 7 Times the Plasma Cutoff Density by Electron Bernstein Wave Heating and Current Drive on LATE 1 EX/P6-18 Noninductive Formation of Spherical Tokamak at 7 Times the Plasma Cutoff Density by Electron Bernstein Wave Heating and Current Drive on LATE M. Uchida, T. Maekawa, H. Tanaka, F. Watanabe, Y.

More information

Spontaneous Core Toroidal Rotation in Alcator C- Mod L-Mode, H-Mode and ITB Plasmas.

Spontaneous Core Toroidal Rotation in Alcator C- Mod L-Mode, H-Mode and ITB Plasmas. PSFC/JA-8-11 Spontaneous Core Toroidal Rotation in Alcator C- Mod L-Mode, H-Mode and ITB Plasmas. Rice, J.E.; Ince-Cushman, A.C.; Reinke, M.L.; Podpaly, Y.; Greenwald, M.J.; LaBombard, B.S.; Marmar, E.S.

More information

Bounce-averaged gyrokinetic simulations of trapped electron turbulence in elongated tokamak plasmas

Bounce-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 information

Theory and Modeling Support for Alcator C-Mod

Theory and Modeling Support for Alcator C-Mod Theory and Modeling Support for Alcator C-Mod Paul Bonoli Alcator C-Mod PAC Meeting January 24-26, 2007 Introduction Alcator C-Mod benefits from an extensive program of theory and modeling support in many

More information

Integrated Transport Simulation Aiming at Burning Plasmas

Integrated Transport Simulation Aiming at Burning Plasmas Workshop on Transport and Confinement NIFS University, 2006/11/09 Integrated Transport Simulation Aiming at Burning Plasmas A. Fukuyama and M. Honda Department of Nuclear Engineering, Kyoto University

More information

HIGH PERFORMANCE EXPERIMENTS IN JT-60U REVERSED SHEAR DISCHARGES

HIGH PERFORMANCE EXPERIMENTS IN JT-60U REVERSED SHEAR DISCHARGES HIGH PERFORMANCE EXPERIMENTS IN JT-U REVERSED SHEAR DISCHARGES IAEA-CN-9/EX/ T. FUJITA, Y. KAMADA, S. ISHIDA, Y. NEYATANI, T. OIKAWA, S. IDE, S. TAKEJI, Y. KOIDE, A. ISAYAMA, T. FUKUDA, T. HATAE, Y. ISHII,

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

Light Impurity Transport Studies in Alcator C-Mod*

Light Impurity Transport Studies in Alcator C-Mod* Light Impurity Transport Studies in Alcator C-Mod* I. O. Bespamyatnov, 1 W. L. Rowan, 1 C. L. Fiore, 2 K. W. Gentle, 1 R. S. Granet, 2 and P. E. Phillips 1 1 Fusion Research Center, The University of Texas

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

Performance, Heating, and Current Drive Scenarios of ASDEX Upgrade Advanced Tokamak Discharges

Performance, Heating, and Current Drive Scenarios of ASDEX Upgrade Advanced Tokamak Discharges Performance, Heating, and Current Drive Scenarios of ASDEX Upgrade Advanced Tokamak Discharges R. C. Wolf, J. Hobirk, G. Conway, O. Gruber, A. Gude, S. Günter, K. Kirov, B. Kurzan, M. Maraschek, P. J.

More information

STATIONARY, HIGH BOOTSTRAP FRACTION PLASMAS IN DIII-D WITHOUT INDUCTIVE CURRENT CONTROL

STATIONARY, HIGH BOOTSTRAP FRACTION PLASMAS IN DIII-D WITHOUT INDUCTIVE CURRENT CONTROL th IAEA Fusion Energy Conference Vilamoura, Portugal, to 6 November IAEA-CN-6/EX/P-7 STATIONARY, HIGH BOOTSTRAP FRACTION PLASMAS IN DIII-D WITHOUT INDUCTIVE CURRENT CONTROL P.A. POLITZER, A.W. HYATT, T.C.

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

GA A24016 PHYSICS OF OFF-AXIS ELECTRON CYCLOTRON CURRENT DRIVE

GA A24016 PHYSICS OF OFF-AXIS ELECTRON CYCLOTRON CURRENT DRIVE GA A6 PHYSICS OF OFF-AXIS ELECTRON CYCLOTRON CURRENT DRIVE by R. PRATER, C.C. PETTY, R. HARVEY, Y.R. LIN-LIU, J.M. LOHR, and T.C. LUCE JULY DISCLAIMER This report was prepared as an account of work sponsored

More information

Transition From Single Fluid To Pure Electron MHD Regime Of Tearing Instability

Transition From Single Fluid To Pure Electron MHD Regime Of Tearing Instability Transition From Single Fluid To Pure Electron MHD Regime Of Tearing Instability V.V.Mirnov, C.C.Hegna, S.C.Prager APS DPP Meeting, October 27-31, 2003, Albuquerque NM Abstract In the most general case,

More information