Study of the likelihood of Alfvénic mode bifurcation in NSTX and predictions for ITER baseline scenarios

Duarte, V. N.; Gorelenkov, N. N.; Schneller, M.; Fredrickson, E. D.; Podesta, M.; Berk, H. L.

doi:10.1088/1741-4326/aab37c

Title: Study of the likelihood of Alfvénic mode bifurcation in NSTX and predictions for ITER baseline scenarios

Journal Article · 02 March 2018 · Nuclear Fusion

DOI: https://doi.org/10.1088/1741-4326/aab37c · OSTI ID:1459542

^[1]; Gorelenkov, N. N. ^[2]; Schneller, M. ^[2]; Fredrickson, E. D. ^[2];

^[2]; Berk, H. L. ^[3]

Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Univ. of São Paulo (Brazil). Inst. of Physics
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Univ. of Texas, Austin, TX (United States). Inst. for Fusion Studies

Rare Alfvénic wave transitions between fixed-frequency and chirping phases are identified in NSTX, where Alfvénic waves are normally observed to exhibit either chirping or avalanching responses. For those transitions, we apply in this paper a criterion (Duarte et al 2017 Nucl. Fusion 57 054001) to predict the nature of fast ion redistribution in tokamaks to be in the convective or diffusive nonlinear regimes. For NSTX discharges in which the transition is not accompanied by changes in the beam deposited power or modifications in the injected radiofrequency power, it has been found that the anomalous fast ion transport is a likely mediator of the bifurcation between the fixed-frequency mode behavior and rapid chirping. For a quantitative assessment, global gyrokinetic simulations of the effects of electrostatic ion temperature gradient turbulence and trapped electron mode turbulence on chirping were pursued using the GTS code. The investigation is extended by means of predictive studies of the probable spectral behavior of Alfvénic eigenmodes for baseline ITER cases consisting of elmy, advanced and hybrid scenarios. Finally, it has been observed that most modes are found to be borderline between the steady and the chirping phases.

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Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); Univ. of Sao Paulo (Brazil)

Sponsoring Organization:: USDOE; São Paulo Research Foundation (FAPESP) (Brazil)

Grant/Contract Number:: AC02-09CH11466; 2012/22830-2; 2014/03289-4

OSTI ID:: 1459542

Journal Information:: Nuclear Fusion, Vol. 58, Issue 8; ISSN 0029-5515

Publisher:: IOP ScienceCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 10 works

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References (62)

