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Yet More Analysis of XP1043

MA Jaworski 2/20/12. Yet More Analysis of XP1043. Analysis Methodology. J. Canik analysis indicates PsiN of the pump entrance for the candidate shapes clusters at certain values 1.02, 1.04, 1.07, 1.11 and 1.15

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Yet More Analysis of XP1043

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  1. MA Jaworski 2/20/12 Yet More Analysis of XP1043

  2. Analysis Methodology • J. Canik analysis indicates PsiN of the pump entrance for the candidate shapes clusters at certain values • 1.02, 1.04, 1.07, 1.11 and 1.15 • From data set shown at meeting 4, the value of jsat_parallel and the single probe temperatures are extracted two ways • 1: Nearest available binned data point taken from data, std. dev. shown as error bar • 2: bi-exponential fit value at the requested value • More notes to follow on Te in the far-SOL

  3. Jsat behavior at selected PsiN • Near-SOL behavior not monotonic with Ip • Far-SOL exhibits downward trend

  4. Far-SOL Te Behavior • Triple-Langmuir probe (probe 2) at 65cm used for Te • Flat-top period where probe is >= second separatrix PsiN used to produce mean Te • Standard Dev. shown as error bar • Statistically, there does not seem to be much trend in the far-SOL Te

  5. Discussion • The decrease in far-SOL flux with Ip seems consistent with earlier analysis of decay lengths • As near-SOL contracts (and near-SOL contains 90%) of cumulative fraction, less should impinge PFCs in the far-SOL

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