Accession Number : ADA180997

Title :   Space Charge Limited and Temperature Limited Electron Flow in the Vicinity of Edges and Conical Points.

Descriptive Note : Interim rept. Jan 86-Jan 87,

Corporate Author : MARYLAND UNIV COLLEGE PARK LAB FOR PLASMA AND FUSION ENERGY STUDIES

Personal Author(s) : Finn, J. M. ; Antonsen, T. M., Jr. ; Manheimer, W. M.

Report Date : 04 MAY 1987

Pagination or Media Count : 47

Abstract : Similarity solutions for electron flow in the neighborhood of edges (cylindrical corners) and points are found. Boundary conditions on the cathode giving space limited and temperature limited flow are used. The results show the scaling of density, potential and current density with distance from the singularity as a function of corner angle (cone angle). The results are expected to be useful in initializing trajectories in simulation codes for various designs involving sharp corners and points. Keywords: Similarity solution; Electron flow; Cylindrical corners; Points; Scaling of density; Potential and current density; Cone angle; Trajectories; Simulation codes; Diode designs.

Descriptors :   *BOUNDARIES, *CONICAL BODIES, *ELECTRONS, *TRAJECTORIES, ANGLES, CODING, DENSITY, FLOW, LIMITATIONS, SCALING FACTORS, SIMULATION, SPACE ENVIRONMENTS, TEMPERATURE.

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE