High plasma density lower-hybrid current drive in the ftu tokamak

V. Pericoli-Ridolfini, E. Barbato, S. Cirant, H. Kroegler, L. Panaccione, S. Podda, F. Alladio, B. Angelini, M.L. Apicella, G. Apruzzese, L. Bertalot, A. Bertocchi, M. Borra, G. Bracco, A. Bruschi, G. Buceti, P. Buratti, A. Cardinali, C. Centioli, R. CesarioS. Ciattaglia, V. Cocilovo, F. Crisanti, R. De Angelis, F. De Marco, B. Esposito, D. Frigione, L. Gabellieri, G. Gatti, E. Giovannozzi, C. Gourlan, G. Granucci, F. Gravanti, M. Grolli, A. Imparato, M. Leigheb, L. Lovisetto, G. Maffia, G. Maddaluno, M. Marinucci, G. Mazzitelli, P. Micozzi, F. Mirizzi, S. Nowak, F.P. Orsitto, D. Pacella, M. Panella, L. Pieroni, G.B. Righetti, F. Romanelli, F. Santini, M. Sassi, S.E. Segre, A. Simonetto, C. Sozzi, E. Sternini, O. Tudisco, V. Vitale, G. Vlad, N. Tartoni, B. Tilia, A.A. Tuccillo, V. Zanza, M. Zerbini, F. Zonca

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Studies on the current-drive (CD) efficiency have been carried out in the FTU tokamak with 8 GHz lower-hybrid waves up to line-averaged plasma density ¯ne>1×1020m−3. High efficiencies, larger than 0.2×1020m−2A/W, are obtained for clean plasma conditions, with no significant degradation as the density is increased up to the accessibility limit. The electron temperature affects favorably the CD efficiency. Impurity influx never limits the machine operations up to the maximum coupled power of 1.7 MW. © 1999 The American Physical Society.
Original languageEnglish
Pages (from-to)93 - 96
Number of pages4
JournalPhysical Review Letters
Volume82
Issue number1
DOIs
Publication statusPublished - 1999
Externally publishedYes

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Pericoli-Ridolfini, V., Barbato, E., Cirant, S., Kroegler, H., Panaccione, L., Podda, S., Alladio, F., Angelini, B., Apicella, M. L., Apruzzese, G., Bertalot, L., Bertocchi, A., Borra, M., Bracco, G., Bruschi, A., Buceti, G., Buratti, P., Cardinali, A., Centioli, C., ... Zonca, F. (1999). High plasma density lower-hybrid current drive in the ftu tokamak. Physical Review Letters, 82(1), 93 - 96. https://doi.org/10.1103/PhysRevLett.82.93