Nano-Particle Scandate Cathode for Space Communications

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX10CD93P
Agency Tracking Number: 094655
Amount: $99,961.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: O1.07
Solicitation Number: N/A
Small Business Information
21070 SW Tile Flat Road, Beaverton, OR, 97007-8739
DUNS: 192000149
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Bernard Vancil
 Principal Investigator
 (503) 628-0703
Business Contact
 Bernard Vancil
Title: President
Phone: (503) 628-0703
Research Institution
We propose an improved cathode based on our novel theory of the role of scandium oxide in enhancing emission in tungsten impregnate cathodes. Recent results have demonstrated the efficacy of nano-particle scandium oxide, but a detailed theory on mechanism has been lacking. Our theory explains published data and point to an optimized cathode which we here propose to build and test at our facility. The cathode is the performance limiting component in high frequency linear beam amplifiers such as traveling wave tubes and klystrons. Bandwidth, data rates, numbers of channels, frequency and output power requirements are going up. The performance of linear beam amplifiers is acutely limited by the cathode limitations. Scandate cathodes offer a way to increase emission from current limits of about 10 A/cm2 to about 50 A/cm2.

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

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