An electromagnetic vibrator fixed on a screen initiates gas breakdown in the subcritical field of a microwave beam
Abstract
Results of experimental investigation of the electric breakdown of air in a quasi-optical microwave beam with a deep subcritical field level are presented. The breakdown was initiated by a linear or Γ-shaped electromagnetic (EM) vibrator fixed on a screen. It is established that a vibrator positioned above the screen at a distance shorter than quarter-wavelength of the EM field can induce the electric breakdown of air at high pressures and relatively low field level. Using a Γ-shaped EM vibrator, it is possible to preset the spatial region of breakdown.
- Publication:
-
Technical Physics Letters
- Pub Date:
- March 2014
- DOI:
- 10.1134/S106378501403016X
- Bibcode:
- 2014TePhL..40..274A
- Keywords:
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- Technical Physic Letter;
- Electric Breakdown;
- Fresnel Zone;
- Screen Plane;
- Breakdown Pressure