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Excitation of Alfve...
Excitation of Alfven eigenmodes by fusion-born alpha-particles in D-He-3 plasmas on JET
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- Kiptily, V. G. (author)
- United Kingdom Atom Energy Author, Culham Sci Ctr, Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England.
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- Kazakov, Ye O. (author)
- LPP ERM KMS, Partner Trilateral Euregio Cluster TEC, Lab Plasma Phys, Brussels, Belgium.
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- Nocente, M. (author)
- Univ Milano Bicocca, Dipartimento Fis, Milan, Italy.;CNR, Inst Plasma Sci & Technol, Milan, Italy.
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- Ongena, J. (author)
- LPP ERM KMS, Partner Trilateral Euregio Cluster TEC, Lab Plasma Phys, Brussels, Belgium.
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- Belli, F. (author)
- ENEA CR Frascati, Unita Tecn Fus, Via E Fermi 45, I-00044 Rome, Italy.
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- Dreval, M. (author)
- Kharkov Inst Phys & Technol, Inst Plasma Phys, Natl Sci Ctr, Kharkov, Ukraine.;Kharkov Natl Univ, Kharkiv, Ukraine.
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- Craciunescu, T. (author)
- Natl Inst Laser Plasma & Radiat Phys, Bucharest, Romania.
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- Eriksson, Jacob, Dr, 1985- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Fitzgerald, M. (author)
- United Kingdom Atom Energy Author, Culham Sci Ctr, Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England.
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- Giacomelli, L. (author)
- CNR, Inst Plasma Sci & Technol, Milan, Italy.
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- Goloborodko, V (author)
- Kyiv Inst Nucl Res, Prospekt Nauky 47, UA-03680 Kiev, Ukraine.
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Iliasova, M. , V (author)
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- Khilkevitch, E. M. (author)
- Ioffe Phys Tech Inst, 26 Politekhn Skaya, St Petersburg 194021, Russia.
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- Rigamonti, D. (author)
- CNR, Inst Plasma Sci & Technol, Milan, Italy.
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- Sahlberg, A. (author)
- Uppsala universitet,Institutionen för fysik och astronomi
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- Salewski, M. (author)
- Tech Univ Denmark, Dept Phys, Lyngby, Denmark.
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- Shevelev, A. E. (author)
- Ioffe Phys Tech Inst, 26 Politekhn Skaya, St Petersburg 194021, Russia.
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- Garcia, J. (author)
- CEA IRFM, F-13115 St Paul Les Durance, France.
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- Oliver, H. J. C. (author)
- United Kingdom Atom Energy Author, Culham Sci Ctr, Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England.
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- Sharapov, S. E. (author)
- United Kingdom Atom Energy Author, Culham Sci Ctr, Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England.
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- Stancar, Z. (author)
- Jozef Stefan Inst, Jamova 39, SI-1000 Ljubljana, Slovenia.
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- Weisen, H. (author)
- Ecole Polytech Fed Lausanne EPFL, Swiss Plasma Ctr SPC, CH-1015 Lausanne, Switzerland.
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United Kingdom Atom Energy Author, Culham Sci Ctr, Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England LPP ERM KMS, Partner Trilateral Euregio Cluster TEC, Lab Plasma Phys, Brussels, Belgium. (creator_code:org_t)
- 2022-04-21
- 2022
- English.
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In: Plasma Physics and Controlled Fusion. - : IOP Publishing Ltd. - 0741-3335 .- 1361-6587. ; 64:6
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Abstract
Subject headings
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- Alfven eigenmode (AE) instabilities driven by alpha-particles have been observed in D-He-3 fusion experiments on the Joint European Torus (JET) with the ITER-like wall. For the efficient generation of fusion alpha-particles from D-He-3 fusion reaction, the three-ion radio frequency scenario was used to accelerate the neutral beam injection 100 keV deuterons to higher energies in the core of mixed D-He-3 plasmas at high concentrations of He-3. A large variety of fast-ion driven magnetohydrodynamic modes were observed, including the elliptical Alfven eigenmodes (EAEs) with mode numbers n = -1 and axisymmetric modes with n = 0 in the frequency range of EAEs. The simultaneous observation of these modes indicates the presence of rather strong alpha-particle population in the plasma with a 'bump-on-tail' shaped velocity distribution. Linear stability analysis and Fokker-Planck calculations support the observations. Experimental evidence of the AEs excitation by fusion-born alpha-particles in the D-He-3 plasma is provided by neutron and gamma-ray diagnostics as well as fast-ion loss measurements. We discuss an experimental proposal for the planned full-scale D-T plasma experiments on JET based on the physics insights gained from these experiments.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- tokamak
- fusion-born alpha-particles
- MHD instabilities
- fast-ion diagnostics
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Kiptily, V. G.
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Kazakov, Ye O.
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Nocente, M.
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Ongena, J.
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Belli, F.
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Dreval, M.
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show more...
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Craciunescu, T.
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Eriksson, Jacob, ...
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Fitzgerald, M.
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Giacomelli, L.
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Goloborodko, V
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Iliasova, M. , V
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Khilkevitch, E. ...
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Rigamonti, D.
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Sahlberg, A.
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Salewski, M.
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Shevelev, A. E.
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Garcia, J.
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Oliver, H. J. C.
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Sharapov, S. E.
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Stancar, Z.
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Weisen, H.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Fusion Plasma an ...
- Articles in the publication
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Plasma Physics a ...
- By the university
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Uppsala University