1 / 7

Draft outline for “Recent Physics Results from the National Spherical Torus”

Draft outline for “Recent Physics Results from the National Spherical Torus”. IAEA overview OV/2-4 Last talk in morning session - Tuesday, 10/17 Just before coffee break, expect full attendance  25 mins total  16-18 viewgraphs Outline presented here  20 viewgraphs. MHD – 4 slides.

channing-tyler
Télécharger la présentation

Draft outline for “Recent Physics Results from the National Spherical Torus”

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Draft outline for “Recent Physics Results from the National Spherical Torus” • IAEA overview OV/2-4 • Last talk in morning session - Tuesday, 10/17 • Just before coffee break, expect full attendance  • 25 mins total  16-18 viewgraphs • Outline presented here  20 viewgraphs

  2. MHD – 4 slides • Active RWM stabilization (Sabbagh) • Methodology, compare to DIII-D, extrapolate to ITER • NTV theory validation (Zhu/Sabbagh) • Theory description, comparison to expt for n=1,3 hi/low bN • RWM critical rotation physics (Sontag) • Scalings with VA, collisionality, q, etc. • Error field ID and correction (Menard) • Coil motion – relevant to ITER? • Size scaling of LM threshold for ITER (?)

  3. Transport – 4 slides • Confinement scaling studies (Kaye) • BT scaling controlled by electrons • IP scaling controlled by ions • GTC neo – NC ion thermal diffusivity vs. NCLASS • ETG modeling – Kim… or GYRO from Mikkelsen? • RS vs. “monotonic” L-mode (Levinton/Yuh) • Chi-e vs q-shear, or other – do we have a story? • Smith/Park – High-k measurements • Transient transport response (Stutman) • SXR diagnostic + pellet perturbations • Profile stiffness, critical gradient physics

  4. Boundary (3 slides) • Intermittent filament physics/recipr. probe (Boedo) • Density blobs & holes, intermittency • Blob modeling (Myra & Maqueda) • Partial div. detachment, radiative divertor (Vlad) • Heat fluxes, impact of D2 injections on performance • Pedestal structure vs. aspect ratio (Maingi) • need edge MPTS channels • Quartz microbalance data (Skinner) • extrapolation to tritium retention for ITER

  5. ISD/Hybrid Physics (3 slides) • MHD effect on current redistribution • Current profile / MHD analysis (Menard) • Effect on fast ion distribution function • Neutron rate and NPA (Medley) • SSNPA (Liu) • Effect of lithium on profiles/performance • Projections to higher fNI? • Shape control improvements/benefits • ELM size vs. controlled magnetic balance • High elongation control – implications for ST

  6. Fast ion physics (3 slides) • TAE structure and dynamics • Mode w, dn from reflectometer (Crocker) • Compare to theory M3D/NOVA-K Fu/Gorelenkov • 3-wave coupling (EPMs, TAEs and CAEs/GAEs) • Hole-clump physics (Berk/Breizman theory) • HHFWno impact on fishbone or chirping TAE • Does have impact on continuous TAE (Heidbrink) • NBI + HHFW  CQL3D  fast-ion distribution • More recent discharges/analysis with MSE (Eric)

  7. Ramp-up/Start-up (3 slides) • HHFW heating physics (Hosea/Wilgen) • Improvements with higher B, higher k-parallel • PDI – compare reflectometer vs. Langmuir • HHFW/NBI into low IP plasma (Kessel) • High fBS during HHFW H-mode • Transient CHI improvements (Raman) • 160kA closed flux • Fast camera images + reconstructions • X. Tang modeling – projections to higher IP

More Related