Author/Authors :
Vijvers، نويسنده , , W.A.J. and de Groot، نويسنده , , B. and Al، نويسنده , , R.S. and van den Berg، نويسنده , , M.A. and van Eck، نويسنده , , H.J.N. and Goedheer، نويسنده , , W.J. and Kleyn، نويسنده , , A.W. and Koppers، نويسنده , , W.R. and Kruijt، نويسنده , , O.G. and Lopes Cardozo، نويسنده , , N.J. and van der Meiden، نويسنده , , H.J. and van de Pol، نويسنده , , M.J. and Prins، نويسنده , , P.R. and Rapp، نويسنده , , P. P. J. M. Schram، نويسنده , , D.C. and Shumack، نويسنده , , A.E. and Smeets، نويسنده , , P.H.M. and Westerhout، نويسنده , , J. and Wright، نويسنده , , G.M. and van Rooij، نويسنده , , G.J.، نويسنده ,
Abstract :
A new cascaded arc containing three separate discharge channels at 15 mm distance from each other was constructed to produce intense and wide hydrogen plasma beams and first tests were carried out at Pilot-PSI. Current and voltage measurements as well as calorimetry on the cooling water of the source demonstrated that these channels operated independently. Thomson scattering measurements showed that, depending on the nozzle geometry, the three outputs merge to one beam if the source is operated at argon in magnetic fields up to 1.6 T densities. In hydrogen operation, the individual outputs did not merge or interact. Also a first test was performed in argon on the use of a remote ring anode to induce beam mixing due to rotation driven by cross-B currents.
Keywords :
Cascaded arc , Hydrogen , argon , Linear plasma generator , Plasma–surface interactions , Plasma source
