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Title: Method to fabricate portable electron source based on nitrogen incorporated ultrananocrystalline diamond (N-UNCD)

Abstract

A source cold cathode field emission array (FEA) source based on ultra-nanocrystalline diamond (UNCD) field emitters. This system was constructed as an alternative for detection of obscured objects and material. Depending on the geometry of the given situation a flat-panel source can be used in tomography, radiography, or tomosynthesis. Furthermore, the unit can be used as a portable electron or X-ray scanner or an integral part of an existing detection system. UNCD field emitters show great field emission output and can be deposited over large areas as the case with carbon nanotube "forest" (CNT) cathodes. Furthermore, UNCDs have better mechanical and thermal properties as compared to CNT tips which further extend the lifetime of UNCD based FEA.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1244221
Patent Number(s):
9299526
Application Number:
14/261,680
Assignee:
UChicago Argonne, LLC (Chicago, IL) The Curators of the University of Missouri (Columbia, MO)
Patent Classifications (CPCs):
G - PHYSICS G21 - NUCLEAR PHYSICS G21K - TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Apr 25
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE

Citation Formats

Sumant, Anirudha V., Divan, Ralu, Posada, Chrystian M., Castano, Carlos H., Grant, Edwin J., and Lee, Hyoung K. Method to fabricate portable electron source based on nitrogen incorporated ultrananocrystalline diamond (N-UNCD). United States: N. p., 2016. Web.
Sumant, Anirudha V., Divan, Ralu, Posada, Chrystian M., Castano, Carlos H., Grant, Edwin J., & Lee, Hyoung K. Method to fabricate portable electron source based on nitrogen incorporated ultrananocrystalline diamond (N-UNCD). United States.
Sumant, Anirudha V., Divan, Ralu, Posada, Chrystian M., Castano, Carlos H., Grant, Edwin J., and Lee, Hyoung K. Tue . "Method to fabricate portable electron source based on nitrogen incorporated ultrananocrystalline diamond (N-UNCD)". United States. https://www.osti.gov/servlets/purl/1244221.
@article{osti_1244221,
title = {Method to fabricate portable electron source based on nitrogen incorporated ultrananocrystalline diamond (N-UNCD)},
author = {Sumant, Anirudha V. and Divan, Ralu and Posada, Chrystian M. and Castano, Carlos H. and Grant, Edwin J. and Lee, Hyoung K.},
abstractNote = {A source cold cathode field emission array (FEA) source based on ultra-nanocrystalline diamond (UNCD) field emitters. This system was constructed as an alternative for detection of obscured objects and material. Depending on the geometry of the given situation a flat-panel source can be used in tomography, radiography, or tomosynthesis. Furthermore, the unit can be used as a portable electron or X-ray scanner or an integral part of an existing detection system. UNCD field emitters show great field emission output and can be deposited over large areas as the case with carbon nanotube "forest" (CNT) cathodes. Furthermore, UNCDs have better mechanical and thermal properties as compared to CNT tips which further extend the lifetime of UNCD based FEA.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {3}
}

Works referenced in this record:

Synthesis and characterization of highly-conducting nitrogen-doped ultrananocrystalline diamond films
journal, September 2001


Characterization of nitrogen-incorporated ultrananocrystalline diamond as a robust cold cathode material
conference, April 2010


Construction of a ultrananocrystalline diamond-based cold cathode arrays for a flat-panel x-ray source
conference, June 2013


Nitrogen incorporated ultrananocrystalline diamond based field emitter array for a flat-panel x-ray source
journal, April 2014


N-type droping of nanocrystalline diamond films with nitrogen and electrodes made therefrom
patent, September 2004


Diamondoid monolayers as electron emitters
patent, April 2012


Cold emitter x-ray tube incorporating a nanostructured carbon film electron emitter
patent-application, January 2003


Electrode and electron emission applications for n-type doped nanocrystalline materials
patent-application, June 2006


Diamond Film Coated Electrode for Battery
patent-application, July 2014