Author/Authors :
Karpushov، A.N. نويسنده , , Alexander N. and Abdrashitov، نويسنده , , G.F. and Averboukh، نويسنده , , I.I. and Bosshard، نويسنده , , P. and Condrea، نويسنده , , I. and Duval، نويسنده , , B.P. and Ivanov، نويسنده , , A.A. and Kolmogorov، نويسنده , , V.V. and Mlynar، نويسنده , , J. and Perez، نويسنده , , A. and Shikhovtsev، نويسنده , , I.V. and Shukaev، نويسنده , , A.N. and Weisen، نويسنده , , H.، نويسنده ,
Abstract :
A diagnostic neutral beam injector (DNBI) [CRPP report LRP 710/01, CRPP-EPFL, 2001; EPS Conf. Contr. Fusion Plasma Phys., 25A (2001) 365] has been installed on tokamak à configuration variable (TCV) [Plasma Phys. Control Fusion, 36 (1994) B277; Plasma Phys. Control Fusion, 43 (2001) A161; Plasma Phys. Control Fusion, to be published] for the purpose of providing local measurements of plasma ion temperature, velocity and impurity density by Charge eXchange recombination spectroscopy (CXRS) [EPS Conf. Contr. Fusion Plasma Phys., 25A (2001) 365]. The system recently underwent a technical upgrade, which allowed to increase the full neutral beam current density by a factor of two (from 0.5 to 1 A at 52 keV injection energy) and to extend the operational range of the diagnostic. This was achieved by means of a new, larger ion source, with an increased extraction area and corresponding enhancements of the power supplies.
