Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Plasma compression in the Tuman-2 device

Journal Article · · Sov. Phys. - Tech. Phys. (Engl. Transl.), v. 20, no. 3, pp. 339-345
OSTI ID:4068224
; ; ; ; ; ; ; ; ; ;
Experiments on ohmic heating and compression in the Tuman-2 toroidal device are reported. A plasma with a density of approx.10$sup 13$ cm$sup -3$ and an electron temperature of 20--30 eV is obtained by ohmic heating in a toroidal field of 3--5 kOe. When this field is raised from 3.2 to 11.5 kOe in 125 $mu$sec effective compression of the plasma is observed: The plasma density increases by a factor of 3 and the electron temperature increases by a factor of 2.5. The heating in compression is shown to be due to improved thermal insulation of the plasma. At the same time, the plasma waves are damped, and the interaction of the plasma with the limiter is weakened. Measurements of the radial density profile show that the transverse diffusion rate decreases in compression. For the compressed plasma the diffusion coefficient is Dapproximately-less- than2x10$sup 3$ cm$sup 2$/sec, which is less than 0.1 of the Bohm diffusion coefficient and in a agreement with the diffusion coefficient predicted by pseudoclassical theory. (AIP)
Research Organization:
A. F. Ioffe Physicotechnical Institute, Academy of Sciences of the USSR, Leningrad
NSA Number:
NSA-33-022880
OSTI ID:
4068224
Journal Information:
Sov. Phys. - Tech. Phys. (Engl. Transl.), v. 20, no. 3, pp. 339-345, Journal Name: Sov. Phys. - Tech. Phys. (Engl. Transl.), v. 20, no. 3, pp. 339-345; ISSN SPTPA
Country of Publication:
United States
Language:
English

Similar Records

Ohmic-heating and plasma-compression experiments in the Tuman-3 tokamak
Journal Article · Fri Dec 31 23:00:00 EST 1982 · Sov. J. Plasma Phys. (Engl. Transl.); (United States) · OSTI ID:5664015
Particle-beam diagnostics during plasma compression in the Tuman 2A tokamak
Journal Article · Wed Oct 31 23:00:00 EST 1979 · Sov. J. Plasma Phys. (Engl. Transl.); (United States) · OSTI ID:5453733
Magnetic compression of toroidal plasma in Tuman-2 device
Book · Sun Dec 31 23:00:00 EST 1972 · OSTI ID:4430059

Related Subjects

*PLASMA HEATING-- JOULE HEATING
*TUMAN DEVICES-- JOULE HEATING
700101* --Fusion Energy--Plasma Research--Plasma Confinement & Heating
ELECTRON TEMPERATURE
MAGNETIC FIELDS
N70100* --Physics--Controlled Thermonuclear Research-- Confinement & Heating
PLASMA DENSITY
PLASMA WAVES