Negative Ion Beams for Heating and Current-Drive in NET,
UKAEA CULHAM LAB ABINGDON (ENGLAND)
Pagination or Media Count:
A study of the capabilities of beam injection into NET as determined by the plasma and beam characteristics has recently been undertaken this paper summarises its findings. The report divides into two parts namely a study of the restrictions on beam parameters introduced by physics requirements and a review of the technical potential of negative ion based injection systems. Positive ion beam systems are excluded from consideration since their electrical efficiencies are too low to be practicable at the high energies needed to give acceptable beam penetration, optimum current drive efficiency and low divergence to allow beam transport through narrow ducts in Tokamak blankets.
- Plasma Physics and Magnetohydrodynamics
- Particle Accelerators