Radiation loss and plasma energy balance in a tokamak with a poloidal divertor

Journal Article · Fri Jan 01 04:00:00 EST 1982 · Sov. J. Plasma Phys. (Engl. Transl.); (United States)

OSTI ID:5091640

Brevnov, N N; Vertiporokh, A N; Dyabilin, K S; Khimchenko, L N

The effect of the divertor configuration on the radiative energy loss and the overall energy balance in the plasma has been studied in the T-12 tokamak. The spatial distribution of the emission intensity has been found with a multichannel system of pyroelectric detectors and by a new calculation method for a plasma column of elliptical cross section. The formation of the divertor configuration changed the distribution of the emission intensity and reduced the total radiated power. The radiative energy loss is determined primarily by iron; the average iron density over the cross section was n/sub Fe/approx.1 x 10/sup 11/ cm/sup -3/. The effective charge Z/sub eff/ was determined by light impurities (O,C). The divertor layer shields the plasma from the impurity influx coming from the chamber wall.

• Research Organization: I. V. Kurchatov Institute of Atomic Energy, Moscow
• OSTI ID: 5091640
• Journal Information: Sov. J. Plasma Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Plasma Phys. (Engl. Transl.); (United States) Vol. 8:1; ISSN SJPPD
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
CLOSED PLASMA DEVICES
CROSS SECTIONS
DIVERTORS
ENERGY BALANCE
ENERGY LOSSES
IMPURITIES
LOSSES
PLASMA DIAGNOSTICS
SPUTTERING
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
WALL EFFECTS