Kinetic features of TdeV Tokamak SOL plasmas
- Centre Canadien de Fusion Magnetique, Varrenes, Quebec (Canada)
- MIT, Cambridge, MA (United States); and others
We apply our 1D2V adaptive Fokker-Planck code ALLA to model detached plasma flow in the scrape-off-layer of Tokamak-de-Varrenes (TdeV). Our previous simulations of the electron transport in the last two meters of open magnetic lines in TdeV showed the importance of kinetic effects. In this investigation we use an improved model of the TdeV SOL plasma which permits us to simulate the whole magnetic line and impose the proper boundary conditions at the target. Also our model uses actual experimental data for detached plasma given by divertor and fast-scanning probes. We begin by using a heat conduction model to reconstruct the plasma temperature and density in the midplane-plate region. We obtain an electron distribution function and calculate the deviation of reaction rates and transport coefficients from their equilibrium values. We also estimate how non-Maxwellian electrons distribution features affect divertor and reciprocating probe measurements. Next we study the sensitivity of the parallel electron transport on plasma profile variations. For comparison we present results for attached TdeV SOL plasma flow modelling, again using recent experimental data.
- DOE Contract Number:
- FG02-91ER54109; FG02-88ER53263
- OSTI ID:
- 489396
- Report Number(s):
- CONF-960354-; TRN: 97:011539
- Resource Relation:
- Conference: International Sherwood fusion theory conference, Philadelphia, PA (United States), 18-20 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of 1996 international Sherwood fusion theory conference; PB: 244 p.
- Country of Publication:
- United States
- Language:
- English
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