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Perturbative studies of toroidal momentum transport using neutral beam injection modulation in the Joint European Torus: Experimental results, analysis methodology, and first principles modeling (Articolo in rivista)

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Perturbative studies of toroidal momentum transport using neutral beam injection modulation in the Joint European Torus: Experimental results, analysis methodology, and first principles modeling (Articolo in rivista) (literal)

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Mantica P., Tala T., Ferreira J. S., Peeters A. G., Salmi A., Strintzi D., Weiland J., Brix M., Giroud C., Corrigan G., Naulin V., Tardini G., Zastrow K.-D. and JET-EFDA Contributors (2010)
Perturbative studies of toroidal momentum transport using neutral beam injection modulation in the Joint European Torus: Experimental results, analysis methodology, and first principles modeling
in Physics of plasmas; American Institute of Physics, Woodbury [NY] (Stati Uniti d'America)
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Mantica P., Tala T., Ferreira J. S., Peeters A. G., Salmi A., Strintzi D., Weiland J., Brix M., Giroud C., Corrigan G., Naulin V., Tardini G., Zastrow K.-D. and JET-EFDA Contributors (literal)

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1. EURATOM ENEA CNR Assoc, Ist Fis Plasma, I-20125 Milan, Italy 2. Assoc EURATOM Tekes, VTT, FIN-02044 Espoo, Finland 3. Assoc EURATOM IST, Ctr Fusao Nucl, P-1049001 Lisbon, Portugal 4. Univ Warwick, Ctr Fus Space & Astrophys, Coventry 7AL, W Midlands, England 5. Helsinki Univ Technol, Assoc EURATOM Tekes, FIN-02150 Helsinki, Finland 6. Natl Tech Univ Athens, Assoc Euratom Hellen Republ, GR-15773 Athens, Greece 7. Euratom VR Assoc, SE-41296 Gothenburg, Sweden 8. Chalmers, SE-41296 Gothenburg, Sweden 9. Euratom CCFE Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England 10. DTU, Assoc Euratom Riso, DK-4000 Roskilde, Denmark 11. EURATOM MPI Assoc, Max Planck Inst Plasmaphys, D-85748 Garching, Germany 12. JET EFDA, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England (literal)

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Perturbative studies of toroidal momentum transport using neutral beam injection modulation in the Joint European Torus: Experimental results, analysis methodology, and first principles modeling (literal)

Abstract

Perturbative experiments have been carried out in the Joint European Torus [Fusion Sci. Technol. 53 (4) (2008)] in order to identify the diffusive and convective components of toroidal momentum transport. The torque source was modulated either by modulating tangential neutral beam power or by modulating in antiphase tangential and normal beams to produce a torque perturbation in the absence of a power perturbation. The resulting periodic perturbation in the toroidal rotation velocity was modeled using time-dependent transport simulations in order to extract empirical profiles of momentum diffusivity and pinch. Details of the experimental technique, data analysis, and modeling are provided. The momentum diffusivity in the core region (0.2

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