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Ongena J, Kazakov Y, Baranov Y, Hellesen C, Eriksson J, Johnson T, Kiptily V, Mantsinen M, Nocente M, Bilato R, Cardinali A, Castaldo C, Crombé K, Czarnecka A, Dumont R, Faustin J, Giacomelli L, Goloborodko V, Graves J, Jacquet P, Krawczyk N, Lerche E, Meneses L, Nave M, Patten H, Schneider M, Van Eester D, Weisen H, Wright J. Synergetic heating of D-NBI ions in the vicinity of the mode conversion layer in H-D plasmas in JET with the ITER like wall. EPJ WEB OF CONFERENCES 2017. [DOI: 10.1051/epjconf/201715702006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Sharapov SE, Eriksson LG, Fasoli A, Gorini G, Källne J, Kiptily VG, Korotkov AA, Murari A, Pinches SD, Testa DS, Thomas PR. Chapter 5: Burning Plasma Studies at JET. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst08-a1745] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. E. Sharapov
- Euratom/UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB, United Kingdom
| | - L.-G. Eriksson
- Association Euratom-CEA, CEA/DSM/DRFC, CEA-Cadarache, France
| | - A. Fasoli
- CRPP/EPFL, Association EURATOM-Confédération Suisse, Lausanne, Switzerland
| | - G. Gorini
- Istituto di Fisica del Plasma, EURATOM-ENEA-CNR Association, Milan, Italy
| | - J. Källne
- INF, Uppsala University, Association Euratom-VR, Uppsala, Sweden
| | - V. G. Kiptily
- Euratom/UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB, United Kingdom
| | - A. A. Korotkov
- Euratom/UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB, United Kingdom
| | - A. Murari
- Consorzio RFX-Associazione Euratom-ENEA sulla Fusione, Padova, Italy
| | - S. D. Pinches
- Euratom/UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB, United Kingdom
| | - D. S. Testa
- CRPP/EPFL, Association EURATOM-Confédération Suisse, Lausanne, Switzerland
| | - P. R. Thomas
- Association Euratom-CEA, CEA/DSM/DRFC, CEA-Cadarache, France
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Jacquinot J, Keilhacker M, Rebut PH. Chapter 2: Mission and Highlights of the JET Joint Undertaking: 1978-1999. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst08-a1742] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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McDonald DC, Andrew Y, Huysmans GTA, Loarte A, Ongena J, Rapp J, Saarelma S. Chapter 3: ELMy H-Mode Operation in JET. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst08-a1743] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- D. C. McDonald
- Euratom/UKAEA Fusion Association, Culham Science Centre, Abingdon Oxfordshire OX14 3DB, United Kingdom
| | - Y. Andrew
- Euratom/UKAEA Fusion Association, Culham Science Centre, Abingdon Oxfordshire OX14 3DB, United Kingdom
| | - G. T. A. Huysmans
- Association Euratom-CEA, CEA/DSM/DRFC, Centre de Cadarache 13108 St. Paul lez Durance, France
| | - A. Loarte
- EFDA Close Support Unit Garching, Boltzmannstrasse 2 D-85748 Garching bei München, Germany
| | - J. Ongena
- LPP-ERM0KMS, Euratom-Belgian State Association, Brussels, Belgium
| | - J. Rapp
- Forschungszentrum Jülich GmbH, Euratom Association, Jülich, Germany
| | - S. Saarelma
- Euratom/UKAEA Fusion Association, Culham Science Centre, Abingdon Oxfordshire OX14 3DB, United Kingdom
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Figini L, Garavaglia S, De la Luna E, Farina D, Platania P, Simonetto A, Sozzi C. Measure of electron cyclotron emission at multiple angles in high T(e) plasmas of JET. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2010; 81:10D937. [PMID: 21061483 DOI: 10.1063/1.3502324] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The oblique electron cyclotron emission (ECE) diagnostic installed at JET allows simultaneous analysis of the ECE spectra along three lines of sight (with toroidal angles of 0°, ∼ 10°, and ∼ 20°) and two linear polarizations for each oblique line of sight. The diagnostic is capable of measuring EC emission over the band of 75–800 GHz with 5 ms time resolution and 7.5 GHz spectral resolution, and it is designed to investigate the features of ECE spectra related to electron distribution in the thermal velocity range. Instrumental accuracy was assessed using sources at different temperatures (77–900 K) and with plasma emission. ECE from high temperature plasmas and in the presence of fast ions has been compared to simulations performed with the modeling code SPECE, setting an upper limit to possible discrepancies from thermal emission.
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Affiliation(s)
- L Figini
- Istituto di Fisica del Plasma CNR, Euratom-ENEA-CNR Association, 20125 Milano, Italy.
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Lennholm M, Eriksson LG, Turco F, Bouquey F, Darbos C, Dumont R, Giruzzi G, Jung M, Lambert R, Magne R, Molina D, Moreau P, Rimini F, Segui JL, Song S, Traisnel E. Demonstration of effective control of fast-ion-stabilized sawteeth by electron-cyclotron current drive. PHYSICAL REVIEW LETTERS 2009; 102:115004. [PMID: 19392209 DOI: 10.1103/physrevlett.102.115004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Indexed: 05/27/2023]
Abstract
In a tokamak plasma, sawtooth oscillations in the central temperature, caused by a magnetohydrodynamic instability, can be partially stabilized by fast ions. The resulting less frequent sawtooth crashes can trigger unwanted magnetohydrodynamic activity. This Letter reports on experiments showing that modest electron-cyclotron current drive power, with the deposition positioned by feedback control of the injection angle, can reliably shorten the sawtooth period in the presence of ions with energies >or=0.5 MeV. Certain surprising elements of the results are evaluated qualitatively in terms of existing theory.
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Affiliation(s)
- M Lennholm
- Association EURATOM-CEA, DSM/IRFM, CEA/Cadarache, 13108 St. Paul-lez-Durance, France
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