nstx contributions to itpa l- and h-mode global databases s. m. kaye 30 july 2003

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NSTX Contributions to ITPA L- and H-mode Global Databases S. M. Kaye 30 July 2003

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  • NSTX Contributions to ITPA L- and H-mode Global DatabasesS. M. Kaye

    30 July 2003

  • Initial contributions based on analysis using iz.dat CHERS dataSince then, additional atomic physics corrections, nc profilesContributions will be updated based on newest analysisData contributions include detailed global shot info at toiMost notably fast ion energy, lossesDetermination of tth (TRANSP analysis)Data include info from waveforms, MPTS, CHERS, EFIT(01), TRANSPTime smoothing over 15 msecZeff from waveforms, or =1.5 (flat profile)Initial contribution limited to 15 discharges8-L, 7-HH-mode criterion: discharge exhibits sudden decrease in Da not associated with geometry changes, MHD, etc.

  • Initial set of shots chosen by following criteriaGood agreement between magnetics and kinetics stored energy (10-SS/IO, 5-Outside mappings)H-modes in steady-stateTransient discharges included in set of L-modes

    tth generally good to within about 30%Depends on when smoothing is done (before or after tth calculated)Will be showing high numbers (smoothing after tth calculated)

    Contributions will be updated with results from more comprehensive analysis with latest CHERS data

  • Transient L-mode

  • Steady H-mode

  • All 25 TRANSP Runs

  • Subset of contributed data

    Agreement with EFIT01 better than with EFIT02

  • Fast ion stored energy ~20 to 35%Fast ion loss ~ 5 to 20%

  • PlansReprocess data with new CHERS inputFirst run-through already doneStudy differences from different mappingsCompile updated global informationAdd shots (from 25 already done)

    Identify additional discharges for TRANSP analysisSpecial attention to Ip, BT, PNBI, etc. scans in both L- and H

    Examine local transport propertiesSubject of future discussion