|
|
| VOLUME 19 (1974) | ISSUE 5 |
PAGE 283
|
Investigation of the plasma density distribution in the "Tuman-2" installation by the method of active corpuscular diagnostics
Berezovskii E.L., Kislyakov A.I., Mikhailov E.A.
The toroidal installation "Tuman-2" for magnetic adiabatic heating was used to measure the distributions of the plasma density over the small cross section of the plasma pinch for different instants of contraction and expansion. The measurements were made by sounding the plasma with beams of fast hydrogen atoms along different chords of the discharge chamber. It is shown that during the contraction time, the total number of charged particles in the plasma pinch increases by 60-90%, owing to the increase in their lifetime. The coefficient of plasma diffusion across the magnetic field, which coincides in the Ohmic heating regime with the Bohm value (8 Χ 104 cm2/sec), decreases during the compression time to a value not exceeding 2X103 cmVsec.
|
|
Home
![](/ps/1774/article_26991_800_head.png "The toroidal installation "Tuman-2" for magnetic adiabatic heating was used to measure the distributions of the plasma density over the small cross section of the plasma pinch for different instants of contraction and expansion. The measurements were made by sounding the plasma with beams of fast hydrogen atoms along different chords of the discharge chamber. It is shown that during the contraction time, the total number of charged particles in the plasma pinch increases by 60-90%, owing to the increase in their lifetime. The coefficient of plasma diffusion across the magnetic field, which coincides in the Ohmic heating regime with the Bohm value (8 Χ 10<sup>4</sup> cm<sup>2</sup>/sec), decreases during the compression time to a value not exceeding 2X10<sup>3</sup> cmVsec.")