100 likes | 209 Vues
This session presents significant advancements in improved H-mode operations and hybrid scenarios related to ITER. Key highlights include Y. Sakamoto's insights on JT-60U and JET's 2006-2007 campaigns, highlighting long pulse sustainment with optimal confinement parameters. X. Litaudon discusses CRONOS simulations and progress in ASDEX Upgrade. E. Doyle shares hybrid operation outcomes on DIII-D, while V. Mukhovatov addresses accessibility of improved H-mode in ITER. Overall, the session underscores progress in high-density regimes, confinement, and stability, paving the way for future ITER experiments.
E N D
We have the following presentations: • Aim of this session (Y. Sakamoto) • Improved H-mode in JT-60U (Y. Sakamoto) • Hybrid scenario developments in JET in the 2006&2007 campaigns • (X. Litaudon) • CRONOS simulations of ITER Hybrid (X. Litaudon) • Improved H-modes at ASDEX Upgrade (X. Litaudon) • Hybrid operation on DIII-D and projections to ITER (E. Doyle) • Comments on accessibility of improved H-mode in ITER (V. Mukhovatov) • Significant progress was made in the regions of long pulse, high density, Te/Ti, low q95, slow rotation.... Summary of Improved H-mode Session
Recent progress:long sustainment of Hybrid discharge JT-60U JET 0.9MA/1.6T (t=18s) HH~1.1, bN~2.5, ne/nGW~0.48, q95~3.3 Duration of high confinement is limited by enhanced recycling. Strike point sweeping for power spread avoids enhanced recycling without any change in performance.
Recent progress: lower q95 Hybrid regime was extended to low q95. JET: sawtoothing discharge AUG: no sawtooth, fishbones, NTM DIII-D: small sawtooth (JT-60U: no sawtooth no NTM)