Super-thermal particles in hot plasmas—Kinetic models, numerical solution strategies, and comparison to tokamak experiments Lauber, Philipp Physics Reports, Vol. 533, Issue 2 https://doi.org/10.1016/j.physrep.2013.07.001	journal	December 2013
Beam-driven chirping instability in DIII-D Heidbrink, W. W. Plasma Physics and Controlled Fusion, Vol. 37, Issue 9 https://doi.org/10.1088/0741-3335/37/9/002	journal	September 1995
Prediction of nonlinear evolution character of energetic-particle-driven instabilities Duarte, V. N.; Berk, H. L.; Gorelenkov, N. N. Nuclear Fusion, Vol. 57, Issue 5 https://doi.org/10.1088/1741-4326/aa6232	journal	March 2017
Microturbulence driven transport of energetic ions in the ITER steady-state scenario Albergante, M.; Graves, J. P.; Fasoli, A. Nuclear Fusion, Vol. 50, Issue 8 https://doi.org/10.1088/0029-5515/50/8/084013	journal	July 2010
Electron temperature gradient driven turbulence Jenko, F.; Dorland, W.; Kotschenreuther, M. Physics of Plasmas, Vol. 7, Issue 5 https://doi.org/10.1063/1.874014	journal	May 2000
Predictive nonlinear studies of TAE-induced alpha-particle transport in the Q = 10 ITER baseline scenario Fitzgerald, M.; Sharapov, S. E.; Rodrigues, P. Nuclear Fusion, Vol. 56, Issue 11 https://doi.org/10.1088/0029-5515/56/11/112010	journal	July 2016
Large-Scale Simulation of Energetic Particle Driven Magnetohydrodynamic Instabilities in ITER Plasmas Todo, Yasushi; Bierwage, Andreas Plasma and Fusion Research, Vol. 9, Issue 0 https://doi.org/10.1585/pfr.9.3403068	journal	January 2014
Chapter 5: Physics of energetic ions Drive, ITER Physics Expert Group on Energe; Editors, ITER Physics Basis Nuclear Fusion, Vol. 39, Issue 12 https://doi.org/10.1088/0029-5515/39/12/305	journal	December 1999
Anomalous diffusion of energetic particles: connecting experiment and simulations Pueschel, M. J.; Jenko, F.; Schneller, M. Nuclear Fusion, Vol. 52, Issue 10 https://doi.org/10.1088/0029-5515/52/10/103018	journal	September 2012
Nonlinear flow generation by electrostatic turbulence in tokamaks Wang, W. X.; Diamond, P. H.; Hahm, T. S. Physics of Plasmas, Vol. 17, Issue 7 https://doi.org/10.1063/1.3459096	journal	July 2010
Parametric dependence of fast-ion transport events on the National Spherical Torus Experiment Fredrickson, E. D.; Gorelenkov, N. N.; Podesta, M. Nuclear Fusion, Vol. 54, Issue 9 https://doi.org/10.1088/0029-5515/54/9/093007	journal	August 2014
Modeling fast-ion transport during toroidal Alfvén eigenmode avalanches in National Spherical Torus Experiment Fredrickson, E. D.; Crocker, N. A.; Bell, R. E. Physics of Plasmas, Vol. 16, Issue 12 https://doi.org/10.1063/1.3265965	journal	December 2009
Basic physics of Alfvén instabilities driven by energetic particles in toroidally confined plasmas Heidbrink, W. W. Physics of Plasmas, Vol. 15, Issue 5 https://doi.org/10.1063/1.2838239	journal	May 2008
Local and global kinetic stability analysis of Alfvén eigenmodes in the 15 MA ITER scenario Lauber, Ph Plasma Physics and Controlled Fusion, Vol. 57, Issue 5 https://doi.org/10.1088/0741-3335/57/5/054011	journal	April 2015
Energetic ions in ITER plasmas Pinches, S. D.; Chapman, I. T.; Lauber, Ph. W. Physics of Plasmas, Vol. 22, Issue 2 https://doi.org/10.1063/1.4908551	journal	February 2015
Status of the ITER heating neutral beam system Hemsworth, R.; Decamps, H.; Graceffa, J. Nuclear Fusion, Vol. 49, Issue 4 https://doi.org/10.1088/0029-5515/49/4/045006	journal	March 2009
