High Current Density Carbon Nanotube Cold Cathode for TWT Applications

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$76,410.00
Award Year:
2005
Program:
SBIR
Phase:
Phase I
Contract:
FA9451-05-M-0186
Award Id:
72735
Agency Tracking Number:
F051-001-1208
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
APPLIED NANOTECH, INC. (Currently APPLIED NANOTECH INC)
3006 Longhorn Blvd., Suite 107, Austin, TX, 78758
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
013475129
Principal Investigator:
Richard Fink
Vice President of Engineering
(512) 339-5020
dfink@appliednanotech.net
Business Contact:
Jacque Soptick
Controller
(512) 339-5020
jsoptick@appliednanotech.net
Research Institution:
n/a
Abstract
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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