Theory of gas discharge maintained by the electromagnetic symmetric surface wave allowing for radial non–uniformity of the magnetized plasma

• Дата: 2003
• Автори: Azarenkov, N.A., Olefir, V.P., Sporov, A.E.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2003
• Назва видання: Вопросы атомной науки и техники
• Теми: Basic plasma physics
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/110486
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Theory of gas discharge maintained by the electromagnetic symmetric surface wave allowing for radial non–uniformity of the magnetized plasma / N.A. Azarenkov, V.P. Olefir, A.E. Sporov // Вопросы атомной науки и техники. — 2003. — № 1. — С. 74-77. — Бібліогр.: 3 назв. — англ.

This report is devoted to the theoretical study of the phase characteristics, attenuation coefficient and axial electron density distribution in gas discharge maintained by symmetric high frequency electromagnetic wave in the diffusion controlled regime. The wave considered propagates along the waveguide structure that consists of a non–uniform plasma column, enclosed by dielectric tube that is surrounded by vacuum and placed within a cylindrical metal waveguide. The external steady magnetic field is directed along the axis of the waveguide system. Plasma is considered as a cold and weakly absorbing medium with constant value of effective electron collision frequency. The phase and attenuation surface wave characteristics, and the axial electron density distribution were considered in the approach of slightly axial non–uniformity plasma density. It was shown that the plasma density non–uniformity greatly influences on the wave characteristics and gas discharge axial structure.