FIELD EMISSION ENHANCEMENT AND CONFINEMENT FROM SUPERCONDUCTIVE SURFACES

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 16931
Amount: $49,954.00
Phase: Phase I
Program: SBIR
Awards Year: 1991
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
4905 Hawkins Ne, Albuquerque, NM, 87109
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THIS PROJECT STUDIES THE FEASIBILITY OF USING A SUPERCONDUCTIVE SURFACE AS THE SOURCE OF ELECTRONS FOR ELECTRON-BEAM DIODE APPLICATIONS. CERAMIC-BASED MATERIALS SUCH AS YBA2CU3O6+X WILL BE TESTED. THE MATERIAL WILL BE DEPOSITED AS A COATING ON A METAL ELECTRODE, AND TESTED IN SOLID FORM. THIS WORK WILL CORRELATE THE FIELD-EMISSION CHARACTERISTICS OF THE SUPERCONDUCTIVE SURFACE WITH THE FIELD-EMISSION FORMULATIONS OF FOWLER-NORDHEIM AND RICHARDSON-DUSHMAN. THE FEASIBILITY OF USING SUPERCONDUCTIVE MATERIALS AS ELECTRON SOURCES FOR BEAM DIODES WILL BE DETERMINED BY DEMONSTRATING COATING INTEGRITYAND SUPERCONDUCTIVE-MATERIAL ELECTRON EMISSION UNDER DC AND HIGH-VOLTAGE PULSED REGIMES. IF THIS CONCEPT IS FEASIBLE, CURRENT DENSITIES OF MORE THAN 100 A/CM(2) WILL BE DEMONSTRATED DURING THE PHASE I PROGRAM. THIS PROJECT STUDIES THE FEASIBILITY OF USING A SUPERCONDUCTIVE SURFACE AS THE SOURCE OF ELECTRONS FOR ELECTRON-BEAM DIODE APPLICATIONS. CERAMIC-BASED MATERIALS SUCH AS YBA2CU3O6+X WILL BE TESTED. THE MATERIAL WILL BE DEPOSITED AS A COATING ON A METAL ELECTRODE, AND TESTED IN SOLID FORM. THIS WORK WILL CORRELATE THE FIELD-EMISSION CHARACTERISTICS OF THE SUPERCONDUCTIVE SURFACE WITH THE FIELD-EMISSION FORMULATIONS OF FOWLER-NORDHEIM AND RICHARDSON-DUSHMAN. THE FEASIBILITY OF USING SUPERCONDUCTIVE MATERIALS AS ELECTRON SOURCES FOR BEAM DIODES WILL BE DETERMINED BY DEMONSTRATING COATING INTEGRITYAND SUPERCONDUCTIVE-MATERIAL ELECTRON EMISSION UNDER DC AND HIGH-VOLTAGE PULSED REGIMES. IF THIS CONCEPT IS FEASIBLE, CURRENT DENSITIES OF MORE THAN 100 A/CM(2) WILL BE DEMONSTRATED DURING THE PHASE I PROGRAM.

* Information listed above is at the time of submission. *

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