DYNAMIC CROSSED-FIELD ELECTRON MULTIPLICATION
Abstract
A method of secondary-electron multiplication, employing UHF or a microwave electric field in combination with a steady magnetic field and a single secondary-emitting surface, is described. Electrons which are emitted from the surface gain energy from the electric field and, through the action of the magnetic field, return to the same surface at phases and energies such as to produce more seco dary electrons, which execute similar trajectories. The number of multiplication steps between two points on the emitting surface is controlled by adjustment of the fields. A phase-focussing action, dependent upon the magnetic field, limits the transit-time spread of electrons. The relations between arrival time and departure time of electrons are discussed. The effect of initial electron velocity is described. Possible applications of the unique properties of this multiplication method re mentioned. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1962
- Accession Number
- AD0282854
Entities
People
- Don F. Holshouser
Organizations
- University of Illinois Urbana–Champaign