Graphene/graphite-based filament for thermal ionization

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United States of America Patent

PATENT NO 10056218
SERIAL NO

15435976

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Abstract

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Methods and systems for thermal ionization of a sample and formation of an ion beam are described. The systems incorporate a thermal ionization filament that is formed of a graphene-based material such as graphite, graphene, graphene oxide, reduced graphene oxide or combinations thereof. The filament material can be doped or chemically modified to control and tune the work function of the filament and improve ionization efficiency of a system incorporating the filament. The systems can be utilized in forming an ion beam for target bombardment or analysis via, e.g., mass spectrometry.

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Patent Owner(s)

  • SAVANNAH RIVER NUCLEAR SOLUTIONS, LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hall, Gregory Aiken, US 22 649
Hewitt, Joshua T Aiken, US 2 1
Schick,, Jr Charles R Aiken, US 1 1

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