1 / 6

HHFW Driven H Mode Revisited

HHFW Driven H Mode Revisited. B.P. LeBlanc and the usual suspects HHFW/EBW ET 14-Jan-2004. Goals. Reproduce HHFW H-mode plasmas Expand operational range So far achieved: I p ≈ 0.4 - 0.5 MA, B T ≈ 0.37 - 0.45 T, low density, LSN New range sought:

alban
Download Presentation

HHFW Driven H Mode Revisited

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. HHFW Driven H Mode Revisited B.P. LeBlanc and the usual suspects HHFW/EBW ET 14-Jan-2004

  2. Goals • Reproduce HHFW H-mode plasmas • Expand operational range • So far achieved: • Ip ≈ 0.4 - 0.5 MA, BT≈ 0.37 - 0.45 T, low density, LSN • New range sought: • Ip ≈ 0.4 - 1.0 MA, BT≈ 0.35 - 0.6 T, medium to high density, preferably DND • Document HHFW H-mode plasmas • Produce useful plasma for long pulse operation and HFW + NBI operation

  3. Reproduce HHFW H-mode Plasmas • Initial plasma • Use DND developed during HHFW conditioning, • Or, start with 109759 LSN and moves toward DND

  4. Expand Experimental Range • Need go to go high Ip, ≥ 1.0 MA, since want this plasma to be eventual NBI target • Want tall DND, which probably needs high Ip anyway • 0.35 - 0.6 T, but likely limited to 0.45 T for a while • Obtain high density without interfering with RF • Investigate high field side fueling • Supersonic gas injector • K// = 14m-1, then 7 m-1.

  5. Document Plasma • CHERS with NBI 10-ms blips, every ≥ 0.05 s • Edge rotation diagnostic, ERD • vf and vq, for carbon impurity, get Er • MPTS, Ha, SXR, Neutrons • UCLA reflectometer in fluctuation mode • ORNL reflectometer ? • Gas puff imaging, GPI • X-point tangential view • UCSD fast probe ? • Ha cameras, x-point and center stack midplane

  6. Anticipated Deliverables • HHFW H-mode plasmas • Success if ≥ 100 kJ • DND HHFW H-mode plasmas suitable for NBI into HHFW H-mode experiments • Target for long duration HHFW plasma operation (J.R. Wilson) • Transport analysis (TRANSP, CURRAY) • m-stability analysis • ITERPby(2) H-mode scaling • Another case study for electron transport

More Related