Accession Number : AD0282854

Title :   DYNAMIC CROSSED-FIELD ELECTRON MULTIPLICATION

Corporate Author : ILLINOIS UNIV URBANA ELECTRICAL ENGINEERING RESEARCH LAB

Personal Author(s) : HOLSHOUSER,DON F.

Report Date : DEC 1962

Pagination or Media Count : 1

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)

Descriptors :   *ELECTRODES, *ELECTRON MULTIPLIERS, *ELECTRONS, *MATHEMATICAL ANALYSIS, *SECONDARY EMISSION, ATOMIC ORBITALS, ELECTRIC FIELDS, GEOMETRY, MAGNETIC FIELDS, MICROWAVES, SURFACES, ULTRAHIGH FREQUENCY, VELOCITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE