Author/Authors :
Kraus، نويسنده , , W. and Heinemann، نويسنده , , B. and Falter، نويسنده , , H.D. and Franzen، نويسنده , , P. and Speth، نويسنده , , E. and Entscheva، نويسنده , , A. and Fantz، نويسنده , , U. and Franke، نويسنده , , T. and Holtum، نويسنده , , D. and Martens، نويسنده , , Ch. and McNeely، نويسنده , , P. and Riedl، نويسنده , , R. and Wilhelm، نويسنده , , R.، نويسنده ,
Abstract :
With an extraction area of 152 cm2 a calorimetrically measured H− current density of 19.3 mA/cm2 has been achieved at 0.45 Pa with 90 kW RF power. With 306 cm2 the electrically measured H− current has reached up to 9.7 A corresponding to 32 mA/cm2 at 100 kW. The current on the calorimeter is limited by the extraction system. Down to 0.2 Pa only a weak dependence on the source pressure has been observed. The test bed will be upgraded to demonstrate cw operation with deuterium. Based on the tested prototype a half size ITER RF-source of 80 cm × 90 cm with 360 kW RF power has been designed.