Resonance broadened quasi-linear (RBQ) model for fast ion distribution relaxation due to Alfvénic eigenmodes Gorelenkov, N. N.; Duarte, V. N.; Podesta, M. Nuclear Fusion, Vol. 58, Issue 8 https://doi.org/10.1088/1741-4326/aac72b	journal	June 2018
Saturation of alpha particle driven instability in Tokamak Fusion Test Reactor Gorelenkov, N. N.; Chen, Y.; White, R. B. Physics of Plasmas, Vol. 6, Issue 2 https://doi.org/10.1063/1.873216	journal	February 1999
Anomalous transport of energetic particles in ITER relevant scenarios Albergante, M.; Graves, J. P.; Fasoli, A. Physics of Plasmas, Vol. 16, Issue 11 https://doi.org/10.1063/1.3257913	journal	November 2009
Systematic linear-stability assessment of Alfvén eigenmodes in the presence of fusion α-particles for ITER-like equilibria Rodrigues, P.; Figueiredo, A.; Ferreira, J. Nuclear Fusion, Vol. 55, Issue 8 https://doi.org/10.1088/0029-5515/55/8/083003	journal	June 2015
Sensitivity of alpha-particle-driven Alfvén eigenmodes to q-profile variation in ITER scenarios Rodrigues, P.; Figueiredo, A. C. A.; Borba, D. Nuclear Fusion, Vol. 56, Issue 11 https://doi.org/10.1088/0029-5515/56/11/112006	journal	July 2016
Resonance frequency broadening of wave-particle interaction in tokamaks due to Alfvénic eigenmode Meng, G.; Gorelenkov, N. N.; Duarte, V. N. Nuclear Fusion, Vol. 58, Issue 8 https://doi.org/10.1088/1741-4326/aaa918	journal	June 2018
Comprehensive evaluation of the linear stability of Alfvén eigenmodes driven by alpha particles in an ITER baseline scenario Figueiredo, A. C. A.; Rodrigues, P.; Borba, D. Nuclear Fusion, Vol. 56, Issue 7 https://doi.org/10.1088/0029-5515/56/7/076007	journal	June 2016
Nonlinear simulation of toroidal Alfvén eigenmode with microturbulence-induced radial diffusion Lang, Jianying; Fu, Guo-Yong Physics of Plasmas, Vol. 18, Issue 5 https://doi.org/10.1063/1.3574503	journal	May 2011
Transition from weak to strong energetic ion transport in burning plasmas Zonca, F.; Briguglio, S.; Chen, L. Nuclear Fusion, Vol. 45, Issue 6 https://doi.org/10.1088/0029-5515/45/6/009	journal	May 2005
Suppression of nonlinear frequency-sweeping of resonant interchange modes in a magnetic dipole with applied radio frequency fields Maslovsky, D.; Levitt, B.; Mauel, M. E. Physics of Plasmas, Vol. 10, Issue 5 https://doi.org/10.1063/1.1557072	journal	May 2003
Energetic ion transport by microturbulence is insignificant in tokamaks Austin, M. E.; Bass, E. M.; Budny, R. V. Physics of Plasmas, Vol. 20, Issue 5 https://doi.org/10.1063/1.4803930	journal	May 2013
Fast particle finite orbit width and Larmor radius effects on low- n toroidicity induced Alfvén eigenmode excitation Gorelenkov, N. N.; Cheng, C. Z.; Fu, G. Y. Physics of Plasmas, Vol. 6, Issue 7 https://doi.org/10.1063/1.873545	journal	July 1999
Alfvénic instabilities driven by fusion generated alpha particles in ITER scenarios Vlad, G.; Briguglio, S.; Fogaccia, G. Nuclear Fusion, Vol. 46, Issue 1 https://doi.org/10.1088/0029-5515/46/1/001	journal	December 2005
Theory and observation of the onset of nonlinear structures due to eigenmode destabilization by fast ions in tokamaks Duarte, V. N.; Berk, H. L.; Gorelenkov, N. N. Physics of Plasmas, Vol. 24, Issue 12 https://doi.org/10.1063/1.5007811	journal	December 2017
Energetic particle physics in fusion research in preparation for burning plasma experiments Gorelenkov, N. N.; Pinches, S. D.; Toi, K. Nuclear Fusion, Vol. 54, Issue 12 https://doi.org/10.1088/0029-5515/54/12/125001	journal	November 2014
