Title :
Studies of plasma performance and transport in the advanced toroidal facility (ATF)
Author :
Neilson, G.H. ; Aceto, S.C. ; Anabitarte, E. ; Anderson, F.S.B. ; Bell, G.L. ; Bell ; Benson, R.D. ; Bigelow, T.S. ; Carreras, B.A. ; Clark, T.L. ; Colchin, R.J. ; Crume, E.C. ; DeVan, W.R. ; Dunlap, J.L. ; Dyer, G.R. ; England, A.C. ; Glowienka, J.C. ; H
Author_Institution :
Oak Ridge Nat. Lab., TN, USA
Abstract :
An overview of recent AFT (Advanced Toroidal Facility) experimental results and program plans is presented, with emphasis on the role of magnetic configuration controls in transport studies. The ATF operating space is bounded by a density limit that effectively sets a limit on the energy confinement time τE. Although this limit is not solely due to impurities, it has recently been raised by improved cleanliness following titanium gettering. This has led to collapse-free neutral beam injection discharges with global τE ≈16 ms. Preliminary experiments show that stored energy and bootstrap current are sensitive to details of the magnetic configuration
Keywords :
Tokamak devices; fusion reactor theory and design; plasma impurities; plasma toroidal confinement; plasma transport processes; AFT; Advanced Toroidal Facility; bootstrap current; collapse-free neutral beam injection discharges; density limit; energy confinement time; impurities; magnetic configuration; magnetic configuration controls; Electrons; Impurities; Laboratories; Magnetic confinement; Physics; Plasma confinement; Plasma devices; Plasma transport processes; Titanium; Toroidal magnetic fields;
Conference_Titel :
Fusion Engineering, 1989. Proceedings., IEEE Thirteenth Symposium on
Conference_Location :
Knoxville, TN
DOI :
10.1109/FUSION.1989.102161
