Azimuthal self-pressed radiating discharge as a source of radially converging light flow
Abstract
Results of experimental and numerical research of an original azimuthal discharge are presented. This discharge was formed in a dielectric chamber with inner diameter of 11 cm, placed inside a solenoid-inductive storage, when primary current was disrupted by an opening switch of electroexplosive type and pressure of trapped magnetic field squeezed plasma shell to the wall of the chamber. To increase efficiency of magnetic field trapping, an additional six-channel creeping z-discharge was used as system of near wall gas preionization. Brightness temperature of plasma reached 4 eV when self-reflected shock wave additionally pressed plasma to the wall. In this moment a luminous helium plasma column with diameter of 1 cm and life-time of several microseconds appeared in axis zone. At gas pressure more 150 Torr, the shock wave does not come off a contact plasma surface and thus does not disturb rest gas.
- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- November 2002
- Bibcode:
- 2002APS..DPPBP1015B