Chapter 2: Highlights of the physics studies in the FTU

Claude Gormezano, P. Buratti, M.L. Apicella, E. Barbato, G. Bracco, A. Cardinali, C. Castaldo, R. Cesario, S. Cirant, F. Crisanti, Massimo De Benedetti, Basilio Esposito, Domenico Frigione, Lori Gabellieri, Edmondo Giovannozzi, Gustavo Granucci, H. Kroegler, M. Leigheb, M. Marinucci, D. PacellaL. Panaccione, V. Pericoli-Ridolfini, L. Pieroni, S. Podda, F. Romanelli, M. Romanelli, P. Smeulders, C. Sozzi, A.A. Tuccillo, O. Tudisco

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Abstract

The main physics results achieved in the recent years in the Frascati Tokamak Upgrade (FTU) are reviewed. The main focus of research has been the development of performance plasmas at high densities (up to 4 × 1020m-3), high magnetic field (up to 8 T) and plasma current (up to 1.6 MA), that are therefore in a domain of relevance for burning physics experiments such as ITER. The main tools consist in the development of plasma conditioning techniques and the use of various electron heating and current drive systems. Improved confinement regimes have been developed, including (a) the production of steady electron internal transport barriers at high density and electron temperature (up to central electron temperature of 11 keVat a central density of 0.9 × 1020m3), (b) the production of repetitive pellet enhanced plasma modes with deep pellet deposition leading to a substantial increase of the neutron yield (and a record FTU value of the fusion product niTiτEup to 0.8 × 1020m-3keV·s), and (c) the production of radiation improved modes at high magnetic field. Main results on the supporting physics program will also be given in the domain of plasma wave physics (lower hybrid current drive, electron cyclotron resonance frequency, ion Bernstein waves), heat and impurities transport, and magnetohydrodynamic studies.
Original languageEnglish
Pages (from-to)303 - 322+514
JournalFusion Science and Technology
Volume45
Issue number3
Publication statusPublished - May 2004
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Gormezano, C., Buratti, P., Apicella, M. L., Barbato, E., Bracco, G., Cardinali, A., ... Tudisco, O. (2004). Chapter 2: Highlights of the physics studies in the FTU. Fusion Science and Technology, 45(3), 303 - 322+514.