Accession Number : AD0276036

Title :   FEASIBILITY OF A MESHLESS STORAGE TUBE

Corporate Author : HUGHES RESEARCH LABS MALIBU CALIF

Personal Author(s) : LEHRER,N.H.

Report Date : 14 MAY 1962

Pagination or Media Count : 1

Abstract : A systematic study is being conducted of bombardment-induced-conductivity (BIC) materials which can be used to demonstrate the feasibility of a meshless storage tube. Criteria were established for the BIC characteristics which a dielectric must exhibit to switch and maintain the voltage drop across an electroluminescent (EL) layer. It was found that the conductance of the BIC dielectric before bombardment must be less than the susceptance and that the conductance after bombardment must be at least ten times the susceptance. The circuits and techniques to measure both the instantaneous (ac) BIC response as well as the sustained BIC response to pulsed electron bombardment were completed. Data on 1/2-micron zinc sulfide films were obtained for the sustained BIC response and ac values of the conduction ratio. A simple theoretical model was constructed from the data. On the basis of this model, it appears that the formation of space charge in the volume of the dielectric plays a major role in the BIC effect. The magnitude of the sustained BIC currents was found to vary from one film to another. (Author)

Descriptors :   *STORAGE TUBES, DIELECTRIC FILMS, ELECTRIC FIELDS, ELECTRICAL CONDUCTIVITY, ELECTRICAL NETWORKS, ELECTRON BEAMS, ELECTRON GUNS, FEASIBILITY STUDIES, INTEGRALS, LUMINESCENCE, MATERIALS, MEASUREMENT, MODEL TESTS, OSCILLOSCOPES, PHASE SHIFT CIRCUITS, POLARIZATION, SPACE CHARGE, SULFIDES, THEORY, ZINC COMPOUNDS

Distribution Statement : APPROVED FOR PUBLIC RELEASE