Effect of dynamical friction on nonlinear energetic particle modes Lilley, M. K.; Breizman, B. N.; Sharapov, S. E. Physics of Plasmas, Vol. 17, Issue 9 https://doi.org/10.1063/1.3486535	journal	September 2010
Confinement and local transport in the National Spherical Torus Experiment (NSTX) Kaye, S. M.; Levinton, F. M.; Stutman, D. Nuclear Fusion, Vol. 47, Issue 7 https://doi.org/10.1088/0029-5515/47/7/001	journal	June 2007
Gyro-kinetic simulation of global turbulent transport properties in tokamak experiments Wang, W. X.; Lin, Z.; Tang, W. M. Physics of Plasmas, Vol. 13, Issue 9 https://doi.org/10.1063/1.2338775	journal	September 2006
Beam anisotropy effect on Alfvén eigenmode stability in ITER-like plasmas Gorelenkov, N. N.; Berk, H. L.; Budny, R. V. Nuclear Fusion, Vol. 45, Issue 4 https://doi.org/10.1088/0029-5515/45/4/002	journal	March 2005
Numerical modelling of electromagnetic turbulent transport of energetic ions in burning plasmas Albergante, M.; Graves, J. P.; Fasoli, A. Plasma Physics and Controlled Fusion, Vol. 53, Issue 5 https://doi.org/10.1088/0741-3335/53/5/054002	journal	March 2011
High-n ideal and resistive shear Alfvén waves in tokamaks Cheng, C. Z.; Chen, Liu; Chance, M. S. Annals of Physics, Vol. 161, Issue 1 https://doi.org/10.1016/0003-4916(85)90335-5	journal	April 1985
Spontaneous hole–clump pair creation Berk, H. L.; Breizman, B. N.; Candy, J. Physics of Plasmas, Vol. 6, Issue 8 https://doi.org/10.1063/1.873550	journal	August 1999
Nonlinear energetic particle transport in the presence of multiple Alfvénic waves in ITER Schneller, M.; Lauber, Ph; Briguglio, S. Plasma Physics and Controlled Fusion, Vol. 58, Issue 1 https://doi.org/10.1088/0741-3335/58/1/014019	journal	November 2015
Comparisons of predicted plasma performance in ITER H-mode plasmas with various mixes of external heating Budny, R. V. Nuclear Fusion, Vol. 49, Issue 8 https://doi.org/10.1088/0029-5515/49/8/085008	journal	July 2009
The behaviour of fast ions in tokamak experiments Heidbrink, W. W.; Sadler, G. J. Nuclear Fusion, Vol. 34, Issue 4 https://doi.org/10.1088/0029-5515/34/4/I07	journal	April 1994
Physics of Alfvén waves and energetic particles in burning plasmas Chen, Liu; Zonca, Fulvio Reviews of Modern Physics, Vol. 88, Issue 1 https://doi.org/10.1103/RevModPhys.88.015008	journal	March 2016
Enhanced Localized Energetic-Ion Losses Resulting from Single-Pass Interactions with Alfvén Eigenmodes Chen, X.; Austin, M. E.; Fisher, R. K. Physical Review Letters, Vol. 110, Issue 6 https://doi.org/10.1103/PhysRevLett.110.065004	journal	February 2013
Convective and Diffusive Energetic Particle Losses Induced by Shear Alfvén Waves in the ASDEX Upgrade Tokamak García-Muñoz, M.; Hicks, N.; van Voornveld, R. Physical Review Letters, Vol. 104, Issue 18 https://doi.org/10.1103/PhysRevLett.104.185002	journal	May 2010
Nonlinear Dynamics of a Driven Mode near Marginal Stability Berk, H. L.; Breizman, B. N.; Pekker, M. Physical Review Letters, Vol. 76, Issue 8 https://doi.org/10.1103/PhysRevLett.76.1256	journal	February 1996
Spontaneous hole-clump pair creation in weakly unstable plasmas Berk, H. L.; Breizman, B. N.; Petviashvili, N. V. Physics Letters A, Vol. 234, Issue 3 https://doi.org/10.1016/S0375-9601(97)00523-9	journal	September 1997
