"anomalous ion diffusion; tokamak edge plasma turbulence; low frequency potential; diffusion of random walk and levy walk type; generation of radila electric field; selfconsistent PIC method"@en . "Je obecn\u011B p\u0159ijato, \u017Ee n\u00EDzkofrekven\u010Dn\u00ED turbulence na okraji plazmatu vyvol\u00E1v\u00E1 anom\u00E1ln\u00ED dif\u00FAzi \u010D\u00E1stic z tokamaku. V na\u0161ich prac\u00EDch jsme navrhli nov\u00FD jednoduch\u00FD model dif\u00FAze. zalo\u017Een\u00FD na ExB dif\u00FAzi \u010D\u00E1stic v prostorov\u011B periodick\u00E9m a stacion\u00E1rn\u00EDm potenci\u00E1ln\u00EDm poli. Nalezli jsme dva re\u017Eimy anom\u00E1ln\u00ED dif\u00FAze typu radom-walk a l\u00E9vy-walk. Anom\u00E1ln\u00ED dif\u00FAze generovala radi\u00E1ln\u00ED elektrick\u00E9 pole. Projekt p\u0159edpokl\u00E1d\u00E1 zobecn\u011Bn\u00ED v\u00FDsledk\u016F na potenci\u00E1ln\u00ED pole s kone\u010Dnou prostorovou a \u010Dasovou korelac\u00ED, dan\u00E9ho analyticky a experiment\u00E1ln\u011B a chce uk\u00E1zat, zdali v tomto obecn\u011Bj\u0161\u00EDm modelu p\u0159etrv\u00E1vaj\u00ED jevy, zji\u0161t\u011Bn\u00E9 v jednoduch\u00E9m modelu. Chceme ohodnotit rozd\u00EDl mezi obvykle pou\u017E\u00EDvan\u00FDm driftov\u00FDm p\u0159ibl\u00ED\u017Een\u00EDm a \u00FApln\u00FDm popisem dynamiky se zahrnut\u00EDm cyklotronov\u00E9ho pohybu. Proto\u017Ee anom\u00E1ln\u00ED dif\u00FAzi \u010D\u00E1stic m\u016F\u017Ee zp\u016Fsobit i jejich interakce se syst\u00E9my magnetick\u00FDch ostrov\u016F, projekt zahrne i tento p\u0159\u00EDpad. Projekt p\u0159edpokl\u00E1d\u00E1 vytvo\u0159en\u00ED analytick\u00FDch podklad\u016F a numerick\u00FDch k\u00F3d\u016F pro zm\u00EDn\u011Bn\u00E9 mechanismy." . " generation of radila electric field" . . "http://www.isvav.cz/projectDetail.do?rowId=IAA1043201"^^ . "0"^^ . . . "2"^^ . . "Numerical solution of the dynamics of plasma particles has shown that in a model of a turbulent plasma potential as well as in the potential, experimentally detected is an anomalous diffusion of carbon ions faster than that the diffusion of electrons."@en . "Numerick\u00E9 \u0159e\u0161en\u00ED dynamiky \u010D\u00E1stic plazmatu uk\u00E1zalo, \u017Ee v modelov\u00E9m i experiment\u00E1ln\u00EDm turbulentn\u00EDm potenci\u00E1lu plazmatu tokamaku je anom\u00E1ln\u00ED difuze iont\u016F uhl\u00EDku rychlej\u0161\u00ED, ne\u017E difuze elektron\u016F a m\u016F\u017Ee v\u00E9st ke generaci radi\u00E1ln\u00EDho elektrick\u00E9ho pole."@cs . . "0"^^ . "2007-09-26+02:00"^^ . "Anom\u00E1ln\u00ED dif\u00FAze \u010D\u00E1stic plazmatu v elektrostatick\u00E9 turbulenci a syst\u00E9mech s magnetick\u00FDmi ostrovy" . . . "anomalous ion diffusion" . . . . "10"^^ . . "10"^^ . . . . . . " tokamak edge plasma turbulence" . . . "Anomalous diffusion of plasma particles in electrostatic turbulence and systems of magnetic islands."@en . "It is generally accepted that the low frequency turbulence in tokamaks causes of a diffusion of particles. Recently, we have proposed a new simple model of diffusion, based on ExB diffusion of particles in a spatially periodical stationary potential field. We found two regimes of an anomalous diffusion: random-walk and L\u00E9vy-walk type and generatation of a radial electric field. The project supposes to generalize the mentioned approach for the case of potentials with limited spatial and temporal correlations given analytically and experimentally and wishes to show whether the found phenomena will survive in the generalized model. We shall estimate the difference between the usually used drift approximation and the full description, which includes the cyclotron motion. We will also investigate the anomalous diffusion of particles due to their interaction with magnetic islands. The project covers establishing of the analytical backgrounds and numerical codes for the mentioned mechanisms."@en . " low frequency potential" . . " diffusion of random walk and levy walk type" . "IAA1043201" .