Accession Number : ADA184390

Title :   Negative Ion Beams for Heating and Current-Drive in NET,

Corporate Author : UKAEA CULHAM LAB ABINGDON (ENGLAND)

Personal Author(s) : Cox,M ; Green,T S ; Hammond,D P ; Holmes,A J

PDF Url : ADA184390

Report Date : Jan 1987

Pagination or Media Count : 8

Abstract : 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).

Descriptors :   *PLASMAS(PHYSICS), *ION BEAMS, ENERGY, TRANSFER, TOKAMAKS, TRANSPORT PROPERTIES, ELECTRON ENERGY, CROSS SECTIONS, POWER SUPPLIES, HIGH VOLTAGE, GREAT BRITAIN

Subject Categories : Plasma Physics and Magnetohydrodynamics
      Particle Accelerators

Distribution Statement : APPROVED FOR PUBLIC RELEASE