High Current Density Sheet-like Electron Beam Generator

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: N/A
Agency Tracking Number: 19649
Amount: $64,885.00
Phase: Phase I
Program: SBIR
Awards Year: 1993
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Astroterra Corp
11689 Sorrento Valley Road,, Suite A, San Diego, CA, 92121
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Eric Korevaar
 (619) 792-8501
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THIS PROPOSAL IS FOR THE DESIGN OPTIMIZATION AND TESTING OF A HIGH CURRENT SHEET-LIKE ELECTRON BEAM GENERATOR. SPECIFICALLY IT IS FOR A HIGH CURRENT DENSITY (>20A/CM2) SHEET ELECTRON BEAM SOURCE USING A RUGGED LaB(6) CATHODE. SHEET ELECTRON BEAMS ARE VERY DESIRABLE FOR COUPLING TO THE EVANESCENT WAVES IN SMALL MILLIMETER WAVE SLOW-WAVE CIRCUITS, IN ORDER TO GENERATE LARGER POWERS. LaB(6) IS ONE OF THE BEST THERMIONIC CATHODE MATERIALS PRODUCING VERY OUTPUT CURRENT DENSITY FOR A GIVEN EVAPORATION RATE. LaB(6) CAN BE REPEATEDLT EXPOSED TO AIR WITHOUT COMPROMISE TO ITS EMISSION PROPERTIES. HOWEVER, IT MUST OPERATE AT HIGHER TEMPERATURES THAN CONVENTIONAL CATHODES. TO BUILD A RELIABLE LaB(6) BASED RIBBON ELECTRON GUN REQUIRES EFFORT IN THE THERMAL DESIGN TO MINIMIZE THE NECESSARY OHMIC POWER. THE PROPOSED STUDY WILL ATTEMPT TO REACH AN OPTIMIZED DESIGN AND WILL COMPARE EXPERIMENTAL RESULTS WITH THE DESIGN PREDICTIONS.

* information listed above is at the time of submission.

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