Title :
Stability issues of the ITER divertor experiment and laboratory (IDEAL) conceptual design study
Author :
Phillips, M.W. ; Gentzlinger, R.C. ; Swinton, J.H. ; Weissenburger, D.W. ; Cohen, S.A. ; Majeski, R. ; Motley, R.W.
Author_Institution :
Grumman Corp., Princeton, NJ, USA
Abstract :
Issues dealing with the plasma stability of the IDEAL conceptual design are presented. Of basic concern is stability of the plasma with respect to the interchange mode and the creation of a stable average minimum-B configuration. Interchange stability is achieved by the addition of a quadrupole magnetic field at each end of the device. The shaping function of the quadrupoles was found to be more than adequate for interchange stability. Numerous construction issues impacted the design of the quadrupole magnets and their effect on stability is assessed. One option for IDEAL is to drive an axial current down the device as an auxiliary source of plasma heating. Axial current alters the stability properties of the device introducing the possibility of kink modes which may limit the overall power achievable by this method
Keywords :
Tokamak devices; fusion reactor design; plasma heating; plasma instability; IDEAL; ITER divertor experiment and laboratory; axial current; conceptual design; construction issues; interchange mode; interchange stability; kink modes; plasma heating auxiliary source; plasma stability; quadrupole magnetic field; quadrupole magnets; shaping function; stable average minimum-B configuration; Coils; Laboratories; Magnetic fields; Magnets; Plasma confinement; Plasma devices; Plasma properties; Plasma simulation; Plasma sources; Plasma stability;
Conference_Titel :
Fusion Engineering, 1993., 15th IEEE/NPSS Symposium on
Conference_Location :
Hyannis, MA
Print_ISBN :
0-7803-1412-3
DOI :
10.1109/FUSION.1993.518349
