Fast ion source and detector for investigating the interaction of turbulence with suprathermal ions in a low temperature toroidal plasma

Plyushchev, G.; Diallo, A.; Fasoli, A.; Furno, I.; Labit, B.; Müller, S. H.; Podestà, M.; Poli, F. M.; Boehmer, H.; Heidbrink, W. W.; Zhang, Y.
October 2006
Review of Scientific Instruments;Oct2006, Vol. 77 Issue 10, p10F503
Academic Journal
A specific experimental apparatus consisting of an ion source and a detector for the investigation of the interaction between suprathermal ions and drift-wave turbulence is developed on the toroidal plasma experiment. Due to the low plasma temperature (∼5 eV), a spatially localized, small-size ion source (∼4 cm) mounted inside the vacuum vessel with relatively low ion energy (∼100 eV–1 keV) can be used. The source consists of an aluminosilicate Li-6 ion emitter (6 mm diameter, 10–30 μA current) installed on a two-dimensional (2D) poloidally moving system. The location, energy, and current density profile of the ion beam will be measured using a 2D movable gridded energy analyzer.


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