A compact neutron generator using a field ionization source

Field ionization as a means to create ions for compact and rugged neutron sources is pursued. Arrays of carbon nano-fibers promise the high field-enhancement factors required for efficient field ionization. We report on the fabrication of arrays of field emitters with a density up to 10 6 tips/cm 2...

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Bibliographic Details
Published in:Review of scientific instruments 2012-02, Vol.83 (2), p.02B312-02B312-4
Main Authors: Persaud, Arun, Waldmann, Ole, Kapadia, Rehan, Takei, Kuniharu, Javey, Ali, Schenkel, Thomas
Format: Article
Language:English
Subjects:
Arrays
Carbon
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Density
Field ionization
Nanocomposites
Nanomaterials
NANOSCIENCE AND NANOTECHNOLOGY
Nanostructure
OTHER INSTRUMENTATION
Surface properties
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Summary:Field ionization as a means to create ions for compact and rugged neutron sources is pursued. Arrays of carbon nano-fibers promise the high field-enhancement factors required for efficient field ionization. We report on the fabrication of arrays of field emitters with a density up to 10 6 tips/cm 2 and measure their performance characteristics using electron field emission. The critical issue of uniformity is discussed, as are efforts towards coating the nano-fibers to enhance their lifetime and surface properties.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.3672437