Super-high-field tokamaks with ohmic heating to ignition

Conference · Wed Jan 01 04:00:00 EST 1986 · Trans. Am. Nucl. Soc.; (United States)

OSTI ID:5503233

Cohn, D R; Bromberg, L; Jassby, D L

In addition to eliminating the need for auxiliary heating, ohmic heating to ignition may well minimize the uncertainty in extrapolation of energy confinement scaling from present tokamak devices. Assuming the continued validity of the empirical neo-Alcator scaling that characterizes present-day ohmic-heated tokamak plasmas, namely, tau/sub E/ infinity nR/sup 2/a, purely ohmic heating to ignition could be realized by operation at exceptionally high values of B/sup 2/a. (Here n is the plasma density, R is the major radius, a is the minor radius, and B is the magnetic field at the plasma). The super-high-field ohmic-heated tokamak concept discussed in this paper differs from the ignitor and Riggatron approaches in the use of substantially higher values of B, B/sup 2/a, and R, in order to take advantage of the empirical confinement scaling.

• Research Organization: Massachusetts Institute of Technology, Cambridge
• OSTI ID: 5503233
• Report Number(s): CONF-860610-
• Conference Information: Journal Name: Trans. Am. Nucl. Soc.; (United States) Journal Volume: 52
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700205* -- Fusion Power Plant Technology-- Fuel
Heating
& Injection Systems
CLOSED PLASMA DEVICES
CONFINEMENT TIME
DESIGN
ELECTRIC HEATING
HEATING
JOULE HEATING
MAGNETIC FIELDS
MAGNETS
PLASMA HEATING
RESISTANCE HEATING
SCALING LAWS
THERMONUCLEAR DEVICES
THERMONUCLEAR IGNITION
TOKAMAK DEVICES