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(EXP2/01) Energy Transport Analysis of High Temperature and High Density FTU Plasma Discharges

G. Bracco, P. Buratti, C. Cianfarani3, S. Cirant1, F. Crisanti, D. Frigione, G. Granucci1, M. Marinucci, C. Sozzi1, O. Tudisco, V. Zanza, M. Zerbini, L. Acitelli, F. Alladio, B. Angelini, M. L. Apicella, G. Apruzzese, E. Barbato, L. Bertalot, A. Bertocchi, M. Borra, A. Bruschi1, G. Buceti, A. Cardinali, C. Centioli, R. Cesario, S. Ciattaglia, V. Cocilovo, R. de Angelis, F. de Marco, B. Esposito, L. Gabellieri, G. Gatti, E. Giovannozzi, C. Gourlan, M. Grolli, A. Imparato, H. Kroegler, M. Leigheb, L. Lovisetto, G. Maddaluno, G. Maffia, S. Mancuso, G. Mazzitelli, P. Micozzi, F. Mirizzi, S. Nowak1, F. P. Orsitto, D. Pacella, L. Panaccione, M. Panella, V. Pericoli-Ridolfini, L. Pieroni, S. Podda, G. B. Righetti, F. Romanelli, F. Santini, M. Sassi, S. E. Segre2, A. Simonetto1, S. Sternini, N. Tartoni, A. A. Tuccillo, V. Vitale, G. Vlad, F. Zonca

Associazione Euratom-ENEA sulla Fusione, CRE Frascati, CP 65 00044, Frascati, Roma Italy
1 Associazione Euratom-ENEA-CNR, Istituto di Fisica del Plasma, Milano, Italy
2 INFM and Dipartimento di Fisica, II Universitá di Roma `Tor Vergata', Rome, Italy
3 ENEA fellow

Abstract.  Some FTU plasma scenarios are characterised either by high electron temperature, produced by ECRH, or high densities, by pellet injection. This paper discusses the energy transport characteristics of these configurations and compares them with the predictions of mixed Bohm/Gyro-Bohm model that has been recently proposed. The Gyro-Bohm term of the model overestimate the measured energy transport in the conditions when it becomes relevant. The Bohm term alone seems to simulate correctly the experimental results, with exception of the post-pellet enhanced confinement.

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IAEA 2001