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NSTX Contributions to ITPA L- and H-mode Global Databases

NSTX Contributions to ITPA L- and H-mode Global Databases. S. M. Kaye 30 July 2003. Initial contributions based on analysis using iz.dat CHERS data Since then, additional atomic physics corrections, n c profiles Contributions will be updated based on newest analysis

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NSTX Contributions to ITPA L- and H-mode Global Databases

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

  2. Initial contributions based on analysis using iz.dat CHERS data • Since then, additional atomic physics corrections, nc profiles • Contributions will be updated based on newest analysis • Data contributions include detailed global shot info at toi • Most notably fast ion energy, losses • Determination of tth (TRANSP analysis) • Data include info from waveforms, MPTS, CHERS, EFIT(01), TRANSP • Time smoothing over 15 msec • Zeff from waveforms, or =1.5 (flat profile) • Initial contribution limited to 15 discharges • 8-L, 7-H • H-mode criterion: discharge exhibits sudden decrease in Da not associated with geometry changes, MHD, etc.

  3. Initial set of shots chosen by following criteria • “Good” agreement between magnetics and kinetics stored energy (10-SS/IO, 5-Outside mappings) • H-modes in “steady-state” • Transient 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

  4. Transient L-mode

  5. Steady H-mode

  6. All 25 TRANSP Runs

  7. Subset of contributed dataAgreement with EFIT01 better than with EFIT02

  8. Fast ion stored energy ~20 to 35%Fast ion loss ~ 5 to 20%

  9. Plans • Reprocess data with new CHERS input • First run-through already done • Study differences from different mappings • Compile updated global information • Add shots (from 25 already done) • Identify additional discharges for TRANSP analysis • Special attention to Ip, BT, PNBI, etc. “scans” in both L- and H • Examine local transport properties • Subject of future discussion

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