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Published byLynette Lindsey Modified over 9 years ago
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NSTX Contributions to ITPA L- and H-mode Global Databases S. M. Kaye 30 July 2003
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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 Data contributions include detailed global shot info at toi –Most notably fast ion energy, losses Determination of t th (TRANSP analysis) –Data include info from waveforms, MPTS, CHERS, EFIT(01), TRANSP –Time smoothing over 15 msec –Z eff 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 D not associated with geometry changes, MHD, etc.
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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 th generally good to within about 30% –Depends on when smoothing is done (before or after th calculated) –Will be showing “high” numbers (smoothing after th calculated) Contributions will be updated with results from more comprehensive analysis with latest CHERS data
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Transient L-mode
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Steady H-mode
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All 25 TRANSP Runs
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Subset of contributed data Agreement with EFIT01 better than with EFIT02
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Fast ion stored energy ~20 to 35% Fast ion loss ~ 5 to 20%
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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 I p, B T, P NBI, etc. “scans” in both L- and H Examine local transport properties –Subject of future discussion
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