Reversed shear Alfvén eigenmodes (RSAE) that were observed in the Joint European Torus (JET) [P. H. Rebut and B. E. Keen, Fusion Technol.11, 13 (1987)] and DIII-D [J. L. Luxon, Nucl. Fusion42, 614 (2002)] are studied with the ideal magnetohydrodynamic code NOVA-K [C. Z. Cheng, Phys. Rep.211, 1 (1992)]. It was found that the frequency behavior of the RSAEs can be described accurately by the NOVA-K code when plasma compressibility effects and toroidal plasma rotation are taken into account. For the mode activity on JET, the calculated drive exceeds the mode damping rate, consistent with experimental observations, while on DIII-D the growth rate from neutral beam ions for modes with high toroidal mode numbers is insufficient to account for the excitation of the modes and a major part of the drive comes from the background plasma.
Skip Nav Destination
Article navigation
May 2006
Research Article|
May 08 2006
Interpretation of core localized Alfvén eigenmodes in DIII-D and Joint European Torus reversed magnetic shear plasmasa) Available to Purchase
G. J. Kramer;
G. J. Kramer
c)
Princeton Plasma Physics Laboratories
, P.O. Box 451, Princeton, New Jersey 08543
Search for other works by this author on:
R. Nazikian;
R. Nazikian
Princeton Plasma Physics Laboratories
, P.O. Box 451, Princeton, New Jersey 08543
Search for other works by this author on:
B. Alper;
B. Alper
Euratom/UKAEA Fusion Association
, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
Search for other works by this author on:
M. de Baar;
M. de Baar
Euratom/UKAEA Fusion Association
, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
Search for other works by this author on:
H. L. Berk;
H. L. Berk
Institute for Fusion Studies
, Austin, Texas 78712
Search for other works by this author on:
G.-Y. Fu;
G.-Y. Fu
Princeton Plasma Physics Laboratories
, P.O. Box 451, Princeton, New Jersey 08543
Search for other works by this author on:
N. N. Gorelenkov;
N. N. Gorelenkov
Princeton Plasma Physics Laboratories
, P.O. Box 451, Princeton, New Jersey 08543
Search for other works by this author on:
G. McKee;
G. McKee
University of Wisconsin
, Madison, Wisconsin 53706
Search for other works by this author on:
S. D. Pinches;
S. D. Pinches
Max Planck Institute of Plasmaphysics
, Euratom Association, Garching 85748, Germany
Search for other works by this author on:
T. L. Rhodes;
T. L. Rhodes
Institute of Plasma and Fusion Research, Electrical Engineering Department,
University of California
, Los Angeles, California 90024
Search for other works by this author on:
S. E. Sharapov;
S. E. Sharapov
Euratom/UKAEA Fusion Association
, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
Search for other works by this author on:
W. M. Solomon;
W. M. Solomon
Princeton Plasma Physics Laboratories
, P.O. Box 451, Princeton, New Jersey 08543
Search for other works by this author on:
M. A. van Zeeland;
M. A. van Zeeland
Oak Ridge Institute for Science and Education
, Oak Ridge, Tennessee 37831
Search for other works by this author on:
JET EFDA Contributors
JET EFDA Contributors
d)
Euratom/UKAEA Fusion Association
, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
Search for other works by this author on:
G. J. Kramer
c)
Princeton Plasma Physics Laboratories
, P.O. Box 451, Princeton, New Jersey 08543
R. Nazikian
Princeton Plasma Physics Laboratories
, P.O. Box 451, Princeton, New Jersey 08543
B. Alper
Euratom/UKAEA Fusion Association
, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
M. de Baar
Euratom/UKAEA Fusion Association
, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
H. L. Berk
Institute for Fusion Studies
, Austin, Texas 78712
G.-Y. Fu
Princeton Plasma Physics Laboratories
, P.O. Box 451, Princeton, New Jersey 08543
N. N. Gorelenkov
Princeton Plasma Physics Laboratories
, P.O. Box 451, Princeton, New Jersey 08543
G. McKee
University of Wisconsin
, Madison, Wisconsin 53706
S. D. Pinches
Max Planck Institute of Plasmaphysics
, Euratom Association, Garching 85748, Germany
T. L. Rhodes
Institute of Plasma and Fusion Research, Electrical Engineering Department,
University of California
, Los Angeles, California 90024
S. E. Sharapov
Euratom/UKAEA Fusion Association
, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
W. M. Solomon
Princeton Plasma Physics Laboratories
, P.O. Box 451, Princeton, New Jersey 08543
M. A. van Zeeland
Oak Ridge Institute for Science and Education
, Oak Ridge, Tennessee 37831
JET EFDA Contributors
d)
Euratom/UKAEA Fusion Association
, Culham Science Centre, Abingdon OX14 3DB, United Kingdomc)
Invited speaker. Electronic address: [email protected]
d)
See Appendix of J. Pamela et al., Fusion Energy 2004 (Proc. 20th Int. Conf. Vilamoura, 2004) IAEA, Vienna (2004).
a)
Paper QI1 6, Bull. Am. Phys. Soc. 50, 259 (2005).
Phys. Plasmas 13, 056104 (2006)
Article history
Received:
October 25 2005
Accepted:
February 20 2006
Citation
G. J. Kramer, R. Nazikian, B. Alper, M. de Baar, H. L. Berk, G.-Y. Fu, N. N. Gorelenkov, G. McKee, S. D. Pinches, T. L. Rhodes, S. E. Sharapov, W. M. Solomon, M. A. van Zeeland, JET EFDA Contributors; Interpretation of core localized Alfvén eigenmodes in DIII-D and Joint European Torus reversed magnetic shear plasmas. Phys. Plasmas 1 May 2006; 13 (5): 056104. https://doi.org/10.1063/1.2186049
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Summary report from the mini-conference on Digital Twins for Fusion Research
D. P. Schissel, R. M. Nazikian, et al.
A future of inertial confinement fusion without laser-plasma instabilities
D. H. Froula, C. Dorrer, et al.
Simulation of an inductively coupled plasma with a two-dimensional Darwin particle-in-cell code
Dmytro Sydorenko, Igor D. Kaganovich, et al.
Related Content
Coupling of global toroidal Alfvén eigenmodes and reversed shear Alfvén eigenmodes in DIII-D
Phys. Plasmas (March 2007)
Measurements and modeling of Alfvén eigenmode induced fast ion transport and loss in DIII-D and ASDEX Upgrade
Phys. Plasmas (May 2011)
Excitation of Alfvén eigenmodes by low energy beam ions in the DIII-D and JET tokamaks
Phys. Plasmas (February 2008)
Phase contrast imaging measurements of reversed shear Alfvén eigenmodes during sawteeth in Alcator C-Mod
Phys. Plasmas (March 2009)
Gyrokinetic simulation of global and local Alfvén eigenmodes driven by energetic particles in a DIII-D discharge
Phys. Plasmas (January 2013)