Photo Triggered Carbon Nanotube Field Emission Cathode for Free Electron Lasers

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-10-M-0330
Agency Tracking Number: N10A-023-0575
Amount: $69,996.00
Phase: Phase I
Program: STTR
Awards Year: 2010
Solicitation Year: 2010
Solicitation Topic Code: N10A-T023
Solicitation Number: 2010.A
Small Business Information
11 Tech Circle, Natick, MA, 01760
DUNS: 184629491
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Luis Velasquez-Garcia
 Principal Scientist
 (617) 253-0573
 lfvelasq@MIT.EDU
Business Contact
 Judy Budny
Title: Contracts Administrator
Phone: (508) 655-5565
Email: judy@busek.com
Research Institution
 Massachusetts Institute of Tech
 Kimberly Mann
 77 Massachusetts Avenue
Dept of OE-Rm 5-2047
Cambridge, MA, 2139
 (617) 253-3907
 Nonprofit college or university
Abstract
Busek Co. Inc (Busek) and Massachusetts Institute of Technology (MIT) propose to develop the design of a photon actuated, ultrafast carbon nanotube (CNT) field emission cathodes for high-power electron beam accelerator sources. The cathode will be based on massive arrays of Vertically Aligned Carbon Nano-Fibers (VA-CNFs) that are individually controlled by a vertical ungated field effect transistor (FET). These arrays would be activated using photons from a laser to achieve ultrafast current emission. The team will focus on designing a cathode based on massive arrays of VA-CNFs that is able to emit up to A/cm^2-level electron current, and on the design of a reflecting structure that concentrates photons from a common source on the surface of the VA-CNF tips. The proposed cathode will harness five important technologies that will enable current densities up to 10 A cm^-2, a total emission area of 25 mm^-2 or higher, and able to emit in 10 pico second level pulses: 1) Fabrication of uniform isolated VA-CNFs; 2) Individual ballasting of the field emitters using vertical FET; 3) Photon-enabled field emission for ultrafast cathode actuation; 4) High-pressure (>10^-3 torr) operation; and 5) Proximal electrostatic lenses to individually control the emission from each CNT tip.

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

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