Observation of Nonlinear Frequency-Sweeping Suppression with rf Diffusion Maslovsky, D.; Levitt, B.; Mauel, M. E. Physical Review Letters, Vol. 90, Issue 18 https://doi.org/10.1103/PhysRevLett.90.185001	journal	May 2003
Beta-dependence of energetic particle-driven instabilities in spherical tokamaks Gryaznevich, M. P.; Sharapov, S. E. Plasma Physics and Controlled Fusion, Vol. 46, Issue 7 https://doi.org/10.1088/0741-3335/46/7/S02	journal	May 2004
Mitigation of Alfvén Activity in a Tokamak by Externally Applied Static 3D Fields Bortolon, A.; Heidbrink, W. W.; Kramer, G. J. Physical Review Letters, Vol. 110, Issue 26 https://doi.org/10.1103/PhysRevLett.110.265008	journal	June 2013
Transport of Energetic Particles by Microturbulence in Magnetized Plasmas Zhang, Wenlu; Lin, Zhihong; Chen, Liu Physical Review Letters, Vol. 101, Issue 9 https://doi.org/10.1103/PhysRevLett.101.095001	journal	August 2008
Electrostatic and magnetic transport of energetic ions in turbulent plasmas Hauff, T.; Pueschel, M. J.; Dannert, T. Physical Review Letters, Vol. 102, Issue 7 https://doi.org/10.1103/PhysRevLett.102.075004	journal	February 2009
Toroidal mode structure in weak and reversed magnetic shear plasmas and its role in the internal transport barrier Kishimoto, Y.; Kim, J-Y; Horton, W. Plasma Physics and Controlled Fusion, Vol. 41, Issue 3A https://doi.org/10.1088/0741-3335/41/3A/060	journal	January 1999
Kinetic extensions of magnetohydrodynamics for axisymmetric toroidal plasmas Cheng, C. Z. Physics Reports, Vol. 211, Issue 1 https://doi.org/10.1016/0370-1573(92)90166-W	journal	February 1992
Alfvén eigenmode evolution computed with the VENUS and KINX codes for the ITER baseline scenario Isaev, M. Yu.; Medvedev, S. Yu.; Cooper, W. A. Plasma Physics Reports, Vol. 43, Issue 2 https://doi.org/10.1134/S1063780X17020052	journal	February 2017
Line broadened quasi-linear burst model [fusion plasma] Berk, H. L.; Breizman, B. N.; Fitzpatrick, J. Nuclear Fusion, Vol. 35, Issue 12 https://doi.org/10.1088/0029-5515/35/12/I30	journal	December 1995
Advanced scenarios for ITER operation Sips, A. C. C.; Operation, for the Steady State; Activity, the Transport Physics topical group Plasma Physics and Controlled Fusion, Vol. 47, Issue 5A https://doi.org/10.1088/0741-3335/47/5A/003	journal	April 2005
The behaviour of fast ions in tokamak experiments Heidbrink, W. W.; Sadler, G. J. Nuclear Fusion, Vol. 35, Issue 2 https://doi.org/10.1088/0029-5515/35/2/514	journal	February 1995
Nonlinear Energetic Particle Transport in the Presence of Multiple Alfvenic Waves in ITER Schneller, Mirjam; Lauber, Philipp; Briguglio, Sergio arXiv https://doi.org/10.48550/arxiv.1509.04010	text	January 2015
Comprehensive evaluation of the linear stability of Alfvén eigenmodes driven by alpha particles in an ITER baseline scenario Figueiredo, A. C. A.; Rodrigues, P.; Borba, D. arXiv https://doi.org/10.48550/arxiv.1601.06621	text	January 2016
Prediction of Nonlinear Evolution Character of Energetic-Particle-Driven Instabilities Duarte, Vinicius; Berk, Herbert; Gorelenkov, Nikolai arXiv https://doi.org/10.48550/arxiv.1610.05059	text	January 2016
Advanced scenarios for ITER operation Sips, Adrianus C. C. arXiv https://doi.org/10.48550/arxiv.physics/0410263	text	January 2004
Parameters for minimal unsatisfiability: Smarandache primitive numbers and full clauses Kullmann, Oliver; Zhao, Xishun arXiv https://doi.org/10.48550/arxiv.1505.02318	preprint	January 2015

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