Title :
The Cadarache negative ion experiments
Author :
Massmann, P. ; Belchenko, Y. ; Bottereau, J.M. ; Brugnett, R. ; Bucalossi, J. ; Desgranges, C. ; Fumelli, M. ; Jacquot, C. ; Pamela, J. ; Riz, D. ; Simonin, A. ; Trainham, R.
Author_Institution :
CEA, Centre d´´Etudes Nucleaires de Cadarache, France
fDate :
30 Sep-5 Oct 1995
Abstract :
Up to energies of 140 keV neutral beam injection (NBI) based on positive ions has proven to be a reliable and flexible plasma heating method and has provided major contributions to most of the important experiments on virtually all large tokamaks around the world. As a candidate for additional heating and current drive on next step fusion machines (ITER) it is hoped that NBI can be equally successful. The ITER NBI parameters of 1 MeV 50 MW D0 demand primary D- beams with current densities of at least 15 mA/cm2. Although considerable progress has been made in the area of negative ion production and acceleration the high demands still require substantial and urgent development
Keywords :
ion sources; particle beam fusion accelerators; plasma beam injection heating; 140 keV neutral beam injection; Cadarache negative ion experiments; ITER; NBI; additional heating; current densities; current drive; next step fusion machines; plasma heating method; positive ions; primary D- beams; tokamaks; Acceleration; Fault location; Heating; Ion accelerators; Magnetic fields; Magnetic separation; Particle beams; Plasma accelerators; Plasma sources; Voltage;
Conference_Titel :
Fusion Engineering, 1995. SOFE '95. Seeking a New Energy Era., 16th IEEE/NPSS Symposium
Conference_Location :
Champaign, IL
Print_ISBN :
0-7803-2969-4
DOI :
10.1109/FUSION.1995.534264
