High Current Density Carbon Nanotube Cold Cathode for TWT Applications

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9451-05-M-0186
Agency Tracking Number: F051-001-1208
Amount: $76,410.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solicitation Year: 2005
Solicitation Topic Code: AF05-001
Solicitation Number: 2005.1
Small Business Information
3006 Longhorn Blvd., Suite 107, Austin, TX, 78758
DUNS: 013475129
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Richard Fink
 Vice President of Engineering
 (512) 339-5020
Business Contact
 Jacque Soptick
Title: Controller
Phone: (512) 339-5020
Email: jsoptick@appliednanotech.net
Research Institution
We propose a carbon nanotube based cold cathode designed for high current density, continuous beam operation for Traveling Wave Tubes and other microwave device applications. Our approach in this proposal will be to design the CNT emitters to spread the emission current load and to heat sink the emitters firmly to high thermal conducting carbon fibers. The carbon fiber substrate will also be used to align the carbon nanotube emitters and space them apart such that they will not electrically shield each other. Feasibility of this approach will be demonstrated by achieving 1-10 Amps/cm2 current density in continuous beam operation with a uniformity of 20% across the cathode face.

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

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