A PULSE SOURCE FOR HEAVY, SHORT-DURATION CURRENTS,
Abstract
A source has been developed for short (10--100nsec) electron pulses with an amplitude of 2000 amp. Its performance is based on the extraction of electrons from discharge plasma in vacuum. A unique plasma cathode design made it possible to obtain an electron current density of 200 amp/sq cm. The source proposed by the authors provides for a uniform distribution of the discharge plasma over a large surface of the cathode. For this purpose, the electrode system consists of a corrugated metallic mesh on a substrate with a high dielectric constant. The opposite side of the substrate is cooled with a metallic film. The thickness of the substrate, the dielectric constant, and the pitch of the mesh are selected so as to produce an optimum configuration if internal capacitances for the breakdown distribution. The design allows for the formation area of these surfaces without changing the density of the current. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 04, 1968
- Accession Number
- AD0685021
Entities
People
- B. M. Kovalchuk
- F. Ya. Zagulov
- S. P. Bugaev
Organizations
- National Air and Space Intelligence Center