Author/Authors :
de Groot، نويسنده , , B. and van Rooij، نويسنده , , G.J. and Veremiyenko، نويسنده , , V. and von Hellermann، نويسنده , , M.G. and van Eck، نويسنده , , H.J.N. and Barth، نويسنده , , C.J. and Kruijtzer، نويسنده , , G.L. and Wolff، نويسنده , , J.C. and Goedheer، نويسنده , , W.J. and Lopes Cardozo، نويسنده , , N.J. and Kleyn، نويسنده , , A.W. and Smeets، نويسنده , , P.H.M. and Brezinsek، نويسنده , , S. and Pospieszczyk، نويسنده , , A. von Engeln، نويسنده , , R.A.H. and Dahiya، نويسنده , , R.P.، نويسنده ,
Abstract :
The FOM Institute for Plasma Physics is preparing the construction of the linear plasma generator, Magnum-psi. A pilot experiment (Pilot-psi) has been constructed, which we have used to optimize the cascaded arc plasma source and to explore the effect of high magnetic fields on the source operation as well as the expanding plasma beam and the effectiveness of Ohmic heating for manipulating the electron temperature and plasma density after the plasma expansion. Results are presented that demonstrate increasing source efficiency for increasing magnetic fields (up to 1.6 T). Thomson scattering measurements demonstrate that ITER relevant plasma fluxes are presently achieved in Pilot-psi: ∼1024 m−2 s−1 and that additional heating could elevate the plasma temperature from 1.0 to 1.7 eV.
Keywords :
Plasma–surface interaction , Cascaded arc , Thomson scattering , Spectroscopy
