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Challis, C.D., Litaudon, X., Tresset, G., Baranov, Yu.F., Bécoulet, A. and Contributors to the EFDA-JET Workprogramme (2002) Influence of the q-profile shape on plasma performance in JET. Plasma Physics and Controlled Fusion, 44, 1031-1055. doi:10.1088/0741-3335/44/7/301

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• TITLE: Simulation of small size divertor tokamak plasma edge at low density of plasma

  AUTHORS: Amr Hasheim Bekheit

  KEYWORDS: Low Density; Quiescent H-mode; B2SOLPS Code

  JOURNAL NAME: Natural Science, Vol.4 No.1, December 31, 2011

  ABSTRACT: A low density plasma edge of small size divertor tokamak has been modeling by “B2SOLPS0.5.2 D” fluid transport code. The results of modeling are: 1) Formation of the strong “ITB” has detected more reliable with discovery that, low density plasma is necessary and important condition for it to form. 2) Reduction of plasma density play significantly role in the formation of the strong ITB as global parameter, possibly through change in the steep density gradient which stabilize “ITG” mode. 3) The radial electric field of small size divertor tokamak plasma edge is plasma density dependence and maximum radial electric field shear is found at low plasma density. 4) In the “NBI” discharge the toroidal (parallel) velocity at low plasma density is co-current and upward direction. 5) The structure of plasma pressure and radial electric field in quiescent H-mode are obtained.