The radial profile of Reynolds stress has been measured in the plasma boundary region of
the ISTTOK tokamak using a multiarray of Langmuir probes. The electrostatic Reynolds …

With the advances in the optimization of magnetic field equilibria, stellarators have become
a serious alternative to the tokamak, bringing this concept to the forefront of the pursuit of …

The concept of the small spherical tokamak project is described, the main objectives of the
project are to increase competencies at the University in the training of personnel in the field …

Long-distance correlations of density and potential fluctuations are investigated on the
poloidal circumference of flux surface in the TJ-K plasmas. Shear flow as induced by biasing …

The tokamak scrape-off layer (SOL) plasma dynamics is investigated in a circular limiter
configuration with a low edge safety factor. Focusing on the experimental parameters of two …

Operation of the tokamak ISTTOK in a multicycle alternating square wave plasma current
regime is reported. Discharges with seven half-cycles without dwell times, over a total time …

The properties of plasma turbulence in a poloidally limited scrape-off layer (SOL) are
addressed, with focus on ISTTOK, a large aspect ratio tokamak with a circular cross section …

Abstract At the Technical University of Denmark (DTU), we have in recent years acquired or
developed three small plasma devices. These consist of a small tokamak (NORTH), an …

The main engineering aspects of the tokamak ISTTOK operation in a multicycle alternating
flat-top plasma current regime are presented. AC discharges have been obtained feeding …

The interplay between large scale fluctuations and the local turbulent transport has been
investigated in the tokamak ISTTOK [CAF Varandas et al, Fusion Technol. 29, 105 (1996)] …