TURBULENT DYNAMO IN AN AXISYMMETRICAL OPEN CONFINEMENT SYSTEM

The generation of large-scale magnetic fields and electric currents vi a small-scale turbulent motions of the conducting medium, which plays an important role in the dynamics of astro- and geophysical objects an d laboratory plasmas, is studied. In particular, this effect is respon sible for the generation of the current directed along the axial magne tic field line in the toroidal reversed-field pinch (the so-called alp ha effect). It is shown for the first time that a similar effect takes place in open magnetic confinement systems.